Refraction

What happens to light waves when they pass from one medium to another?

• They change color

• They change direction

• They speed up without changing direction

• They disappear

Why do waves travel at different speeds in different materials?

• Because of the height of the material

• Because of the color of the material

• Because of the temperature of the material

• Because different materials have different densities

What happens to a wave as it passes into a more dense medium?

• It stops

• It slows down

• It maintains its speed

• It speeds up

If a wave hits the boundary between two materials at an angle, what occurs?

• It will create a new wave

• It will reflect back

• It will be refracted

• It will be absorbed

When light passes into a more dense medium, how does it bend?

• Away from the normal

• Towards the normal

• In a circular pattern

• It does not bend

What is the first step in drawing a ray diagram for refraction?

• Drawing the normal

• Drawing the emergent ray

• Drawing the incident ray

• Drawing the refracted ray

What happens to the wave as it passes from a more dense to a less dense medium?

• It bends towards the normal

• It bends away from the normal

• It stops moving

• It disappears

What remains constant when a wave changes speed due to refraction?

• Frequency

• Speed

• Wavelength

• Amplitude

If the speed of a wave increases, what else increases?

• Frequency

• Density of the medium

• Wavelength

• The angle of incidence

What happens when white light passes through a triangular prism?

• It turns into a single color

• It spreads out like a rainbow

• It slows down

• It speeds up