What is a passage's main idea?

The central point the author wants the whole passage to communicate.

What is the standard order of operations?

Parentheses → exponents → multiplication and division from left to right → addition and subtraction from left to right.

What is electric current?

The rate at which electric charge flows.

What properties stay unchanged when a shape is rotated?

Its size, side lengths, angles, and handedness stay unchanged; only orientation changes.

What does abundant mean?

Plentiful; present in large amounts.

What is a prime number?

A whole number greater than 1 with exactly two positive factors: 1 and itself.

What is the nucleus's main role in a eukaryotic cell?

It stores most of the cell's DNA and helps control gene activity.

What does an internal-combustion engine do?

Converts fuel's chemical energy into mechanical motion through combustion.

How does a reflection affect a shape's orientation?

It reverses handedness, producing a mirror image.

What is a factor of a number?

A whole number that divides the number with no remainder.

What do mitochondria do?

They release usable energy from food molecules and make much of the cell's ATP.

What eye protection is standard when chips, sparks, or flying debris are possible?

Properly rated safety glasses or goggles suited to the hazard.

What is a translation of a shape?

A slide that changes position without rotating or reflecting the shape.

What is a supporting detail?

A fact, example, reason, or explanation that develops the main idea.

What is a multiple of a number?

A result of multiplying that number by an integer.

What is the cell membrane's main job?

It controls what enters and leaves the cell.

When force acts along the direction of motion, what is mechanical work?

Force times displacement: W=Fd.

What must be true of two boundaries that join exactly?

Their lengths and contours must match while facing in complementary directions.

What does concise mean?

Brief but clear; using no unnecessary words.

How do you convert a fraction to a decimal?

Divide the numerator by the denominator.

What is photosynthesis?

The process by which plants, algae, and some microbes use light energy to make sugars from carbon dioxide and water.

How should a tab-and-slot pair behave in a valid assembly?

The tab should fit the slot without leaving a gap or creating overlap.

How do you convert a decimal to a percent?

Multiply by 100 and add the percent sign.

What is cellular respiration?

A process that releases energy from food molecules, commonly using oxygen and producing carbon dioxide and water.

What does a piston do in a reciprocating engine?

Moves back and forth in the cylinder and transfers combustion force to the connecting rod.

Which edges determine an assembled object's outer silhouette?

Only edges that remain exposed after the pieces join.

What is an inference in reading?

A conclusion supported by passage evidence even when it is not stated directly.

How do you convert a percent to a decimal?

Divide by 100, or move the decimal point two places left.

The molecule that stores hereditary information in living organisms.

What fastener is a Phillips screwdriver designed to turn?

A screw with a cross-shaped recess.

What usually happens to two edges joined along a shared boundary?

They become internal to the assembly rather than part of the outside outline.

What does diligent mean?

Careful and persistent in one's work.

What is the reciprocal of a nonzero number?

The number that gives 1 when multiplied by the original number; for a/b, it is b/a.

A segment of DNA that contributes to a functional product or inherited trait.

Why does overlap eliminate a proposed piece arrangement?

Solid pieces cannot occupy the same area in a valid assembly.

What makes two fractions equivalent?

They represent the same value because the numerator and denominator were multiplied or divided by the same nonzero number.

Electric potential difference: energy transferred per unit charge.

What scale rule applies when comparing pieces meant to join?

They must be compared at the same scale; rotation does not resize a piece.

What is an author's purpose?

The main reason for writing, such as to inform, explain, persuade, or entertain.

What is the main job of red blood cells?

Carry oxygen, mainly through hemoglobin.

What does a crankshaft do in a piston engine?

Converts the pistons' back-and-forth motion into rotation.

What is a useful anchor for mental assembly?

A distinctive corner, notch, tab, or long edge that can be tracked across rotations.

What does obsolete mean?

No longer used because something newer has replaced it.

ASVAB Flashcards: Verbal, Math, Science & Technical Review

Review 220 original ASVAB flashcards covering vocabulary, math formulas and setup patterns, science, electronics, auto and shop knowledge, mechanics, and bounded spatial concepts.

