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Uses of radiation

Total questions: 10

Worksheet time: 3mins

Name
Class
Date
1.

Which of these is a use of alpha radiation?

a)

Sterilising food

b)

Smoke detectors

c)

Monitoring paper thickness

d)

Industrial tracers

2.
For which of the following problems would a scientist most likely use carbon-14? 
a)
to calculate the age of the Earth's oldest rocks
b)
to calculate the age of a piece of bone 
c)
to identify the elements that make up a rock 
d)
to identify the elements that make up a bone
3.
Radioactive tracers are useful in ____.
a)
calculating the ages of fossils 
b)
fueling nuclear reactions 
c)
determining medical problems 
d)
treating brain tumors 
4.

How is radiation used to treat cancer?

a)

Radiation is used to stimulate the growth of cancer cells

b)

Cancer cells are bombarded with radiation and become inactive

c)

Cancer cells are burned up by radiation

d)

Radiation melts cancer cells

5.

Suggest way that a scientist can protect themselves against exposure when handling radioactive sources.

a)

Storing sources in a lead–lined box using tongs

b)

Goggles and gloves

c)

Tie hair back

6.
Name the instrument used to detect radioactivity.
a)
voltmeter
b)
ohmeter
c)
seismograph
d)
geiger counter
7.

Which of these is a use of beta radiation?

a)

Sterilising food

b)

Smoke detectors

c)

Monitoring metal sheet thickness

d)

Industrial tracers

8.

Radioactivity can be harmful and cause disease because it affects _________.

a)

air

b)

water

c)

cells

d)

blood

9.

Food is safe when is it _____________.

a)

irradiated

b)

contaminated

10.

Which alpha emitting radioisotope is found in smoke detectors?

a)

Polonium-210

b)

Uranium-238

c)

Americium-241

d)

Carbon-14