Unit 07: Light Practice

Front

What is radiant energy?

Back

Radiant energy is the energy of electromagnetic waves, including visible light, that travels through space.

Front

What type of energy do solar panels convert sunlight into?

Back

Solar panels convert radiant energy from the sun into electrical energy.

Front

What type of waves does visible light travel in?

Back

Visible light travels in transverse waves.

Front

What is the difference between transparent, translucent, and opaque objects?

Back

Transparent objects allow light to pass through completely, translucent objects allow some light to pass through but scatter it, and opaque objects do not allow light to pass through.

Front

What effect does a mirror have on light?

Back

A mirror reflects light, changing its direction.

Front

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

Back

Light bends (refracts) when it passes from air into water.

Front

What is refraction?

Back

Refraction is the bending of light as it passes from one medium to another, changing its speed.

Front

What is reflection?

Back

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

Front

What is the role of a prism in light?

Back

A prism refracts light and can separate it into its component colors.

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 (or about 186,282 miles per second).