Topic-specific practice · 42 questions for every official topic

AP Physics 1 MCQ Practice by Topic 2027

Choose a topic to open its full 42-question bank. The topic links from lesson pages land directly on the matching bank, so a student reviewing Topic 1.3 is not sent to a short generic diagnostic.

Quick answer

How much AP Physics 1 MCQ practice is available?

There are 42 original multiple-choice questions for each of the 43 official AP Physics 1 topics, giving 1,806 topic MCQs with answers, explanations and lesson routing.

Key facts

43 topic banks.
42 MCQs per topic.
1,806 topic MCQs total.

Verified for 2026–27Updated August 31, 2026How this page is verified

All 43 topic banks

Choose the exact AP Physics 1 topic

All 43 official topics are available. Each MCQ bank contains 42 original questions and each FRQ bank contains four prompts aligned to the four current free-response task types.

Topic 1.1Scalars & Vectors in One Dimension42 MCQs Topic 1.2Displacement, Velocity & Acceleration42 MCQs Topic 1.3Representing Motion42 MCQs Topic 1.4Reference Frames & Relative Motion42 MCQs Topic 1.5Vectors & Motion in Two Dimensions42 MCQs Topic 2.1Systems & Center of Mass42 MCQs Topic 2.2Forces & Free-Body Diagrams42 MCQs Topic 2.3Newton’s Third Law42 MCQs Topic 2.4Newton’s First Law42 MCQs Topic 2.5Newton’s Second Law42 MCQs Topic 2.6Gravitational Force42 MCQs Topic 2.7Kinetic & Static Friction42 MCQs Topic 2.8Spring Forces42 MCQs Topic 2.9Circular Motion42 MCQs Topic 3.1Translational Kinetic Energy42 MCQs Topic 3.2Work42 MCQs Topic 3.3Potential Energy42 MCQs Topic 3.4Conservation of Energy42 MCQs Topic 3.5Power42 MCQs Topic 4.1Linear Momentum42 MCQs Topic 4.2Change in Momentum and Impulse42 MCQs Topic 4.3Conservation of Linear Momentum42 MCQs Topic 4.4Elastic and Inelastic Collisions42 MCQs Topic 5.1Rotational Kinematics42 MCQs Topic 5.2Connecting Linear and Rotational Motion42 MCQs Topic 5.3Torque42 MCQs Topic 5.4Rotational Inertia42 MCQs Topic 5.5Rotational Equilibrium and Newton’s First Law in Rotational Form42 MCQs Topic 5.6Newton’s Second Law in Rotational Form42 MCQs Topic 6.1Rotational Kinetic Energy42 MCQs Topic 6.2Torque and Work42 MCQs Topic 6.3Angular Momentum and Angular Impulse42 MCQs Topic 6.4Conservation of Angular Momentum42 MCQs Topic 6.5Rolling42 MCQs Topic 6.6Motion of Orbiting Satellites42 MCQs Topic 7.1Defining Simple Harmonic Motion (SHM)42 MCQs Topic 7.2Frequency and Period of SHM42 MCQs Topic 7.3Representing and Analyzing SHM42 MCQs Topic 7.4Energy of Simple Harmonic Oscillators42 MCQs Topic 8.1Internal Structure and Density42 MCQs Topic 8.2Pressure42 MCQs Topic 8.3Fluids and Newton’s Laws42 MCQs Topic 8.4Fluids and Conservation Laws42 MCQs

Topic 8.1 · 42 MCQs

Internal Structure and Density Practice

All questions are original. Check each answer for immediate feedback and explanation, then use the lesson link inside the explanation when a concept needs repair.

Topic 8.1 representation anchorUse the picture together with words and equations—not as decoration.

Question 1

A sample has mass 6 kg and volume 0.003 m³. What is its density?

A0.0005 kg/m³B2 kg/m³C200 kg/m³D2000 kg/m³

Question 2

Two objects have the same mass. Object A has twice the volume of B. How do their densities compare?

Aρ_A=2ρ_BBρ_A=ρ_BCρ_A=ρ_B/2Dρ_A=ρ_B/4

Question 3

A material has density 800 kg/m³. What mass occupies 0.050 m³?

A16 kgB40 kgC80 kgD16000 kg

Question 4

Two equal-density cubes with one twice the volume have mass ratio 2:1. Which Topic 8.1 concept most directly explains this physical situation?

