Question 1

What happens during reflection?

Accepted Answer

Waves bounce off a surface.

Answer

Waves are absorbed by the material.

Answer

Waves bend when changing medium.

Answer

Waves pass through an object.

Question 2

What does the law of reflection state?

Accepted Answer

Angle of incidence equals the angle of reflection.

Answer

Angle of incidence is smaller than the angle of reflection.

Answer

Light travels faster in a new medium.

Answer

Reflected waves always have lower energy.

Question 3

What causes refraction?

Accepted Answer

A change in wave speed when entering a new medium.

Answer

Waves traveling in a straight line.

Answer

Energy transfer to the material.

Answer

A wave bouncing off an obstacle.

Question 4

Which material is most likely to absorb light?

Accepted Answer

Black asphalt

Answer

Mirror

Answer

Snow

Answer

Glass

Question 5

What type of wave interference creates a larger wave?

Accepted Answer

Constructive interference

Answer

Destructive interference

Answer

Absorption

Answer

Reflection

Question 6

Where does destructive interference occur in standing waves?

Accepted Answer

Nodes

Answer

Crest

Answer

Trough

Answer

Antinodes

Question 7

What is resonance?

Accepted Answer

Increase in vibration amplitude when external vibrations match an object's natural frequency.

Answer

Absorption of waves by a surface.

Answer

Change in wave direction at a boundary.

Answer

Bouncing of waves from a material.

Question 8

Which wave phenomenon allows sound to travel around corners?

Accepted Answer

Diffraction

Answer

Reflection

Answer

Resonance

Answer

Refraction

Question 9

What happens to wavelength as frequency increases?

Accepted Answer

Wavelength decreases

Answer

Wavelength increases

Answer

Wavelength doubles

Answer

Wavelength stays constant

Question 10

What is the result when light enters water at an angle?

Accepted Answer

The light refracts and bends.

Answer

The light is absorbed completely.

Answer

The light reflects back.

Answer

The light travels in a straight line.

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