Sound Waves Test 2025

The complete back-and-forth motion of an object is called a(n) ______________________.

• Compression

• Rarefaction

• Vibration

• Medium

In a(n) ______________________ the particles in the air are closer together than in the surrounding air.

• Vibration

• Compression

• Rarefaction

• Medium

Tags

NGSS.MS-PS4-1

In a(n) ______________________, the particles in the air are less crowded than in the surrounding air.

• Compression

• Rarefaction

• Medium

• Vibration

Longitudinal waves that are caused by vibrations and that travel through a medium are called _______.

• Light Waves

• Mechanical Waves

• Sound Waves

• Chemical Waves

Air does not travel with sound waves. But what would happen at the school dance if air did travel with sound?

• Nothing at all.

• You could be blown off the stage

As sound waves leave their source, in what direction do they travel? ____________________________

• All Directions

• Same Directions

• No Direction

• To the left

A substance through which a wave can travel is a(n) ______________________.

• Vibration

• Compression

• Rarefaction

• Medium

Tags

NGSS.MS-PS4-2

Why is there no sound in a vacuum?

• No Waves

• No Medium

• No Vibrations

• No Air

After your ears convert sound waves into electrical signals, where are the signals sent for interpretation?

• Pinna

• Spinal cord

• Brain

• Oval Window

Ear Canal

• A

• G

• E

• B