AAverage densityBMicroscopic structureCUniform materialDSpecific comparison

Question 5

Which statement best defines Uniform material in Topic 8.1?

AFor uniform density, mass is proportional to volume.BComposite/porous objects can be described by total mass divided by total external volume.CDensity reflects particle masses and spacing at the microscopic level.DRelative density helps predict buoyancy trends when compared with fluid density.

Question 6

A second situation is observed: Cutting a uniform block in half leaves the material density unchanged. Which concept is being applied?

ASpecific comparisonBUniform materialCAverage densityDMicroscopic structure

Question 7

A hollow ship has average density low enough to float despite dense steel walls. Which Topic 8.1 concept most directly explains this physical situation?

AMicroscopic structureBSpecific comparisonCAverage densityDDensity

Question 8

Which statement best defines Average density in Topic 8.1?

AComposite/porous objects can be described by total mass divided by total external volume.BDensity reflects particle masses and spacing at the microscopic level.CRelative density helps predict buoyancy trends when compared with fluid density.DMass contained per unit volume.

Question 9

A second situation is observed: A foam block’s air spaces lower its average density. Which concept is being applied?

ADensityBAverage densityCMicroscopic structureDSpecific comparison

Question 10

Compressed gas has greater density because same mass occupies smaller volume. Which Topic 8.1 concept most directly explains this physical situation?

ASpecific comparisonBDensityCMicroscopic structureDUniform material

Question 11

Which statement best defines Microscopic structure in Topic 8.1?

ADensity reflects particle masses and spacing at the microscopic level.BRelative density helps predict buoyancy trends when compared with fluid density.CMass contained per unit volume.DFor uniform density, mass is proportional to volume.

Question 12

A second situation is observed: Thermal expansion can lower density if mass stays fixed while volume grows. Which concept is being applied?

AUniform materialBMicroscopic structureCSpecific comparisonDDensity

Question 13

Oil floats on water because its density is lower. Which Topic 8.1 concept most directly explains this physical situation?

ADensityBUniform materialCSpecific comparisonDAverage density

Question 14

Which statement best defines Specific comparison in Topic 8.1?

ARelative density helps predict buoyancy trends when compared with fluid density.BMass contained per unit volume.CFor uniform density, mass is proportional to volume.DComposite/porous objects can be described by total mass divided by total external volume.

Question 15

A second situation is observed: A dense rock sinks in water if its average density exceeds water’s. Which concept is being applied?

AAverage densityBSpecific comparisonCDensityDUniform material

Question 16

Which relationship best represents this Topic 8.1 idea: Density definition?

Am = ρVBρ = m/VCV = m/ρDNo quantitative relationship applies

Question 17

In Topic 8.1, which variable-and-unit description belongs with ρ = m/V?

AFor V = m/ρ: m³BFor m = ρV: kgCFor ρ = m/V: ρ: kg/m³; m: kg; V: m³DAll quantities are unitless

Question 18

For Topic 8.1, consider this real application: 2 kg occupying .001 m³ has 2000 kg/m³. Which relationship supports that result?

Aρ = m/VBV = m/ρCm = ρVDOnly a verbal rule with no relationship

Question 19

Which relationship best represents this Topic 8.1 idea: Find mass from density and volume?

AV = m/ρBm = ρVCρ = m/VDNo quantitative relationship applies

Question 20

In Topic 8.1, which variable-and-unit description belongs with m = ρV?

AFor ρ = m/V: ρ: kg/m³; m: kg; V: m³BFor V = m/ρ: m³CFor m = ρV: kgDAll quantities are unitless

Question 21

For Topic 8.1, consider this real application: Water volume .002 m³ has mass about 2 kg. Which relationship supports that result?

Am = ρVBρ = m/VCV = m/ρDOnly a verbal rule with no relationship

Question 22

Which relationship best represents this Topic 8.1 idea: Find volume?

Aρ = m/VBV = m/ρCm = ρVDNo quantitative relationship applies

Question 23

In Topic 8.1, which variable-and-unit description belongs with V = m/ρ?

AFor m = ρV: kgBFor ρ = m/V: ρ: kg/m³; m: kg; V: m³CFor V = m/ρ: m³DAll quantities are unitless

Question 24

For Topic 8.1, consider this real application: 1 kg water occupies .001 m³. Which relationship supports that result?

