AP Physics 1 FRQ Practice by Topic 2027
Choose a topic to practice four original free-response prompts: Mathematical Routines, Translation Between Representations, Experimental Design & Analysis, and Qualitative/Quantitative Translation.
How much AP Physics 1 FRQ practice is available?
There are 4 original free-response questions for each of the 43 official AP Physics 1 topics, giving 172 topic FRQs across the four current AP response modes.
- 43 topic banks.
- 4 FRQs per topic.
- 172 topic FRQs total.
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.
Internal Structure and Density FRQ Set
Write a complete response before opening the reasoning guide. The four prompts deliberately use different response modes.
A physical system is described by this Topic 8.1 situation: Equal-volume blocks are compared.
- (a) State the physical model and identify the system, reference point/axis, or sign convention needed before calculation.
- (b) Starting from ρ = m/V, derive or calculate the requested quantity symbolically before substituting numerical values when possible.
- (c) State the SI unit and explain whether the sign or magnitude of the result is physically reasonable.
- (d) Identify one assumption or condition that must be true for the relationship you used.
Reasoning and scoring guide
- Part (a): identifies the correct system/model and necessary convention.
- Part (b): uses ρ = m/V consistently and shows an algebraic pathway rather than an unsupported answer.
- Part (c): gives the correct SI unit and interprets sign/magnitude in the physical context.
- Part (d): states a valid condition from the Topic 8.1 scope. Expected physical conclusion: The higher-density material has greater mass.
Consider this Topic 8.1 situation: Uniform block is cut in half.
- (a) Draw or describe the most useful representation for the situation: a graph, vector/force/torque diagram, energy or momentum bar chart, motion representation, or fluid schematic as appropriate.
- (b) Label the quantities and directions that carry physical meaning in the representation.
- (c) Translate the representation into one or more equations or proportional relationships.
- (d) Use the representation to predict how the result changes if one physically relevant parameter is increased while the others are held fixed.
Reasoning and scoring guide
- Part (a): chooses a representation that directly exposes the Topic 8.1 model rather than a decorative sketch.
- Part (b): labels relevant signs, directions, axes, energy stores, momentum vectors, or fluid quantities.
- Part (c): connects the representation to a valid relationship such as m = ρV.
- Part (d): makes a correct parameter-change prediction and justifies it from the representation/equation. Expected core reasoning: Mass and volume halve, but density remains unchanged.
Design a feasible classroom investigation of a relationship from Topic 8.1, using ρ = m/V as the starting model.
- (a) State a testable question and identify the independent and dependent variables.
- (b) Describe equipment, what is measured directly, and at least two important control variables.
- (c) Describe repeated trials and one method for reducing or estimating measurement uncertainty.
- (d) Specify the graph to plot, including transformed/linearized axes if useful, and state what feature of the graph would support the model.
- (e) Name one realistic source of systematic error and state how it would bias the result.
Reasoning and scoring guide
- Part (a): varies one physically relevant quantity and measures a response predicted by the model.
- Part (b): gives measurable quantities and controls parameters that otherwise change the predicted relationship.
- Part (c): uses repeated measurements and an explicit uncertainty/reliability method.
- Part (d): proposes a graph whose slope/intercept/shape can be compared with ρ = m/V.
- Part (e): identifies a concrete systematic effect and predicts its direction of bias rather than merely saying “human error.”
Use this Topic 8.1 situation: Steel ship floats.
- (a) Make a qualitative prediction before calculating and identify the physical principle behind it.
- (b) Use a Topic 8.1 relationship to support the prediction quantitatively or proportionally.
- (c) A student claims, “A larger object always has greater density.” Evaluate the claim and correct it using the same physical model.
- (d) State a limiting case or boundary condition that provides an independent check on your conclusion.
Reasoning and scoring guide
- Part (a): states a defensible prediction and names the governing principle.
- Part (b): connects the prediction to a correct equation/proportionality with defined quantities.
- Part (c): rejects the misconception for the right reason: Density is a ratio, independent of sample size for uniform material.
- Part (d): uses a physically meaningful limit or scope condition to check consistency. Expected situation conclusion: Its total mass divided by large enclosed volume gives an average density compatible with buoyancy.