CP5a Electromagnetic Waves REVISIT

Question 1

What type of waves are electromagnetic waves?

Answer 1

Transverse

Question 2

In a vacuum all waves travel at…

Answer 2

The same speed

Question 3

A human’s eyes can detect certain frequencies of light. These frequencies are called

Answer 3

Visible light

Question 4

Different frequencies cause us to see… (Visible light)

Answer 4

Different colours

Question 5

Lower frequencies of visible light appear more r____ and higher frequencies appear more b_____ . (Visible light)

Answer 5

red

blue

Question 6

Electromagnetic waves with frequencies that are a little higher than visible light are called

Answer 6

Ultraviolet

Question 7

All objects emit energy by

Answer 7

infrared radiation