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.

作者 Open Study Contributor

关于这套卡组

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.

这套卡组中的卡片

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

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