P12

Question 1

Electromagnetic spectrum

Answer 1

Radiowaves
Microwaves
Infrared
Visible light
Ultraviolet
X-ray
Gamma ray

Question 2

Frequency increase

Answer 2

• Shorter wavelength
• Energy increase

Question 3

Radiowaves use

Answer 3

• Carry radio, TV, phone signal

Question 4

Radiowaves hazard

Answer 4

Penetrate body- heat up internal parts

Question 5

Microwave use

Answer 5

-Heat food
-Satelite
-Phone signal

Question 6

Microwave hazard

Answer 6

Penetrate body- heat up internal parts

Question 7

Infrared use

Answer 7

-Optical fibre
-Remote signal
-Heat scanning
-Night vision
-Heating

Question 8

Infrared hazard

Answer 8

Damage burn skin cells- heat up cells

Question 9

Visible light use

Answer 9

-Photography
-Vision

Question 10

Visible light spectrum

Answer 10

Red, Oramge, Yellow, Green, Blue, Indigo, Violet

Question 11

Visible light hazard

Answer 11

-Damage eyes

Question 12

Ultraviolet use

Answer 12

-Security marker pen
-Ink
-Detect forgeries
-Sunbed

Question 13

Ultraviolet hazard

Answer 13

-Cause sunburn, skin cancer- damage skin

Question 14

X-ray use

Answer 14

-Create image of bones
-Detect internal crack in object

Question 15

X-ray hazard

Answer 15

-Cause ionising radiaton- kill cell, mutate DNA- cause cancer

Question 16

Gamma ray use

Answer 16

-Kill bacteria
-Clean surgical instrument
-Kill cancer cell

Question 17

Gamma ray hazard

Answer 17

-Cause ionising radiaton- kill cell, mutate DNA- cause cancer

Question 18

Gamma ray hazard

Answer 18

-Cause ionising radiaton- kill cell, mutate DNA- cause cancer