By author Open Study Contributor

About this deck

ASVAB Flashcards: Verbal, Math, Science & Technical Review

Review the facts worth recalling before you spend time on full practice questions. These 220 English flashcards cover all four official ASVAB domains and map to the ten computerized subtests without copying the test.

What the cards practice

Verbal — 45 cards: produce meanings for 20 useful words, connect 10 roots or affixes with their meanings and examples, and recall 15 bounded reading concepts such as main idea, inference, tone, context clues, and passage structure.
Math — 55 cards: recall number rules, algebra relationships, geometry formulas, and ten common setup patterns for rates, interest, percent change, mixtures, work, probability, scale, and word-to-expression translation.
Science — 40 cards: connect life-science structures and processes, chemistry and physics terms, and Earth and space processes with their defining functions or principles.
Technical — 65 cards: connect electrical quantities, circuit behavior, vehicle and shop components, tools, simple machines, and physical principles with their functions, units, formulas, or relationships.
Spatial — 15 cards: recall bounded rotation, reflection, boundary-matching, silhouette, overlap, scale, landmark, symmetry, and viewpoint concepts that support spatial-relation practice.

The cards use useful forward mappings such as term → meaning, quantity → unit or formula, component → function, and principle → relationship. A few prompts ask for a setup from familiar wording. The deck does not mechanically reverse every fact, add answer-choice recognition, or turn every definition into several near-duplicates.

What needs separate practice

Flashcards are a poor substitute for passage-heavy Paragraph Comprehension drills, timed multi-step Arithmetic Reasoning problems, and full visual Assembling Objects items. Those need original passages or diagrams, realistic answer choices, and time pressure, so they are explicitly excluded here. The deck also excludes score tables, changing service cutoffs, advanced electronics design, diagnostic auto repair, hazardous procedures, and obscure trade trivia.

Learning order

The sequence makes repeated passes across verbal, math, science, technical, and spatial material. Foundations arrive before dependent knowledge: number operations before algebra and applied setups, cell and matter basics before larger systems, electrical quantities before circuit rules, and component names before mechanical relationships. Related directions and near-duplicates are separated by at least three unrelated cards where practical; the later technical tail keeps rotating among electronics, auto, and mechanics.

Scope and provenance

The official ASVAB subtests page defines the four domains and ten computerized subtests. Its administration note explains that Auto Information and Shop Information are separate on the computerized test but combined on the paper-and-pencil test and for the reported AS score. The official preparation guidance recommends a solid foundation in mathematics, English, science, and technical coursework.

The facts are common high-school and introductory technical knowledge. The prompts, answers, selection, and order were independently written and manually checked. No competitor cards or third-party media were used. The generated cover is original and contains no official marks.

The Common knowledge · CC0 1.0 label applies to the original wording, organization, metadata, and cover to the extent applicable rights exist. It does not claim ownership of facts or third-party names.

Source and compatibility review: August 31, 2026.

This is an independent, unofficial study deck. It is not affiliated with, endorsed by, or supplied with questions by the ASVAB Testing Program or the U.S. Department of Defense. No official questions, passages, answer choices, score tables, curriculum wording, or protected prep-book wording were copied.

