P2: Radiation and life

Self assessment test

Question 1

We can see the Ultraviolet part of the electromagnetic spectrum:

True False

Well done!

2 3 4 5 6 7

8 9 10 11 12

End

No, sorry………

• You need to revise the electromagnetic spectrum.

• With this link, please remember that often, the electromagnetic spectrum is pictured with the high energy waves (e.g. gamma rays) on the right hand side.

Question 2: which of the people is the most likely to burn quickest when out on a sunny day?

Click on the correct face.

No, sorry……

• You need to revise how UV light can affect our skin:

• Click here.

Question 3: Benefits of UV light.

• When the skin absorbs sunlight, it causes the body to make more of which vitamin?

1. A

2. B

3. C

4. D

No sorry

• You need to learn about the benefits of UV light for health

• http://en.wikipedia.org/wiki/Ultraviolet#Beneficial_effects

Question 4: The atmosphere absorbs, reflects and transmits radiation. Which of those does this show?

• First, click here.

1. Absorb

2. Transmit

3. Reflect

No, sorry…

• You need to learn the difference between absorb, transmit and reflect.

• Go to the next page.

Transmission

TRANSMISSION

Reflection

REFLECTION

ABSORPTION

Absorption

Question 5: Ozone has a formula of O3. What are the names of the chemicals that change O3 to oxygen (O2)?

• AFCs

• BFCs

• CFCs

No, sorry…

• Watch this animation to get the correct answer.

Question 6: In order for infrared radiation to be detected, it must be:

• absorbed

• reflected

No sorry…..

• See the animation on page 11 of the following link:

• http://lgfl.skoool.co.uk/content/keystage4/physics/pc/lessons/uk_ks4_waves_2/h-frame-ie.htm

Question 7: Which of the following types of radiation is ionising?

• Visible light

• Infrared

• Ultraviolet

• Microwave

No, sorry…

• You need to learn about ionising and heating radiation, and which types they include. Go to:

http://www.bbc.co.uk/schools/gcsebitesize/science/21c/radiation/electromagneticradiationrev6.shtml

Question 8: Which type of radiation do mobile phones use to communicate with the base station?

1. Infrared

2. Microwave

3. Gamma

4. Ultraviolet

No, sorry…

• Go to

http://www.bbc.co.uk/schools/gcsebitesize/science/21c/radiation/hazardsradiationrev3.shtml

Question 9: Is microwave radiation ionising?

1. Yes

2. No

No, sorry….

• You need to learn which types of radiation are ionising.

• Go to

http://www.bbc.co.uk/schools/gcsebitesize/science/21c/radiation/electromagneticradiationrev6.shtml

Question 10: Are x-rays ionising?

1. Yes

2. No

No, sorry…

• Go to

http://www.bbc.co.uk/schools/gcsebitesize/science/21c/radiation/electromagneticradiationrev6.shtml

Question 11: If we didn’t have an atmosphere, what would happen to the temperatures of our planet?

1. They would get hotter

2. They would get colder

3. They would fluctuate to greater extremes

No, sorry…

1. To get the correct answer, compare it to Mars, which doesn’t have an atmosphere like ours (click on the solar system button):

http://www.scienceyear.com/planet10/solar_preload.html

Question 12: Which of these three things does not increase the CO2 levels in our atmosphere?

• Driving cars that use fossil fuels

• Factories

• Photosynthesis

• Respiration

No, sorry…

You need to learn about the carbon cycle.

Please go to:

http://www.biology.ualberta.ca/facilities/multimedia/uploads/alberta/CarbonCycle.html

Well done!

• If you got them all right first time, that’s great!

• Otherwise, please click on this button to take the test again, but this time try to get them all right, now you’ve done some revision.