What does alpha radiation consist of?
Two protons and two neutrons
One electron
Electromagnetic radiation

Which type of radiation is the least penetrating?
Gamma
Alpha
Beta

Which type of radiation travels the furthest in air?
Alpha
Beta
Gamma

Which of these is the correct definition of half-life?
The time it takes for the number of protons to halve
The distance it takes for the number of nuclei to halve
The time it takes for the number of nuclei to halve

What shape is the line on a decay curve for a radioactive substance?
Straight line upwards
Curve downwards
Curve upwards

What charge is alpha radiation?
Negative
Neutral
Positive

Which type of radiation will be attracted to a positively charged plate?
Beta
Alpha
Gamma

What colour will photographic film turn when it absorbs radiation?
Stay the same
Darker
Lighter

What tube detects radiation?
Fluorescent
Geiger-Muller
Glass

Which of these is an artificial source of background radiation?
Cosmic rays
Rocks and soil
Radioactive waste