a disturbance that carries energy from place to place.
what is a wave?
When one medium ends, another medium begins; the interface of the two media
what is Boundary Behavior?
This the rate at which work is done
what is power?
Some waves MUST have a medium in order to move.
what are mechanical waves?
The bending of waves AROUND an object
what is Diffraction?
the unit that power is measured
What is Watts
transfer of energy in a motion that is perpendicular to the direction the wave is traveling.
What is a Transverse Wave?
a transparent, curved piece of glass or plastic that focuses light rays to a single point
What is convex lenses?
when a wave enters a new medium and its SPEED CHANGES
what is Refraction?
This happens to power when you increase the amount of work done.
What is increasing your power
Some waves do not need matter to be able to move
What are electromagnetic waves
the angle at which light hits a smooth surface is equal to the angle at which it bounces off
What is the law of reflection?
This happens to power when you increase time.
What is decreasing power
sunlight interacts with raindrops, causing light to refract (bend) and reflect, separating white light into its constituent colors
what is a rainbow?
when a wave encounters the end of a medium that is free to move, resulting in the reflected wave having the same orientation (not inverted) as the incident wave
what is free end reflection?
If I do 2000 Joules of work in 5 seconds, I produce this amount of power.
What is 400 watts.