AV = m/ρBm = ρVCρ = m/VDOnly a verbal rule with no relationship

Question 25

In Topic 8.1, analyze this situation: Equal-volume blocks are compared. Which conclusion is most consistent with the physics?

AMass and volume halve, but density remains unchanged.BIts total mass divided by large enclosed volume gives an average density compatible with buoyancy.CThe higher-density material has greater mass.DThere is not enough information to use any Topic 8.1 idea

Question 26

Which Topic 8.1 worked example best illustrates this reasoning: “The higher-density material has greater mass”?

AHollow shipBWood vs metalCCutting blockDNone of the listed physical situations

Question 27

A student is deciding how to begin the “Wood vs metal” situation. What is the best first move?

ASubstitute numbers before identifying the modelBIdentify the relevant Topic 8.1 concept/relationship and its assumptionsCIgnore units and directionsDUse every formula in the unit

Question 28

In Topic 8.1, analyze this situation: Uniform block is cut in half. Which conclusion is most consistent with the physics?

AIts total mass divided by large enclosed volume gives an average density compatible with buoyancy.BThe higher-density material has greater mass.CMass and volume halve, but density remains unchanged.DThere is not enough information to use any Topic 8.1 idea

Question 29

Which Topic 8.1 worked example best illustrates this reasoning: “Mass and volume halve, but density remains unchanged”?

AWood vs metalBCutting blockCHollow shipDNone of the listed physical situations

Question 30

A student is deciding how to begin the “Cutting block” situation. What is the best first move?

ASubstitute numbers before identifying the modelBIdentify the relevant Topic 8.1 concept/relationship and its assumptionsCIgnore units and directionsDUse every formula in the unit

Question 31

In Topic 8.1, analyze this situation: Steel ship floats. Which conclusion is most consistent with the physics?

AThe higher-density material has greater mass.BMass and volume halve, but density remains unchanged.CIts total mass divided by large enclosed volume gives an average density compatible with buoyancy.DThere is not enough information to use any Topic 8.1 idea

Question 32

Which Topic 8.1 worked example best illustrates this reasoning: “Its total mass divided by large enclosed volume gives an average density compatible with buoyancy”?

ACutting blockBHollow shipCWood vs metalDNone of the listed physical situations

Question 33

A student is deciding how to begin the “Hollow ship” situation. What is the best first move?

ASubstitute numbers before identifying the modelBIdentify the relevant Topic 8.1 concept/relationship and its assumptionsCIgnore units and directionsDUse every formula in the unit

Question 34

In Topic 8.1, a student claims: “A larger object always has greater density.” Which correction is best?

AThe claim is always correctBDensity is a ratio, independent of sample size for uniform material.CThe claim becomes correct if all numbers are positiveDThe claim cannot be checked experimentally

Question 35

Which statement should replace this misconception in a Topic 8.1 solution: “A larger object always has greater density.”?

ADensity is a ratio, independent of sample size for uniform material.BKeep the misconception because it is a definitionCIgnore the physical model and compare only unitsDThe opposite of the misconception is always numerically zero

Question 36

In Topic 8.1, a student claims: “Cutting a material changes its density.” Which correction is best?

AThe claim is always correctBFor uniform material, m and V change proportionally.CThe claim becomes correct if all numbers are positiveDThe claim cannot be checked experimentally

Question 37

Which statement should replace this misconception in a Topic 8.1 solution: “Cutting a material changes its density.”?

AFor uniform material, m and V change proportionally.BKeep the misconception because it is a definitionCIgnore the physical model and compare only unitsDThe opposite of the misconception is always numerically zero

Question 38

In Topic 8.1, a student claims: “Density and weight are the same.” Which correction is best?

AThe claim is always correctBDensity is mass per volume; weight is gravitational force.CThe claim becomes correct if all numbers are positiveDThe claim cannot be checked experimentally

Question 39

Which statement should replace this misconception in a Topic 8.1 solution: “Density and weight are the same.”?

ADensity is mass per volume; weight is gravitational force.BKeep the misconception because it is a definitionCIgnore the physical model and compare only unitsDThe opposite of the misconception is always numerically zero

Question 40

What should a student identify before calculating in Topic 8.1?

AOnly the final numerical answerBCalculate density, compare materials, use volume/mass relationships, and reason about how internal structure affects average density.COnly whether the quantity is positiveDEvery equation on the reference sheet

Question 41

Which statement best describes the AP Physics 1 scope for Topic 8.1?

