3 Electromagnetic Waves

Question 1

What are the same about all electromagnetic waves?

Answer 1

Same speed - speed of light.

Question 2

What are the possible harmful effects of microwaves?

Answer 2

internal heating of body cells

Question 3

What are the possible harmful effects of infrared?

Answer 3

skin burns

Question 4

What are the possible harmful effects of UV?

Answer 4

damage to surface cells and eyes leading to skin cancer and eye conditions

Question 5

What are the possible harmful effects of X-rays and gamma rays?

Answer 5

mutation or damage to cells in the body that can cause cancer

Question 6

Which types of electromagnetic radiation is used for satellite transmission?

Answer 6

Microwaves and radiowaves

Question 7

What type of electromagnetic radiation is used for disinfecting water?

Answer 7

Ultraviolet

Question 8

What type of electromagnetic radiation is used for colour photography?

Answer 8

Visible Light

Question 9

What type of electromagnetic radiation is used for scanning for broken bones?

Answer 9

X-rays

Question 10

What type of electromagnetic radiation is used for thermal imaging?

Answer 10

Infrared

Question 11

Lists the waves in the electromagnetic spectrum from highest to lowest frequency

Answer 11

Gamma, X-rays, Ultraviolet, Visible Light, Infrared, Microwave, Radiowaves

Question 12

What are the dangers of X-rays to humans?

Answer 12

x-rays are ionising so they can cause cancer

Question 13

What type of electromagnetic wave is used for sterilising food and medical equipment?

Answer 13

Gamma

Question 14

What type of electromagnetic wave is used for the detection of cancer and its treatment?

Answer 14

Gamma

Question 15

What type of electromagnetic radiation is used for detecting forged bank notes and security marking?

Answer 15

UV

Question 16

What type of electromagnetic radiation is used for television remote controls and other short range communication?

Answer 16

infrared