Electro Magnetic Spectrum

Question 1

What is the order of electro magnetic spectrum from a lower frequency and a longer wavelength?

Answer 1

Radio, Microwaves, Infrared, Visible light, Ultraviolet, X-rays, Gamma rays

Question 2

What are the uses and dangers of radio waves?

Answer 2

Uses: broadcast radio and television

Dangers: ?

Question 3

What are the uses and dangers of microwaves?

Answer 3

Uses: used in cooking, radar telephone and other signals

Dangers: skin burn

Question 4

What are the uses and dangers of infrared waves?

Answer 4

Uses: transmits heat from sun, fires, radiators and thermal imaging cameras

Dangers: felt as heat and causes skin to burn

Question 5

What are the uses and dangers of visible light?

Answer 5

Uses: makes things able to be seen

Dangers: can damage the retina at the back of the eye

Question 6

What are the uses and dangers of ultraviolet?

Answer 6

Uses: used in fluorescent tubes

Dangers: can damage skin cells and lead to skin cancer and damage the eyes

Question 7

What are the uses and dangers of X-rays?

Answer 7

Uses: used to view inside of the body and objects

Dangers: damage the cells inside the body

Question 8

What are the uses and dangers of gamma rays?

Answer 8

Uses: used in medicine for killing cancer cells and sterilise equipment

Dangers: can cause cancer