Cards in this deck

Card 1
Question
What is a passage's main idea?
Answer
The central point the author wants the whole passage to communicate.
Card 2
Question
What is the standard order of operations?
Answer
Parentheses → exponents → multiplication and division from left to right → addition and subtraction from left to right.
Card 3
Question
What is the basic structural and functional unit of life?
Answer
The cell.
Card 4
Question
What is electric current?
Answer
The rate at which electric charge flows.
Card 5
Question
What properties stay unchanged when a shape is rotated?
Answer
Its size, side lengths, angles, and handedness stay unchanged; only orientation changes.
Card 6
Question
What does abundant mean?
Answer
Plentiful; present in large amounts.
Card 7
Question
What is a prime number?
Answer
A whole number greater than 1 with exactly two positive factors: 1 and itself.
Card 8
Question
What is the nucleus's main role in a eukaryotic cell?
Answer
It stores most of the cell's DNA and helps control gene activity.
Card 9
Question
What does an internal-combustion engine do?
Answer
Converts fuel's chemical energy into mechanical motion through combustion.
Card 10
Question
How does a reflection affect a shape's orientation?
Answer
It reverses handedness, producing a mirror image.
Card 11
Question
What does the prefix pre- mean?
Answer
Before, as in preview.
Card 12
Question
What is a factor of a number?
Answer
A whole number that divides the number with no remainder.
Card 13
Question
What do mitochondria do?
Answer
They release usable energy from food molecules and make much of the cell's ATP.
Card 14
Question
What eye protection is standard when chips, sparks, or flying debris are possible?
Answer
Properly rated safety glasses or goggles suited to the hazard.
Card 15
Question
What is a translation of a shape?
Answer
A slide that changes position without rotating or reflecting the shape.
Card 16
Question
What is a supporting detail?
Answer
A fact, example, reason, or explanation that develops the main idea.
Card 17
Question
What is a multiple of a number?
Answer
A result of multiplying that number by an integer.
Card 18
Question
What is the cell membrane's main job?
Answer
It controls what enters and leaves the cell.
Card 19
Question
When force acts along the direction of motion, what is mechanical work?
Answer
Force times displacement: $W=Fd$ .
Card 20
Question
What must be true of two boundaries that join exactly?
Answer
Their lengths and contours must match while facing in complementary directions.
Card 21
Question
What does concise mean?
Answer
Brief but clear; using no unnecessary words.
Card 22
Question
How do you convert a fraction to a decimal?
Answer
Divide the numerator by the denominator.
Card 23
Question
What is photosynthesis?
Answer
The process by which plants, algae, and some microbes use light energy to make sugars from carbon dioxide and water.
Card 24
Question
What is the SI unit of electric current?
Answer
The ampere, or amp.
Card 25
Question
How should a tab-and-slot pair behave in a valid assembly?
Answer
The tab should fit the slot without leaving a gap or creating overlap.
Card 26
Question
What does the suffix -less mean?
Answer
Without, as in careless.
Card 27
Question
How do you convert a decimal to a percent?
Answer
Multiply by 100 and add the percent sign.
Card 28
Question
What is cellular respiration?
Answer
A process that releases energy from food molecules, commonly using oxygen and producing carbon dioxide and water.
Card 29
Question
What does a piston do in a reciprocating engine?
Answer
Moves back and forth in the cylinder and transfers combustion force to the connecting rod.
Card 30
Question
Which edges determine an assembled object's outer silhouette?
Answer
Only edges that remain exposed after the pieces join.
Card 31
Question
What is an inference in reading?
Answer
A conclusion supported by passage evidence even when it is not stated directly.
Card 32
Question
How do you convert a percent to a decimal?
Answer
Divide by 100, or move the decimal point two places left.
Card 33
Question
What is DNA?
Answer
The molecule that stores hereditary information in living organisms.
Card 34
Question
What fastener is a Phillips screwdriver designed to turn?
Answer
A screw with a cross-shaped recess.
Card 35
Question
What usually happens to two edges joined along a shared boundary?
Answer
They become internal to the assembly rather than part of the outside outline.
Card 36
Question
What does diligent mean?
