Equations part 2 Flashcards
1
Q
Weight
A
Mass x gravitational field strength
2
Q
Work done
A
Force x distance
3
Q
Force applied to a spring
A
Spring constant x extension
4
Q
Distance travelled
A
Speed x time
5
Q
Acceleration
A
Change in velocity/time taken
6
Q
Resultant force
A
Mass x acceleration
7
Q
Momentum
A
Mass x velocity
8
Q
Kinetic energy
A
0.5 x mass x speed2
9
Q
Gravitational potential energy
A
Mass x gravitational field strength x height
10
Q
Power(energy transferred)
A
Energy transferred/time
11
Q
Power(work done)
A
Work done/time
12
Q
Efficiency(energy transfer)
A
Useful output energy transfer/total input energy transfer
13
Q
Efficiency(power)
A
Useful power output/total power output
14
Q
Wave speed
A
Frequency x wavelength
15
Q
Charge flow
A
Current x time
