Reflection and Refraction

Front

What is reflection?

Back

Reflection is when light bounces off a surface, such as a mirror or water.

Front

What is refraction?

Back

Refraction is when light bends as it passes from one medium to another, like from air to water.

Front

Why does a straw look bent in a glass of water?

Back

The light rays are refracted when they move from water to air, making the straw appear bent.

Front

What happens to light when it hits a mirror?

Back

The light is reflected, allowing us to see our image in the mirror.

Front

What is the law of reflection?

Back

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

Front

What is a medium in terms of light?

Back

A medium is a substance through which light travels, such as air, water, or glass.

Front

What is the difference between reflection and refraction?

Back

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

Front

What is total internal reflection?

Back

Total internal reflection occurs when light hits a boundary at a steep angle and is completely reflected back into the medium.

Front

How does a hand lens work?

Back

A hand lens works by refracting light to make objects appear larger.

Front

What is the speed of light in a vacuum?

Back

The speed of light in a vacuum is approximately 299,792 kilometers per second.