Answer
Careful and persistent in one's work.
Card 37
Question
What is the reciprocal of a nonzero number?
Answer
The number that gives 1 when multiplied by the original number; for $a/b$ , it is $b/a$ .
Card 38
Question
What is a gene?
Answer
A segment of DNA that contributes to a functional product or inherited trait.
Card 39
Question
What is mechanical power?
Answer
The rate of doing work: $P=W/t$ .
Card 40
Question
Why does overlap eliminate a proposed piece arrangement?
Answer
Solid pieces cannot occupy the same area in a valid assembly.
Card 41
Question
What does the root bio mean?
Answer
Life, as in biology.
Card 42
Question
What makes two fractions equivalent?
Answer
They represent the same value because the numerator and denominator were multiplied or divided by the same nonzero number.
Card 43
Question
What is an allele?
Answer
One version of a gene.
Card 44
Question
What is voltage?
Answer
Electric potential difference: energy transferred per unit charge.
Card 45
Question
What scale rule applies when comparing pieces meant to join?
Answer
They must be compared at the same scale; rotation does not resize a piece.
Card 46
Question
What is an author's purpose?
Answer
The main reason for writing, such as to inform, explain, persuade, or entertain.
Card 47
Question
What does a ratio compare?
Answer
Two quantities by division.
Card 48
Question
What is the main job of red blood cells?
Answer
Carry oxygen, mainly through hemoglobin.
Card 49
Question
What does a crankshaft do in a piston engine?
Answer
Converts the pistons' back-and-forth motion into rotation.
Card 50
Question
What is a useful anchor for mental assembly?
Answer
A distinctive corner, notch, tab, or long edge that can be tracked across rotations.
Card 51
Question
What does obsolete mean?
Answer
No longer used because something newer has replaced it.
Card 52
Question
What is a proportion?
Answer
An equation stating that two ratios are equal.
Card 53
Question
What is the main job of white blood cells?
Answer
Help defend the body against infection and other threats.
Card 54
Question
What fastener is a slotted screwdriver designed to turn?
Answer
A screw with one straight slot.
Card 55
Question
What should you track while mentally rotating a complex piece?
Answer
One distinctive landmark and its relationship to nearby edges.
Card 56
Question
What does the prefix anti- mean?
Answer
Against or opposed to, as in antifreeze.
Card 57
Question
How do you find the arithmetic mean?
Answer
Add all values and divide by the number of values.
Card 58
Question
What does a neuron do?
Answer
Receives and transmits information through electrical and chemical signals.
Card 59
Question
How is ideal mechanical advantage defined?
Answer
Ideal mechanical advantage is input distance divided by output distance. In a frictionless ideal machine, it also equals output force divided by input force.
Card 60
Question
How can symmetry help with a spatial-relation problem?
Answer
It reveals repeated or mirrored positions. Reflection reverses handedness, so a candidate must match the target's handedness.
Card 61
Question
How does a definition context clue help with an unfamiliar word?
Answer
The sentence directly explains the word's meaning nearby.
Card 62
Question
What is the median?
Answer
The middle value after the data are ordered, or the mean of the two middle values when the count is even.
Card 63
Question
What is homeostasis?
Answer
The maintenance of relatively stable internal conditions despite outside change.
Card 64
Question
What is the SI unit of voltage?
Answer
The volt.
Card 65
Question
Does viewing an object from another angle change the object itself?
Answer
No. The visible faces and edges change, but the object's dimensions and connections do not.
Card 66
Question
What does reluctant mean?
Answer
Unwilling or hesitant.
Card 67
Question
Why use a least common denominator when adding fractions?
Answer
It gives the fractions a shared unit size so their numerators can be combined.
Card 68
Question
What is an ecosystem?
Answer
A community of organisms interacting with each other and with their physical environment.
Card 69
Question
What does a camshaft control in a four-stroke engine?
Answer
The timing of intake and exhaust valve opening and closing.
Card 70
Question
How can a hidden edge be inferred in a simple assembly?
Answer
Continue the visible boundary consistently unless another piece blocks or joins it.
Card 71
Question
What does the root geo mean?
Answer
Earth, as in geology.
