Mechanical Waves
What are the two types of mechanical waves?
Transverse and longitudinal waves
What is it called when a wave hits a surface and bounces off?
Reflection
What is the measurement from crest to crest called?
Wavelength
If you increase frequency, what else do you affect and what happens to it?
Decrease Wavelength
What is an example of a longitudinal wave?
A slinky
Which wave travels perpendicular to the medium
transverse
Why does a fish look in a different spot under water than it actually is?
Refraction
What happens to sound waves that causes sound level to decrease when it hits carpets, curtains and other fabrics
The sound waves are absorbed
If you increase energy of a wave, what will decrease
Wavelength
If you increase the amplitude of a sound wave, what happens to sound?
It increases
which wave travels parallel to the medium?
longitudinal
What causes refraction to happen
Change in medium
What is the height of the wave called?
Amplitude
If light hits a surface and appears to "disappear" what is happening to it
it is being absorbed
If you change the medium of a wave, what else changes?
the speed
How do you measure wavelength of a longitudinal wave
compression to compression
What kind of surface allows some waves to travel through but not all?
Translucent
Which two wave properties indicate energy?
Amplitude and Frequency
How is frequency of a wave measured?
Waves per second
what decides if a wave can travel through a surface?
The material of the surface
Why is light not a mechanical wave?
It doesn't need a medium to travel through
After two waves interfere, what happens to them?
They go back to their original size
what wave property affects the brightness of a wave?
Amplitude
What is the formula for the speed of a wave
WL x Frequency
Why would astronauts use flashlights to communicate through space instead of trying to speak to each other
Because sound waves need a medium to travle through