Sound

The number of wavelengths that pass a point each per second is:

• frequency
• period
• longitudinal 
• transverse wave 

• Frequency
• Amplitude
• Wavelength
• Trough

• Trough
• Crest
• Amplitude
• Wavelength

• Crest
• Trough
• Height
• Frequency

Sound is caused by....

• molecules
• vibrations
• people
• space

Sound does not travel in space because

• Space is too far away.
• There is no matter in space.
• Space is the final frontier
• Space has planets.

What is vibration?

• how loud a sound is
• the back and forth movement of matter
• how high or low a sound is
• the loudness or softness of a sound

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

Measure of how high or low a sound is

• amplitude
• compression
• speed of sound
• pitch

What is volume?

• how high or low a sound is
• the loudness or softness of a sound
• the number of vibrations per second
• vibrations