Vocabulary
What is rapid back and fourth movement
Vibration
Sound moves through this in waves
Matter
The squeezed-together part of a wave
Compression
Sound waves carry matter from place to place
False
More cars pass the bridge in the same time. what changed? The speed, the matter or the frequency
Frequency
A disturbance that moves energy from place to place
Wave
Matter can be a soild, liquid, or this
Gas
The spread-out part of a wave
Rarefaction
You hear sound because particles vibrate
True
Cars slow down from 50 km to 30km what changed? The speed, the direction of travel or the frequency
Speed
A vibration that can be heard
Sound
Most of the sounds we hear travel through matter, it is called
Air
This can be measured from compression to compression
wave length
Sound travels slowest through soilds
False ( slowest in gases )
Name all three states of matter sound can travel
Solids, liquid, and gases
The number of waves that pass a point in one second
Frequency
Because sound travels through matter, it is called this type of wave
Mechanical wave
A spring toy is often used to model this kind of wave
Sound wave
Sound waves travel away from the source in all directions
True
What must something do to make sound
Vibrate
The distance from one compression to the next
Wave length
In a sound wave, particles vibrate in this direction compared to the energy movement
Same direction
Do particles travel with the wave
No
An oscilloscope shows pictures of sound waves
True
What tool turns sound waves into electrical pictures
Oscilloscope