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AP Physics 2: Algebra-Based Practice Quiz: Properties of Wave Pulses and Waves

Written by AP Content Team, Verified for 2026 AP Exams, Last updated: May 2026

Test your understanding with short quizzes. This quiz has 10 questions to check your progress.

Question 1 of 10

Which of the following statements best describes the primary function of a wave?

All Questions (10)

Which of the following statements best describes the primary function of a wave?

A) To transfer matter from a source to a destination.

B) To transfer energy between two locations without transferring matter.

C) To change the properties of the medium through which it travels.

D) To create a permanent disturbance in a medium.

Correct Answer: B

According to the provided content, waves are defined as a mechanism that transfers energy between two locations without transferring the matter between those locations.

A student quickly flicks one end of a long, stretched rope, creating a single hump that travels to the other end. This single hump is best described as a:

A) Mechanical wave

B) Electromagnetic wave

C) Wave pulse

D) Medium transfer

Correct Answer: C

The content defines a wave pulse as a single disturbance that transfers energy. A quick flick of a rope creates such a single disturbance, not a continuous wave.

A radio signal is sent from a satellite orbiting Earth to a receiver on the ground. Which statement correctly classifies this signal and its requirement for propagation?

A) It is a mechanical wave and requires the atmosphere as a medium.

B) It is an electromagnetic wave and does not require a medium.

C) It is a mechanical wave and does not require a medium.

D) It is an electromagnetic wave and requires the vacuum of space as a medium.

Correct Answer: B

The signal travels through the vacuum of space, which lacks a medium. The content states that electromagnetic waves do not require a medium in which to propagate, making this the correct classification.

The speed of sound is significantly faster in solid steel than it is in air. Which of the following principles best explains this phenomenon?

A) Sound is a type of electromagnetic wave.

B) Waves transfer matter more quickly in denser materials.

C) The speed at which a wave propagates depends on the properties of the medium.

D) A wave pulse always travels faster than a continuous wave.

Correct Answer: C

Sound is a mechanical wave. The provided content states that the speed of a wave depends on the properties of the medium. Steel and air are different media with different properties, which accounts for the difference in the speed of sound.

What is the fundamental difference between a mechanical wave and an electromagnetic wave?

A) Mechanical waves transfer energy, while electromagnetic waves transfer matter.

B) Mechanical waves require a medium to propagate, while electromagnetic waves do not.

C) Mechanical waves are always single pulses, while electromagnetic waves are always continuous.

D) The speed of mechanical waves is constant, while the speed of electromagnetic waves depends on the medium.

Correct Answer: B

The content explicitly states that mechanical waves require a medium in which to propagate, whereas electromagnetic waves do not.

A wave pulse is sent down a taut string. If the string is replaced with a new string made of a denser material but kept under the same tension, what is the most likely effect on the speed of the pulse?

A) The speed will remain the same because the type of wave has not changed.

B) The speed will change because the properties of the medium have been altered.

C) The speed will increase because denser materials always allow for faster energy transfer.

D) The speed cannot be determined without knowing if it's a mechanical or electromagnetic pulse.

Correct Answer: B

The string is the medium for the wave pulse. According to the content, the speed of a wave depends on the properties of the medium. Changing the string's material (density) alters the medium's properties, which will in turn change the speed of the pulse.

Which of the following is an example of a phenomenon that requires a medium in which to propagate?

A) Light from a star traveling to Earth

B) A microwave heating food

C) The sound of a bell ringing

D) An X-ray creating a medical image

Correct Answer: C

Sound is a mechanical wave, which, according to the content, requires a medium (like air, water, or a solid) to propagate. Light, microwaves, and X-rays are all forms of electromagnetic waves that do not require a medium.

A cork is floating on the surface of a pond. As a wave passes, the cork bobs up and down but returns to its approximate original position after the wave has passed. This observation is direct evidence that:

A) The wave is electromagnetic.

B) The wave transfers energy without a net transfer of matter.

C) The speed of the wave is dependent on the water's temperature.

D) The wave is a single pulse, not a continuous wave.

Correct Answer: B

The cork, which represents a particle of the medium (matter), oscillates in place but is not carried along with the wave. This demonstrates the key principle that waves transfer energy between locations without transferring matter.

Two wave pulses are generated. Pulse 1 travels through a vacuum, and Pulse 2 travels through a steel rod. Which of the following classifications must be correct?

A) Pulse 1 is mechanical, and Pulse 2 is electromagnetic.

B) Both pulses are mechanical.

C) Pulse 1 is electromagnetic, and Pulse 2 is mechanical.

D) Both pulses are electromagnetic.

Correct Answer: C

The content states that electromagnetic waves do not require a medium and can travel through a vacuum, so Pulse 1 must be electromagnetic. Mechanical waves require a medium, such as the steel rod for Pulse 2. Therefore, Pulse 2 must be mechanical.

The speed of a wave or wave pulse is determined by:

A) The amount of energy it carries.

B) The size of the disturbance that created it.

C) The type of wave and the properties of the medium.

D) Whether it is transferring matter or energy.

Correct Answer: C

This question directly tests the principle stated in the content: 'The speed at which a wave or wave pulse propagates through a medium depends on the type of wave and the properties of the medium.'