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| Questão | Responda |
| What does alpha radiation consist of? Two protons and two neutrons One electron Electromagnetic radiation | Alpha radiation consists of two protons and two neutrons. This is the same as a helium nucleus. |
| Which type of radiation is the least penetrating? Gamma Alpha Beta | Alpha radiation is the least penetrating |
| Which type of radiation travels the furthest in air? Alpha Beta Gamma | Gamma radiation travels the furthest in air. |
| 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 | The correct definition for a half-life is 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 | The shape of the line on a decay curve for a radioactive substance is a curve downwards. |
| What charge is alpha radiation? Negative Neutral Positive | Alpha particles are positively charged. |
| Which type of radiation will be attracted to a positively charged plate? Beta Alpha Gamma | Beta radiation is negatively charged and so will be attracted to a positively charged plate. |
| What colour will photographic film turn when it absorbs radiation? Stay the same Darker Lighter | Photographic film will turn darker when it absorbs radiation. |
| What tube detects radiation? Fluorescent Geiger-Muller Glass | A Geiger-Muller tube detects radiation. |
| Which of these is an artificial source of background radiation? Cosmic rays Rocks and soil Radioactive waste | Radioactive waste is an artificial source of background radiation. |
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