Apologia Physical Science Module 9 Study Guide

A wave in which the medium vibrates at right angles to the direction the wave travels

• Mechanical wave
• Surface wave
• Doppler effect
• Supersonic wave
• Transverse wave

A change in sound frequency caused by the motion of the sound source, motion of the listener, or both

• Mechanical wave
• Pitch
• Transverse wave
• Doppler effect
• Supersonic speed

An indication of how high or low a sound is, which is primarily determined by the frequency of the sound wave

• Doppler effect
• Longitudinal wave
• Pitch
• Supersonic wave
• Mechanical wave

A disturbance in matter that transfers energy through the matter

• Supersonic speed
• Pitch
• Mechanical wave
• Surface wave
• Doppler effect

Tags

NGSS.MS-PS4-2

NGSS.MS-PS4-1

A wave in which the vibration of the medium is parallel to the direction the wave travels

• Longitudinal speed
• Supersonic speed
• Pitch
• Surface wave
• Doppler effect

A wave that travels along the surface of a medium

• Doppler effect
• Surface Wave
• Pitch
• Supersonic speed
• Mechanical wave

Tags

NGSS.MS-PS4-2

NGSS.MS-PS4-1

Any speed that is faster than the speed of sound in the medium of interest

• Transverse wave
• Longitudinal wave
• Mechanical wave
• Supersonic speed
• Doppler effect

Tags

NGSS.HS-PS4-1

In designing a car's horn, the engineers test the sound of the horn and decide that its pitch is too low. To adjust the horn, should the engineers change the electronics so as to produce sound waves with longer or shorter wavelengths?

• longer
• shorter

A sound wave is traveling through air with a temperature of 30 °C. What is the speed of the sound wave?

• 349.5 m/s
• 449.5 m/s
• 549.5 m/s

Tags

NGSS.MS-PS4-2

If the sound wave in problem 3 has a wavelength of 0.5 meters, what is its frequency?

• 499 Hz
• 599 Hz
• 699 Hz

Tags

NGSS.HS-PS4-1