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P2 and P3 physics

P2 and P3 physics key terms

QuestionAnswer
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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