A rapid back and forth movement?

• Echo
• Vibrate
• Pitch
• Amplitude

Amplitude is used to measure what?

• Pitch
• Volume
• Sound
• Echoes

A sound with a low frequency and low amplitude would be....

• Loud with a high pitch
• Loud with a low pitch
• Quiet with a high pitch
• Quiet with a low pitch

We measure pitch in....

• Volume
• Decibles
• Amplitude
• Frequency

Energy that you can hear? 

• Sound
• Light 
• Heat 
• pitch

We measure sound in...

• Decimals
• Decibles
• Frequency 
• Amplitude

Sound travels fastest in...

• solids

• liquids

• gases

• air

An object that does not vibrate cannot produce

• sound
• light
• heat
• electricity

Sound waves travel the SLOWEST through _____________.

• gases
• solids
• liquids

Why is sound able to travel faster through a solid than a gas?

• Gas molecules are packed tightly.
• Sound does not travel faster through a solid than a gas.
• Solid molecules are packed tightly.
• Gas molecules move slowly.