AP®︎ Physics 1: Topic 8.1 Practice Test

Prepare for your quiz, test, or the AP exam with focused practice questions on Topic 8.1 of AP Physics 1 – Internal Structure and Density.

Questions List

Topic 8.1

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Question 1 Easy

Figure
The diagram shows particles in a closed box. The short marks around the particles indicate vibration.

Which state of matter could the diagram represent, and why?
ASolid, because the particles vibrate about fixed positions.
BLiquid, because the particles are touching their neighbors.
CLiquid, because the particles vibrate and therefore can flow.
DSolid, because the particles remain completely motionless.

What You’re Being Tested On:

Explore the learning objectives taken directly from the College Board’s AP® Physics 1 Curriculum. Ensure you’re prepared for the exact topics covered on the AP® exam, in-class tests, and quizzes, and gain confidence in your mastery of the material.

Topic 8.1: Internal Structure and Density

Learning Objective: 8.1.A

Describe the properties of a fluid.

Essential Knowledge: 8.1.A.1

Distinguishing properties of solids, liquids, and gases stem from the varying interactions between atoms and molecules.

Essential Knowledge: 8.1.A.2

A fluid is a substance that has no fixed shape.

Essential Knowledge: 8.1.A.3

Fluids can be characterized by their density. Density is defined as a ratio of mass to volume. Relevant equation: ρ=mV\rho = \frac{m}{V}

Essential Knowledge: 8.1.A.4

An ideal fluid is incompressible and has no viscosity.

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