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AQA physics
Question | Answer |
---|---|
Time-distance graph represents.. | Speed |
Steeper line on a time-distance graph represents... | A greater speed |
Velocity= | Speed in a given direction |
Acceleration= | Change of velocity per second |
Newton | unit of force |
When two forces interact they.. | always exert equal and opposite forces |
work done= | force X distance moved |
elastic potential energy= | energy stored in an elastic object when work is done |
1/2 X mass X speed | kinetic energy |
Momentum is conserved when | objects interact |