Understanding Refraction

What is the term used to describe the bending of light as it enters a different medium?

• Reflection

• Diffraction

• Refraction

• Dispersion

Why does a spoon appear broken when placed in water?

• The spoon absorbs light

• Light refracts at the boundary of air and water

• Light reflects off the spoon

• The spoon is actually broken

What happens to light as it enters a glass block from air?

• It disappears

• It speeds up

• It changes direction

• It continues in a straight line

What is the effect called when light changes speed as it enters a different medium?

• Reflection

• Dispersion

• Refraction

• Diffraction

Which angle is equal to the angle of incidence when light exits a glass block into air?

• Angle of reflection

• Angle of refraction

• Angle of deviation

• Angle of emergence

What is the angle between the incident ray and the normal called?

• Angle of refraction

• Angle of incidence

• Angle of emergence

• Angle of deviation

In a refraction diagram, what is the line drawn at 90 degrees to the surface called?

• Refracted line

• Emergent line

• Incident line

• Normal line

What happens to light when it enters a denser medium?

• It bends away from the normal

• It bends towards the normal

• It travels faster

• It does not change direction

If light hits a surface at 90 degrees, what happens?

• It refracts

• It reflects

• It bends towards the normal

• It travels straight through

When light moves from a less dense to a more dense medium, what happens?

• It does not change direction

• It bends away from the normal

• It travels faster

• It bends towards the normal