What is the name of a line drawn at 90° to the surface of a material?
Boundary
Incident
Normal
Which term is used to refer to an incoming ray?
Refracted
What is the law of reflection?
Angle of incidence = angle of reflection
Angle of incidence \(\textless\) angle of reflection
Angle of incidence > angle of reflection
What angle would a light ray reflect at, if it hits a mirror at 24° to the normal?
0° (along the normal)
66°
24°
Which wave type can be refracted?
Transverse waves
Longitudinal waves
All waves
What word describes a change in wave direction passing through an interface between media?
Absorption
Refraction
Reflection
What happens to a water wave when it travels from shallow water into deep water? - Higher
It changes direction towards the normal
It slows down
It changes direction away from the normal
Which word is used to describe wave energy passing through a material?
Transmitted
Absorbed
Reflected
When a wave passes into a slower medium, what happens to its wavelength? - Higher
Reduces
Increases
No change
Which light wavelengths pass better through glass? - Higher
Longer wavelengths like infrared
Shorter wavelengths like ultraviolet
All wavelengths pass well