Card 72
Question
What is absolute value?
Answer
A number's distance from zero, so it is never negative.
Card 73
Question
What is natural selection?
Answer
Individuals with heritable traits suited to an environment tend to leave more offspring, so those traits become more common.
Card 74
Question
What is an open-end wrench mainly used for?
Answer
Turning nuts and bolt heads that can be reached from the side.
Card 75
Question
What quick checks can eliminate an impossible assembly?
Answer
Mismatched edge lengths, wrong corner counts, overlap, gaps, or an outer outline that cannot be formed.
Card 76
Question
What do contrast signals such as however or although tell a reader?
Answer
The next idea differs from or qualifies the previous idea.
Card 77
Question
What is a variable?
Answer
A symbol that represents an unknown or changeable value.
Card 78
Question
What is an atom?
Answer
The smallest unit of an element that retains that element's chemical identity.
Card 79
Question
What is a fulcrum?
Answer
The pivot point of a lever.
Card 80
Question
What does impartial mean?
Answer
Fair and not favoring one side.
Card 81
Question
What is a coefficient?
Answer
A number that multiplies a variable.
Card 82
Question
What is an element?
Answer
A pure substance made of atoms with the same number of protons.
Card 83
Question
What is electrical resistance?
Answer
Opposition to electric current.
Card 84
Question
What does the suffix -ology mean?
Answer
The study of, as in geology.
Card 85
Question
What is the distributive property?
Answer
Multiply the outside factor by every term inside: $a(b+c)=ab+ac$ .
Card 86
Question
What is a compound?
Answer
A substance made of two or more elements chemically bonded in fixed proportions.
Card 87
Question
What does a spark plug do in a gasoline engine?
Answer
Creates the spark that ignites the compressed air-fuel mixture.
Card 88
Question
What do cause-and-effect signals help a reader identify?
Answer
Why something happened and what resulted from it.
Card 89
Question
When can algebraic terms be combined?
Answer
When they are like terms with the same variable parts and exponents.
Card 90
Question
What defines a physical change?
Answer
The material changes form or state without becoming a different substance.
Card 91
Question
What is the main advantage of a socket wrench?
Answer
Its socket surrounds the fastener head, giving secure contact and efficient repeated turning.
Card 92
Question
What does feasible mean?
Answer
Possible and practical to do.
Card 93
Question
For a positive whole-number exponent, what does the exponent tell you?
Answer
How many times the base is used as a factor.
Card 94
Question
What defines a chemical change?
Answer
One or more substances become new substances with different chemical compositions.
Card 95
Question
Where is the fulcrum in a first-class lever?
Answer
Between the effort and the load.
Card 96
Question
What does the prefix inter- mean?
Answer
Between or among, as in interstate.
Card 97
Question
What is the product-of-powers rule for the same base?
Answer
Add the exponents: $a^m a^n=a^{m+n}$ .
Card 98
Question
What does conservation of mass mean in an ordinary chemical reaction?
Answer
Atoms are rearranged, but total mass stays constant in a closed system.
Card 99
Question
What is the SI unit of electrical resistance?
Answer
The ohm.
Card 100
Question
What is a pronoun's referent?
Answer
The noun or noun phrase that the pronoun stands for.
Card 101
Question
What does a negative exponent mean?
Answer
For nonzero $a$ , $a^{-n}=1/a^n$ .
Card 102
Question
What is density?
Answer
Mass per unit volume: $\rho=m/V$ .
Card 103
Question
What does a fuel injector do?
Answer
Meters and sprays fuel into the engine's air path or combustion chamber.
Card 104
Question
What does ambiguous mean?
Answer
Open to more than one interpretation; unclear.
Card 105
Question
What is a square root of a number?
Answer
A value that produces the number when multiplied by itself.
Card 106
Question
What relationship does Newton's second law express?
Answer
Net force equals mass times acceleration: $F=ma$ .
Card 107
Question
What is an adjustable wrench used for?
Answer
Turning different sizes of nuts or bolt heads with one movable jaw.
Card 108
Question
What does the root cred mean?
Answer
Believe or trust, as in credible.
Card 109
Question
What is the core rule for solving a linear equation?
Answer
Use inverse operations while performing the same operation on both sides.
Card 110
Question
How does velocity differ from speed?
