Reflection, refraction, diffraction

Front

What is reflection in terms of light?

Back

Reflection is the bouncing back of light when it hits a surface.

Front

What is refraction?

Back

Refraction is the bending of a wave disturbance as it passes from one medium into another.

Front

What is diffraction?

Back

Diffraction is the bending of waves around obstacles and openings.

Front

Why do we see grass as green?

Back

Green light is reflected by the grass.

Front

What is a medium in the context of waves?

Back

A medium is the substance that a wave is passing through.

Front

What happens to light when it passes from air into water?

Back

Light bends when it passes from air into water.

Front

What is the principle behind sonar and echolocation?

Back

Sonar and echolocation use reflection to detect objects under water.

Front

What is the difference between reflection and refraction?

Back

Reflection is the bouncing back of light, while refraction is the bending of light as it passes through different media.

Front

What is an example of refraction in everyday life?

Back

A straw appearing bent when placed in a glass of water.

Front

What is the law of reflection?

Back

The angle of incidence is equal to the angle of reflection.