Work Done & Friction (AQA GCSE Physics Combined Science): Flashcards
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Friction
Friction
Force that opposes motion between two surfaces in contact
Direction friction acts
Direction friction acts
Opposite to the motion
Energy from friction becomes
Energy from friction becomes
Heat
Effect of friction on temperature
Effect of friction on temperature
Temperature increases
Work done
Work done
Measurement of energy required to move an object
Equation for work done
Equation for work done
Unit of (work done)
Unit of (work done)
J (Joules)
Unit of (force) in
Unit of (force) in
N (Newtons)
Unit of (distance) in
Unit of (distance) in
m (metres)
Why heavier person needs more energy to climb same distance
Why heavier person needs more energy to climb same distance
Greater weight means greater force, so more work done ()