Answer
Velocity includes direction; speed does not.
220 cards
ASVAB Flashcards: Verbal, Math, Science & Technical Review
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Card 111
Question
Where is the load in a second-class lever?
Answer
Between the fulcrum and the effort.
Card 112
Question
How does a fact differ from an opinion?
Answer
A fact can be checked against evidence; an opinion expresses a judgment or belief.
Card 113
Question
What is the slope formula between two points?
Answer
$m=(y_2-y_1)/(x_2-x_1)$ , provided $x_2\ne x_1$ .
Card 114
Question
What is energy?
Answer
The capacity to do work or cause change.
Card 115
Question
What relationship does Ohm's law express?
Answer
Voltage equals current times resistance: $V=IR$ .
Card 116
Question
What does meticulous mean?
Answer
Very careful about small details.
Card 117
Question
What does $y=mx+b$ show?
Answer
A line with slope $m$ and vertical intercept $b$ .
Card 118
Question
What is conduction?
Answer
Heat transfer through direct particle contact, especially within or between solids.
Card 119
Question
What does a vehicle radiator do?
Answer
Transfers heat from engine coolant to the surrounding air.
Card 120
Question
What does scarce mean?
Answer
Limited in supply; hard to find.
Card 121
Question
When must an inequality sign reverse?
Answer
When both sides are multiplied or divided by a negative number.
Card 122
Question
What is convection?
Answer
Heat transfer by the bulk motion of a fluid such as air or water.
Card 123
Question
What are general-purpose pliers mainly used for?
Answer
Gripping, holding, and bending objects.
Card 124
Question
What does a compare-and-contrast structure show?
Answer
How two or more subjects are alike and different.
Card 125
Question
What is a solution to a system of two equations?
Answer
A value pair that makes both equations true.
Card 126
Question
What is thermal radiation?
Answer
Energy transfer by electromagnetic waves; it does not require matter.
Card 127
Question
Where is the effort in a third-class lever?
Answer
Between the fulcrum and the load.
Card 128
Question
What does resilient mean?
Answer
Able to recover or adapt after difficulty.
Card 129
Question
How do you factor out a greatest common factor?
Answer
Divide every term by the common factor and place that factor outside parentheses.
Card 130
Question
What is Earth's crust?
Answer
The planet's thin, solid outermost layer.
Card 131
Question
What is electrical power in a DC circuit?
Answer
Voltage times current: $P=VI$ .
Card 132
Question
What does versatile mean?
Answer
Able to serve several purposes or adapt to different tasks.
Card 133
Question
What is the quadratic formula for $ax^2+bx+c=0$ ?
Answer
$x=(-b\pm\sqrt{b^2-4ac})/(2a)$ .
Card 134
Question
What is Earth's mantle?
Answer
The thick layer of hot rock between the crust and core; it flows slowly over long times.
Card 135
Question
What does an engine thermostat regulate?
Answer
Coolant flow based on temperature so the engine warms up and avoids overheating.
Card 136
Question
What do sequence signals such as first, next, and finally show?
Answer
The order in which steps or events occur.
Card 137
Question
What is the perimeter of a rectangle?
Answer
$P=2l+2w$ .
Card 138
Question
What is Earth's core?
Answer
The iron-rich central region, with a liquid outer core and solid inner core.
Card 139
Question
What is a ball-peen hammer mainly used for?
Answer
Shaping metal and striking punches or rivets.
Card 140
Question
What does sporadic mean?
Answer
Occurring irregularly or only from time to time.
Card 141
Question
What is the area of a rectangle?
Answer
$A=lw$ .
Card 142
Question
What does the rock cycle describe?
Answer
How igneous, sedimentary, and metamorphic rocks change from one type to another.
Card 143
Question
What does a fixed pulley change in the ideal case?
Answer
The direction of the effort; its ideal mechanical advantage is 1.
Card 144
Question
What does frugal mean?
Answer
Careful about spending or using resources.
Card 145
Question
What is the area of a triangle?
Answer
$A=bh/2$ .
Card 146
Question
How does weather differ from climate?
Answer
Weather is short-term atmospheric conditions; climate is the long-term pattern for a region.
Card 147
Question
What is an electrical conductor?
Answer
A material that allows electric charge to move relatively easily.
Card 148
Question
What is tone in a passage?
Answer
The author's attitude toward the subject or audience.
Card 149
Question
