1. Question 1 What has the highest energy photons? A) gamma B) micro waves C) radio waves D) light

2. Question 2 What has the shortest wavelength A) Radio waves B) Gamma rays C) Visible light D) UV

3. Question 3 What colour of light transfers more energy photons per second? Blue Red Violet Green

4. Question 5 What E.M radiation is absorbed by the ozone layer? A) Gamma B) X-rays C) UV D) Infra red

5. Question 6 Why is ionisation radiation so dangerous? A) It causes mutations in DNA B) It is absorbed by bone C) It causes the synthesis of Vitamin D D) It vibrates water molecules to produce heat

6. Question 7 Why chemical depletes the ozone layer? A) Methane B) CFC’s C) water vapour D) Carbon dioxide

7. Question 8 What is an ion? A) an atom that has gained an electron B) A free radical C) charged particle D) high energy photon

8. Question 9 Why are x-rays absorbed by bones but gamma passes straight through? A) Gamma has higher energy photons B) X-rays are slightly less energetic C) X-rays are slightly less energetic D) X-rays have less electrons

9. Intensity is what? A) Energy per meter squared B) How many electrons are transferred by the wave C) Energy transferred per second per M squared D) Energy transferred per minute per cm squared