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P2 and P3 physics
P2 and P3 physics key terms
| Question | Answer |
|---|---|
| The most ionizing type of radiation | gamma |
| A secondary source of energy | electricity |
| At the end of their lifetime, ower stations are dismantled. This is called | decommissioning |
| Used fuel rods in a nuclear power station are an example of this type of waste | high level |
| strontium 81 has a half-life of 22 minutes. How long would it take for 80g of strontium to reduce to 20g? | 88 minutes |
| A form of an element with a different number of neutrons in the nucleus. | isotope |
| Used to kill cancer cells. | radiotherapy |
| A type of radiation which is most dangerous if it gets inside the body. | alpha |
| The biggest source of background radiation. | radon |
| When scientists use computer models to predict the effects of increasing CO2 levels. | climate modelling |
| These are frozen records of the past. They trap tiny bubbles of air containing the gases that were in the atmosphere thousands of years ago. | ice caps |
| A process which living things use to make energy. It releases CO2 into the atmosphere. | respiration |
| This is dissolved into the sea from the atmosphere. | carbon dioxide |
| If there was no greenhouse effect the earth would be too | cold |
| Mobile phones use this type of radiation | microwave |
| The heating effect of non-ionizing radiation depends on its duration (exposure time) and its | intensity |
| An energy packet of radiation | photon |
| The chemical formula for ozone | O3 |
Created by:
rclark
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