Lesson 4.4.3.1
4.4.3.1 Background radiation Quiz: AQA Physics, Unit 4
20 questions
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Lesson 4.4.3.1, Background radiation: 20 multiple choice questions for the AQA GCSE Physics (8463), Unit 4: Atomic structure, written with Revision Ninja.
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The 20 questions
-
What are the two primary sources of background radiation?
- Solar and lunar
- Natural and man-made
- Internal and external
- Thermal and chemical
-
Which of these is a natural source of background radiation?
- Nuclear fallout
- Cosmic rays
- Reactor waste
- Medical X-rays
-
Which of these is a man-made source of background radiation?
- Nuclear fallout
- Cosmic rays
- Radon gas
- Granite rocks
-
What two factors commonly affect a person's background radiation dose?
- Age and diet
- Exercise and sleep
- Height and weight
- Occupation and location
-
How often is background radiation present around us?
- Only at night
- Only outdoors
- During sunlight
- All the time
-
Which conversion between radiation dose units is correct?
- 1000 millisieverts = 1 sievert
- 1 millisievert = 1 sievert
- 100 millisieverts = 1 sievert
- 1000 sieverts = 1 millisievert
-
A dose of 3500 mSv expressed in sieverts is:
- 3.5 Sv
- 3500 Sv
- 35 Sv
- 0.35 Sv
-
A dose of 0.75 Sv expressed in millisieverts is:
- 7.5 mSv
- 750 mSv
- 75 mSv
- 7500 mSv
-
A person receives 2.4 mSv of background dose in a year. This is equal to:
- 0.24 Sv
- 24 Sv
- 0.0024 Sv
- 2400 Sv
-
Why does a high-altitude flight increase a pilot's background radiation dose?
- Location
- Cabin pressure
- Engine heat
- Speed
-
What man-made source can add to background radiation levels?
- Nuclear accidents
- Solar flares
- Cosmic rays
- Granite rocks
-
Fallout from nuclear weapons testing is classified as what type of source?
- Natural source
- Geothermal source
- Man-made source
- Cosmic source
-
Why do certain rocks contribute to natural background radiation?
- Radioactive materials
- Electric charge
- High temperature
- Magnetic fields
-
Which factor does not affect a person's background radiation dose?
- Occupation
- Location
- Sky colour
- Altitude
-
Why must background radiation be measured before testing a radioactive source?
- To increase activity
- To subtract readings
- To stop decay
- To calibrate scales
-
Why might an airline pilot receive a higher background radiation dose?
- Medical X-rays
- Deep underground
- Heavy lead shields
- High altitude
-
What causes background radiation levels to differ between two locations?
- Rock and altitude
- Local wind speed
- Daylight hours
- Average rainfall
-
Background radiation is best described as coming from what sources?
- Natural and man-made
- Man-made only
- Natural only
- Artificial only
-
Which factor can affect the background radiation dose received by a worker?
- Body mass
- Eye colour
- Shoe size
- Their occupation
-
Which radioactive gas accounts for the largest proportion of natural background radiation in the UK?
- Uranium
- Thorium
- Carbon
- Radon
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