Sound Waves

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

• frequency
• amplitude
• speed
• volume

This is the UNIT used to measure the VOLUME or LOUDNESS of a sound. 

• Decibel
• Medium
• Vibration
• Oscilloscope

Answer explanation

High decibel sounds can damage your ears.

The speed of a sound wave depends on

• Temperature

• Elasticity

• Type of Medium

• Denisty

Tags

NGSS.MS-PS4-2

What is a pitch?

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

The number of wavelengths that pass a point each second

• frequency
• wavelength
• pitch
• amplitude

Answer explanation

A part in a longitudinal wave where the particles are spread apart

• compression
• rarefaction
• crest
• trough

The part of a longitudinal wave where the particles of the medium are close together.

• rarefaction
• compression
• crest
• trough

A disturbance that travels through a medium as a longitudinal wave

• sound
• wavelength
• pitch
• frequency

Tags

NGSS.MS-PS4-1

Material (matter) through which a wave travels

• medium
• Doppler Effect
• sound
• pitch

Answer explanation

Remember sound MUST travel in some medium, either solids, liquids or gases

Tags

NGSS.MS-PS4-2

When a sound is louder what measurement gets bigger?

• Frequency 
• Amplitude 
• Wavelength 
• Crest

Tags

NGSS.MS-PS4-1