What is the circumference of a circle?
Answer
$C=2\pi r$ or $C=\pi d$ .
Card 150
Question
What is evaporation in the water cycle?
Answer
Liquid water changing into water vapor.
Card 151
Question
What does an alternator do while a vehicle's engine runs?
Answer
Supplies electrical power and recharges the battery.
Card 152
Question
What does novice mean?
Answer
A beginner.
Card 153
Question
What is the area of a circle?
Answer
$A=\pi r^2$ .
Card 154
Question
What is condensation in the water cycle?
Answer
Water vapor cooling into liquid droplets.
Card 155
Question
What is a hacksaw mainly used to cut?
Answer
Metal and some plastics, using a fine-toothed blade.
Card 156
Question
What does the prefix trans- mean?
Answer
Across, through, or beyond, as in transport.
Card 157
Question
What relationship does the Pythagorean theorem give for a right triangle?
Answer
$a^2+b^2=c^2$ , where $c$ is the hypotenuse.
Card 158
Question
What is precipitation?
Answer
Water falling from clouds as rain, snow, sleet, or hail.
Card 159
Question
What is the ideal mechanical advantage of one movable pulley supported by two rope segments?
Answer
2; the load is shared by two supporting rope segments.
Card 160
Question
What is a summary?
Answer
A brief statement of the main idea and the most important supporting points.
Card 161
Question
What is the sum of a triangle's interior angles?
Answer
$180^\circ$ .
Card 162
Question
What does plate tectonics explain?
Answer
The movement of Earth's lithospheric plates and many earthquakes, volcanoes, and mountain ranges.
Card 163
Question
What is an electrical insulator?
Answer
A material that strongly resists the movement of electric charge.
Card 164
Question
What does verify mean?
Answer
Confirm that something is true or accurate.
Card 165
Question
What are complementary angles?
Answer
Two angles whose measures add to $90^\circ$ .
Card 166
Question
What primarily causes Earth's seasons?
Answer
Earth's axial tilt as it orbits the Sun.
Card 167
Question
What is a vehicle battery's main starting role?
Answer
Provides electrical energy to the starter motor and ignition or control systems.
Card 168
Question
What does plausible mean?
Answer
Reasonable or believable.
Card 169
Question
What are supplementary angles?
Answer
Two angles whose measures add to $180^\circ$ .
Card 170
Question
What causes the Moon's phases?
Answer
Our view of the Moon's sunlit half changes as the Moon orbits Earth.
Card 171
Question
What does a hand file do?
Answer
Removes small amounts of material to shape, deburr, or smooth a surface.
Card 172
Question
What is a word's connotation?
Answer
The feeling or association a word suggests beyond its literal meaning.
Card 173
Question
What is the area of a parallelogram?
Answer
$A=bh$ , using the perpendicular height.
Card 174
Question
What keeps planets in orbit around the Sun?
Answer
Gravity supplies the inward force that bends their motion into an orbit.
Card 175
Question
How do the speeds of two meshed gears compare?
Answer
The smaller gear turns faster; speed is inversely related to tooth count.
Card 176
Question
What does prudent mean?
Answer
Careful and sensible about future consequences.
Card 177
Question
What is the area of a trapezoid?
Answer
$A=(b_1+b_2)h/2$ .
Card 178
Question
How does current behave in a simple series circuit?
Answer
The same current passes through every component.
Card 179
Question
What does the prefix mis- mean?
Answer
Wrongly or badly, as in misjudge.
Card 180
Question
What is the volume of a rectangular prism?
Answer
$V=lwh$ .
Card 181
Question
What does a vehicle transmission do?
Answer
Changes the speed-and-torque relationship between the engine and the drive wheels.
Card 182
Question
What is a paraphrase?
Answer
A restatement of the same idea in different words without changing its meaning.
Card 183
Question
What is the volume of a cylinder?
Answer
$V=\pi r^2h$ .
Card 184
Question
What does a drill bit do?
Answer
Cuts a hole as it rotates; the bit type must match the material.
Card 185
Question
What does tangible mean?
Answer
Able to be touched; more broadly, real and definite.
Card 186
Question
What is the surface area of a rectangular prism?
Answer
$SA=2lw+2lh+2wh$ .
Card 187
Question
Which directions do two directly meshed external gears rotate?
Answer
Opposite directions.
Card 188
Question
What does candid mean?
Answer
Honest and direct.
Card 189
Question
How do corresponding lengths compare in similar figures?
Answer
They share one scale factor; corresponding angles stay equal.
