Equations To Memorise Flashcards
1
Q
Weight =
A
Mass x gravitational field strength
2
Q
Force applied to a spring
A
Spring constant x extension
Hooke’s law
3
Q
Acceleration
A
Change in velocity / time taken
4
Q
Momentum
A
Mass x velocity
5
Q
Gravitational potential energy
A
Mass x height x gravitational field strength
6
Q
Power
A
Work done / time
7
Q
Efficiency
A
Useful power output / total power output
8
Q
Charge flow
A
Current x time
9
Q
Power (electricity)
A
Potential difference x current
10
Q
Energy transfer
A
Power x time
11
Q
Density
A
Mass / volume
12
Q
Work done
A
Force x distance along the line of action of the force
13
Q
Distance travelled
A
Speed x time
14
Q
Resultant force
A
Mass x acceleration
15
Q
Power (3)
A
Energy transferred / time
