Science 8 - Unit 3 Review B

Cellular phones transmit and receive signals using infrared radiation.

• True

• False

Electromagnetic radiation is a form of energy.

• True

• False

When an object is twice its original distance from a light source, it will receive one half of the light.

• True

• False

High frequency waves have a short wavelength.

• True

• False

The photoelectric effect occurs with blue light, but not red light.

• True

• False

The particle model of light states that light travels in packets of energy called photons.

• True

• False

A very smooth surface reflection produces a clear image of an object.

• True

• False

Light energy is easily absorbed by snow and ice.

• True

• False

A blue coat is blue because only blue light waves are being absorbed by the material.

• True

• False

If light can travel through a material, the material is called a medium.

• True

• False