Card 190
Question
How does voltage behave across branches of an ideal parallel circuit?
Answer
Each branch has the same voltage as the source.
Card 191
Question
What equation links distance, rate, and time?
Answer
$d=rt$ .
Card 192
Question
What does a differential let driven wheels do?
Answer
Rotate at different speeds while still receiving torque.
Card 193
Question
What is the simple-interest formula?
Answer
$I=Prt$ , where $P$ is principal, $r$ is the decimal annual rate, and $t$ is time in years.
Card 194
Question
What does a bench vise do?
Answer
Holds a workpiece firmly while it is cut, filed, drilled, or assembled.
Card 195
Question
How do you find a unit rate?
Answer
Divide to express the quantity per one unit.
Card 196
Question
How does an inclined plane trade force for distance?
Answer
It reduces the required input force by increasing the distance over which the force acts.
Card 197
Question
How do you calculate signed percent change?
Answer
$\text{percent change}=(\text{new}-\text{original})/\text{original}\times100\%$ , when the original is nonzero. A positive result is an increase; a negative result is a decrease.
Card 198
Question
What is an open circuit?
Answer
A broken or incomplete path in which current cannot flow through the intended loop.
Card 199
Question
What two equations set up a two-part mixture problem?
Answer
Use both $a_1+a_2=A$ and $c_1a_1+c_2a_2=c_tA$ . The $a$ values are amounts in compatible units, and the $c$ values are decimal concentrations.
Card 200
Question
How does a disc brake slow a wheel?
Answer
A caliper presses pads against a rotating disc, creating friction.
Card 201
Question
How do combined work rates relate?
Answer
Add the individual rates: $1/T=1/t_1+1/t_2$ for two workers acting together.
Card 202
Question
What is pressure?
Answer
Force per unit area: $p=F/A$ .
Card 203
Question
For equally likely outcomes, how is probability found?
Answer
Favorable outcomes divided by total possible outcomes.
Card 204
Question
What is a closed circuit?
Answer
A complete conducting path that allows current to flow.
Card 205
Question
How does a scale drawing connect drawing length to actual length?
Answer
Corresponding lengths form an equal ratio using one consistent scale factor.
Card 206
Question
What are the main jobs of tire tread?
Answer
Provide grip and channel water away from the tire's contact area.
Card 207
Question
How can two consecutive integers be represented algebraically?
Answer
$n$ and $n+1$ .
Card 208
Question
What does Pascal's principle say?
Answer
A change in pressure applied to a confined fluid is transmitted undiminished throughout the fluid and to the container walls.
Card 209
Question
Why must you reverse the order in a phrase such as “5 less than $x$ ”?
Answer
“5 less than $x$ ” means $x-5$ , because the amount is subtracted from $x$ .
Card 210
Question
What is a short circuit?
Answer
An unintended low-resistance path that can produce dangerously high current.
Card 211
Question
What does engine oil do?
Answer
Lubricates moving parts, reduces friction and wear, and helps carry heat and contaminants away.
Card 212
Question
What does a capacitor store?
Answer
Electric charge and energy in an electric field.
Card 213
Question
What is the buoyant force on an immersed object equal to?
Answer
The weight of the fluid the object displaces.
Card 214
Question
What does a fuse do?
Answer
Melts and opens the circuit when current exceeds its rated limit.
Card 215
Question
What does friction do?
Answer
Opposes relative motion or the tendency of motion between contacting surfaces.
Card 216
Question
What does a resistor do in a circuit?
Answer
Limits current or creates a controlled voltage drop.
Card 217
Question
How does a lower center of gravity usually affect stability?
Answer
It makes an object less likely to tip.
Card 218
Question
What does a circuit breaker do?
Answer
Opens a circuit when current is excessive and can usually be reset after the fault is cleared.
Card 219
Question
What is torque?
Answer
The turning effect of a force: force times perpendicular lever arm.
Card 220
Question
What does a diode do?
Answer
Allows current mainly in one direction while blocking it in the reverse direction.

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220 cards

ASVAB Flashcards: Verbal, Math, Science & Technical Review

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ASVAB Flashcards: Verbal, Math, Science & Technical Review

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