Parts of waves
Located at the top of a wave
Crest
What is the equation for speed of a wave?
Velocity=(frequency)(Lambda)
What does high frequency mean?
It means high energy
How many laws are there?
3
( Reflection, Refraction, and Diffraction )
What is the Doppler effect?
An observed change in frequency when a source or observer is moving
Located at the bottom of the wave
Trough
How does the speed of a mechanical wave change?
It changes as the wave passes through different media
When does light travel the fastest?
In a vacuum
What is the law when light bounces off a flat surface and changes direction?
Reflection
When are sound waves compressed?
When the source moves towards the observer or observer hears a higher pitch
Located at the height of a wave from the middle to crest or trough
Amplitude
What are the units for velocity?
m/s
What is the equation for speed of light?
C=3x10^8 m/s
What is the law when light passes through a small boundary and forms waves on the other side?
Diffraction
When are sound waves stretched?
They are stretched when the source moves away from the observer and observer hears a lower pitch
Located at a distance from crest to crest or trough to trough; distance for one complete wave
Wavelength
What are the units for frequency?
Hz
When does light travel the slowest?
In a solid
What is the law when light passes from one substance to another and bends?
Refraction
With what does the Doppler effect occur?
It occurs with both light and sound
How many parts are located in a wave?
4 parts
( crest, trough, amplitude, and wavelength )
What are the units for lambda?
m
What are EM waves?
They are light waves at different frequencies
Reflection, Refraction, and Diffraction are three types of what?
Interference
Is an ambulance passing you on the road an example of a doppler effect?
Yes