Sound STW

vibrations that travel through the air or another medium and can be heard when they reach a person's or animal's ear.

• Sound

• Wavelength

• pitch

• frequency

Which of the following does sound depend on?

• type of medium

• distance to the medium

• height of the medium

• vibration of the medium

When you make sounds by plucking a rubber band, you make the rubber band move back and forth very quickly.  This movement is called.

• loudness

• amplitude

• pitch

• vibration

Which of the following would produce the loudest sound?

• jet plane

• pin falling

• doorbell

• whisper

How is sound produced by these instruments?

• Striking the surface

• vibrating columns of air

• plucking the strings

Ears help you keep your balance:

• True

• False

The ear does which of the following jobs:

• Collects sound

• Processes sound

• Sends sound signals to the brain

• All of the above

Which of the following is a good way to take care of your ears?

• Wear earplugs at loud music concerts

• Don’t poke your ears with cotton swabs

• Keep the volume down on your music player

• All of the above

This is the unit used to measure the volume of a sound. 

• Decibel

• Vibration

• Medium

• Oscilloscope

Sound travels FASTEST through which of these materials?

• A type of gas, like helium

• A metal such as iron

• Empty space

• Water