What is frequency?

• the number of vibrations per second
• how high or low a sound is
• the loudness or softness of a sound
• the back and forth movement of matter

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

The number of waves that pass by each second.

• amplitude

• medium

• frequency

• trough

The distance between two peaks (tops) of a wave.

• wavelength

• frequency

• amplitude

• trough

How high or low a sound is.

• medium

• trough

• amplitude

• pitch

A substance that makes it possible for energy to transfer from one location to another, especially through waves.

• trough

• wave

• medium

• vibration

The lowest part of the wave.

• trough

• amplitude

• wavelength

• medium

Sound waves travel in all directions away from their source.

• True

• False

Sound waves can only travel through a medium.

• True

• False

Tags

NGSS.MS-PS4-2

Sound is caused by? 

• force
• vibrations
• instruments

What would happen if you tighten the strings on a guitar?

• it would make a low pitch sound
• it would make a high pitch sound
• it produces a slow vibrations
• it produces low frequency

Tags

NGSS.MS-PS4-1