Light Energy

Front

What is light energy?

Back

Light energy is a form of energy that travels in waves and can be seen by the human eye.

Front

Why does an apple look red?

Back

An apple looks red because it reflects red light and absorbs all other colors.

Front

How is light energy transmitted?

Back

Light energy is transmitted as waves.

Front

What is the principle that explains why a straw looks broken in water?

Back

This is an example of refraction, which occurs when light travels from one medium to another and changes speed.

Front

What does a prism do?

Back

A prism bends light and can separate it into different colors, forming a rainbow.

Front

What is reflection?

Back

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

Front

What is refraction?

Back

Refraction is the bending of light as it passes from one medium to another, like from air to water.

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.

Front

What happens to light when it hits a mirror?

Back

When light hits a mirror, it reflects back at the same angle it hit the surface.

Front

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

Back

Transparent materials allow light to pass through clearly, translucent materials allow some light to pass but not clearly, and opaque materials do not allow light to pass through.