AThe topic has no defined scopeBDensity provides the foundation for pressure and buoyancy in Topics 8.2–8.3.CCalculus is required for every questionDOnly memorized numerical values are assessed

Question 42

Which study sequence best matches this Topic 8.1 lesson?

AFormula first → ignore meaning → memorize answerBDefinition → physical model → real examples → equation conditions → reasoning/practiceCPractice only → skip definitions and examplesDSearch a different page for every unfamiliar term before continuing

How much AP Physics 1 MCQ practice is available?

Choose the exact AP Physics 1 topic

Internal Structure and Density Practice

A sample has mass 6 kg and volume 0.003 m³. What is its density?

Two objects have the same mass. Object A has twice the volume of B. How do their densities compare?

A material has density 800 kg/m³. What mass occupies 0.050 m³?

Two equal-density cubes with one twice the volume have mass ratio 2:1. Which Topic 8.1 concept most directly explains this physical situation?

Which statement best defines Uniform material in Topic 8.1?

A second situation is observed: Cutting a uniform block in half leaves the material density unchanged. Which concept is being applied?

A hollow ship has average density low enough to float despite dense steel walls. Which Topic 8.1 concept most directly explains this physical situation?

Which statement best defines Average density in Topic 8.1?

A second situation is observed: A foam block’s air spaces lower its average density. Which concept is being applied?

Compressed gas has greater density because same mass occupies smaller volume. Which Topic 8.1 concept most directly explains this physical situation?

Which statement best defines Microscopic structure in Topic 8.1?

A second situation is observed: Thermal expansion can lower density if mass stays fixed while volume grows. Which concept is being applied?

Oil floats on water because its density is lower. Which Topic 8.1 concept most directly explains this physical situation?

Which statement best defines Specific comparison in Topic 8.1?

A second situation is observed: A dense rock sinks in water if its average density exceeds water’s. Which concept is being applied?

Which relationship best represents this Topic 8.1 idea: Density definition?

In Topic 8.1, which variable-and-unit description belongs with ρ = m/V?

For Topic 8.1, consider this real application: 2 kg occupying .001 m³ has 2000 kg/m³. Which relationship supports that result?

Which relationship best represents this Topic 8.1 idea: Find mass from density and volume?

In Topic 8.1, which variable-and-unit description belongs with m = ρV?

For Topic 8.1, consider this real application: Water volume .002 m³ has mass about 2 kg. Which relationship supports that result?

Which relationship best represents this Topic 8.1 idea: Find volume?

In Topic 8.1, which variable-and-unit description belongs with V = m/ρ?

For Topic 8.1, consider this real application: 1 kg water occupies .001 m³. Which relationship supports that result?

In Topic 8.1, analyze this situation: Equal-volume blocks are compared. Which conclusion is most consistent with the physics?

Which Topic 8.1 worked example best illustrates this reasoning: “The higher-density material has greater mass”?

A student is deciding how to begin the “Wood vs metal” situation. What is the best first move?

In Topic 8.1, analyze this situation: Uniform block is cut in half. Which conclusion is most consistent with the physics?

Which Topic 8.1 worked example best illustrates this reasoning: “Mass and volume halve, but density remains unchanged”?

A student is deciding how to begin the “Cutting block” situation. What is the best first move?

In Topic 8.1, analyze this situation: Steel ship floats. Which conclusion is most consistent with the physics?

Which Topic 8.1 worked example best illustrates this reasoning: “Its total mass divided by large enclosed volume gives an average density compatible with buoyancy”?

A student is deciding how to begin the “Hollow ship” situation. What is the best first move?

In Topic 8.1, a student claims: “A larger object always has greater density.” Which correction is best?

Which statement should replace this misconception in a Topic 8.1 solution: “A larger object always has greater density.”?

In Topic 8.1, a student claims: “Cutting a material changes its density.” Which correction is best?

Which statement should replace this misconception in a Topic 8.1 solution: “Cutting a material changes its density.”?

In Topic 8.1, a student claims: “Density and weight are the same.” Which correction is best?

Which statement should replace this misconception in a Topic 8.1 solution: “Density and weight are the same.”?

What should a student identify before calculating in Topic 8.1?

Which statement best describes the AP Physics 1 scope for Topic 8.1?

Which study sequence best matches this Topic 8.1 lesson?

Need help understanding your data?