What is Light + Light Sources

Front

What is a wave?

Back

A wave is a disturbance that transfers energy from one point to another without transferring matter.

Front

Light is _____ and ______.

Back

Wave and particles.

Front

What is a Medium?

Back

Any physical substance (air,

water, dust) that acts as a carrier for the

transmission of energy.

Front

Sound travels through _____

Water waves travel through _____

A rope or slinky can be a medium for _____

Back

Sound travels through air particles

Water waves travel through water

A rope or slinky can be a medium for waves

Front

The term electromagnetic is used to describe.....?

Back

Used to describe light because light is made up of oscillating electric and magnetic fields.

Front

How fast is light?

Back

c = 3 x 10⁸

^{metres per second (m/s)}

Front

What distinguishes colours of light?

Back

The different wavelengths of light.

Front

What are these colours called?

Back

A SPECTRUM.

Front

What is white light made up of?

Back

Red, Orange, Yellow, Green, Blue, Indigo, and Violet

(ROY G BIV is the mnemonic)

Front

What 3 primary colours can produce white light?

Back

Red, Green, Blue