PS Unit 3 Test

What is a wave?

• A) A repeating disturbance that transfers energy through matter or space

• B) A stationary object that does not move

• C) A solid object that reflects light

• D) A type of sound wave.

In a longitudinal wave, matter in the medium moves back and forth along the direction that the wave travels. This is an example of a ______ wave.

• Transverse

• Longitudinal

• Surface

• Electromagnetic

What is the function of the outer ear?

• To interpret sound

• To funnel sound into the ear canal

• To amplify vibrations

• To control balance

The inner ear contains the ______ organ, which controls balance.

• cochlea

• vestibular

• auditory

• hammer

What does the amplitude of a wave determine?

• Frequency

• Energy

• Loudness

• Pitch

The Doppler effect is a change in _______ because a wave source is moving.

• amplitude

• loudness

• pitch

• intensity

Tags

NGSS.HS-PS4-1

What is resonance in the context of music?

• The ability of a medium to vibrate by absorbing energy at its natural frequency.

• The difference in pitch and loudness among sounds.

• A vibration with a frequency that is a multiple of the fundamental frequency.

• The natural frequency at which an item vibrates.

Tags

NGSS.MS-PS4-1

Fill in the blank: An overtone is a vibration with a frequency that is a _______ of the fundamental frequency.

• multiple

• fraction

• equal

• opposite

Tags

NGSS.HS-PS4-1

What is the study of sound called?

• Sonar

• Echolocation

• Acoustics

• Ultrasound

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Echolocation is used by bats, dolphins, and whales to locate objects by making sounds and interpreting the sounds that are bounced back. Which of the following is NOT a use of echolocation?

• Locating objects underwater

• Navigating in the dark

• Breaking up kidney stones

• Finding prey