SNC2D - Light and Geometric Optics Unit Review

The Law of Reflection:
The angle of incidence is _________ the angle of reflection

• bigger than
• the same as
• smaller than

Why does white light look like a rainbow when it exits a prism?

• The prism adds more kinds of light.
• The prism changes some white light into electricity.
• The prism is filled with many different colors.
• The prism separates white light into its component colors.

The full spectrum of light energy is called the__________

• broad spectrum
• electromagnetic spectrum
• helium spectrum 
• natural light spectrum

What happens to light when it strikes a mirror?

• it reflects
• it bounces off
• it absorbs 
• it makes a shadow

Visible light is ...

• Light bulb
• sun
• light that we can see with our natural eye
• fire

Light travels in a straight line

• True
• False

Light is a type of energy that travels as an ______________ ____________.

• longitudinal wave
• electric current
• electromagnetic wave
• magnetic wave

What is the major source of energy on Earth?

• EM waves from the sun
• photosynthesis
• fossil fuels
• plants that are used as food

Ultraviolet light waves are responsible for causing

• heat strokes
• blue skies
• interference of radio waves
• sunburn, and vitamin D production

The part of the electromagnetic spectrum that human sees is

• ultraviolet light.
• visible light.
• infrared light.
• x-ray.