N5 Radiation Quiz

Which row describes alpha (α), beta (β) and gamma (γ) radiations?

• A
• B
• C
• D
• E

• A I only
• B II only
• C I and II only
• D II and III only
• E I and III only

A student makes the following statements about the fission process in a nuclear power station.Which of these statements is/are correct?

• A I only
• B II only
• C III only
• D I and II only
• E II and III only

Alpha radiation ionises an atom. Which statement describes what happens to the atom?

• A The atom splits in half.
• B The atom releases a neutron.
• C The atom becomes positively charged.
• D The atom gives out gamma radiation.
• E The atom releases heat.

A sample of tissue receives an absorbed dose of 16 μGy from alpha particles.The radiation weighting factor for alpha particles is 20.The equivalent dose received by the sample is

• A 0·80 μSv
• B 1·25 μSv
• C 4 μSv
• D 36 μSv
• E 320 μSv.

For a particular radioactive source, 240 atoms decay in 1 minute.The activity of this source is

• A 4 Bq
• B 180 Bq
• C 240 Bq
• D 300 Bq
• E 14 400 Bq.

Which row in the table shows how the mass and charge of an alpha particle compares to the mass and charge of a beta particle?

• A
• B
• C
• D
• E

During ionisation an atom becomes a positive ion.Which of the following has been removed from the atom?

• A An alpha particle
• B An electron
• C A gamma ray
• D A neutron
• E A proton

A sample of tissue is exposed to 15 μGy of alpha radiation and 20 μGy of gamma radiation.The total equivalent dose received by the tissue is

• A 35 μSv
• B 320 μSv
• C 415 μSv
• D 700 μSv
• E 735 μSv.

In the following passage some words have been replaced by the letters X, Y and Z

• A
• B
• C
• D
• E