7.10 explain the sources of background (ionising) radiation from Earth and space

7.10 explain the sources of background (ionising) radiation from Earth and space

• radon in air
• Granit in rocks
• Cosmic rays
• Medical equipment
• Food and drink

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• 1.01 use the following units: kilogram (kg), metre (m), metre/second (m/s),…

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  1.03 plot and explain distance-time graphs

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  1.04 know and use the relationship between average speed, distance moved and time taken

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  1.06 know and use the relationship between acceleration, change in velocity and time taken

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  1.07 plot and explain velocity-time graphs

• 1.09 determine the distance travelled from the area between a velocity-time graph and the time axis