examples: Radio broadcasting
examples: Getting rid of cancer
examples: Check for broken bones inside the body
Diagnose and treat cancer
Consists of changing electric and magnetic fields
The distance between the crests of waves
The number of waves that pass a particular piont in a certain amount of time
The energy transferred by electromagnetic waves
Electromagnetic waves with the shortest wavelengths and highest frequencies are
Regular and Diffuse
Two kinds of reflection
A copy of an object formed by reflected or refracted rays of light
Concave; convex, plane
A(n)________________ mirror can form real and virtual images. _________ and __________ mirrors form only virtual images.
Virtual and Real
Two types of images produced by mirrors
___________ reflection occurs when light hits an irregular surface.
____________ reflection occurs when light hits a smooth surface.
A(n)___________ image is formed when light rays meet.
The _______________ is an imaginary line that divides a mirror in half.
The________________ is the point at which light rays parallel to the optical axis meet.
A(n) ________________ image is right-side up.
A(n) _________________ mirror is a flat glass with silver colored coating on one side.
A(n) _________________ is an image of a distant object caused by light refraction through air of varying temperature.
A(n) _________________ is a curved piece of glass or other transparnet substance that is used to refract light.
A(n) _________________ lens is thicker in the center than at the edges.
A(n) _________________ lens is thinner in the center than at the edges.
The __________________ of refraction is a measure of how much a ray of light bends when it passes from one medium into another.
When waves bounce off a barrier
Electromagnetic waves are ______________ waves.
Height of a wave
Top of a wave
Bottom of a wave
Distance of one complete wave
Number of wave cycles in a given unit of time
Bending of light through a medium
German-American physicist 1879- 1955
Intervening substance that allows waves to pass
Density of a medium