Physics Unit 1, 2, 3 GCSE
- Created by: arun
- Created on: 22-04-10 14:12
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Speed
average speed = distanced moved / time taken
If a car moves 0.20m in 0.01 seconds - the average speed is 0.20/0.01 = 20 ms^ -1
Velocity
If something is moving, the velocity of it is speed AND direction
Density and Pressure
Density = mass/volume
Mass = density x volume
Volume = Mass/Density
Mass - how much stuff there is - (kg) SI unit
Weight - how much gravity in something - the…
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