Formulas Flashcards
1
Q
Weight:
A
Gravitational field strength x mass
2
Q
Work done:
A
Force x distance
3
Q
Spring force:
A
Extension x spring constant
4
Q
Distance:
A
Speed x time
5
Q
Kinetic energy:
A
1/2 x mass x velocity squared
6
Q
Gravitational potential energy:
A
Gravitational field strength x mass x height
7
Q
Power:
A
Work done / time
Energy / time
Potential difference x current
Current squared x resistance
8
Q
Efficiency:
A
Useful energy output / total energy input
9
Q
Wave speed:
A
Wavelength x frequency
10
Q
Charge:
A
Current x time
11
Q
Potential difference:
A
Current x resistance
12
Q
Energy:
A
Power x time
Charge x potential difference
13
Q
Density:
A
Mass / volume
14
Q
Moment:
A
Force x distance
15
Q
Distance:
A
Speed x time
16
Q
Acceleration:
A
Change in velocity / time taken
17
Q
Force:
A
Mass x acceleration
18
Q
Momentum:
A
Mass x velocity
19
Q
Pressure:
A
Force / area
