Sound waves

If you want to change the pitch of a sound, you have to change the ___

• frequency
• amplitude
• speed
• volume

This is what you get when sound waves are reflected, or bounce back, off of a hard surface.

• Amplitude
• Pitch
• Volume
• Echo

Tags

NGSS.MS-PS4-2

The speed of a sound wave depends on

• the frequency
• the medium
• both air temperature and medium
• the air temperature

What is a pitch?

• highness or lowness of a sound
• the intensity of a vibration
• the amplitude of the sound wave
• volume of sound

When a sound is louder what measurement gets bigger?

• Frequency 
• Amplitude 
• Wavelength 
• Crest

Tags

NGSS.MS-PS4-1

Why is the school library covered with carpet?

• So everyone can make a lot of noise
• to help absorb sounds to keep it quiet
• because it looks good
• to help absorb sounds so it can stay noisy

Tags

NGSS.MS-PS4-2

Sound is made when a source of energy forces the matter to _________.

• shake

• vibrate

• move

• stay still

Sound waves cannot travel through _________.

• paper

• milk

• hydrogen

• empty space

Tags

NGSS.MS-PS4-2

In which of these types of media will sound travel fastest?

• solid

• liquid

• gas

• vacuum

Tags

NGSS.MS-PS4-2

Frequency of waves is measured in __________.

• hertz

• decibels

• watts

• meters/second

Tags

NGSS.HS-PS4-1