light energy vocabulary

Front

Which color has the shortest wavelength?

Back

Violet has the shortest wavelength in the visible light spectrum.

Front

What is light energy?

Back

Light energy is the energy that is visible to the human eye.

Front

What is the ultimate source of energy for Earth?

Back

The Sun is the ultimate source of energy.

Front

What happens during refraction?

Back

Refraction is when light bends as it passes from one medium to another.

Front

What does it mean to absorb light?

Back

To absorb light means to take in or soak up light energy.

Front

What color has the longest wavelength?

Back

Red has the longest wavelength in the visible light spectrum.

Front

What is reflection in terms of light?

Back

Reflection is when light bounces off a surface.

Front

What is a prism used for?

Back

A prism is used to separate white light into its component colors.

Front

What is the speed of light?

Back

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

Front

What is a shadow?

Back

A shadow is created when an object blocks light from a light source.