Show:
waves
reflection
wave phenomena
light
refraction
100

What do waves transfer?

Energy

100

True or false: When light reflects off of a surface, the angle of incidence is equal to the angle of reflection.

True

100

What term describes the variations in the observed frequency of a sound wave when there is relative motion between the source and the receiver?

Doppler effect

100

What type of wave is light?

Electromagnetic wave
100

What is refraction?

The change of direction of a wave due to a change in its speed when crossing a media boundary.

200

What happens to the particles of a medium as a transverse wave moves across it?

The particles move up and down before returning to their original position
200

If the incident angle of a reflected ray of light is 49 degrees, what is the reflected angle?

49 degrees

200

What happens when two waves travel through the same medium simultaneously?

Interference (also known as superposition)

200

What is the speed of all waves in the electromagnetic spectrum?

3.00x10⁸

200

Which has a greater index of refraction: Water or ethyl alcohol?

Ethyl alcohol

300

To increase the energy transmitted by a wave, what must increase?

Amplitude

300

Where is the angle of incidence always measured from?

the normal
300

Two waves that are in-phase with each other and have the same frequency and wavelength, and are travelling in the same direction in the same medium. What happens to these waves?

Constructive interference

300

True or false: Light cannot travel without a medium.

False

300
A ray of light in air is incident on a block of Lucite at an angle of 60 degrees from the normal. The angle of refraction of this ray in Lucite is closest to:

35 degrees

400

What is the period of a wave with a frequency of 250 hertz?

.004

400

A sound wave bounces off of a surface and creates an echo. This is an example of:

Reflection

400

What happens when a wave passes through a small gap in a barrier?

Diffraction

400

What is the typical range of wavelengths for an AM radio wave?

10² - 10³

400

A beam of monochromatic red light passes obliquely from air into water. Which characteristic of the light does not change?

Frequency
500

The wavelength of a wave of light is 3x10³ meters. What is the frequency of the wave?

1x10⁵ Hz

500

The angle between an incident ray and a reflected ray is 100 degrees. What is the angle of incidence?

50 degrees

500
An opera singer can shatter a glass by singing at the same frequency as the natural frequency of the glass. What is this phenomenon called?

Resonance

500

What is the frequency of a light wave having a wavelength of 5.00x10-7 meter in a vacuum?

6.00x1014 Hz


500

A ray of light traveling in air strikes a block of sodium chloride at an angle of incidence of 30 degrees. What is the angle of refraction for the light ray in the sodium chloride? 

19 degrees