Physics Equations Flashcards
1
Q
Work done equation
A
Force x distance
2
Q
Change in gravitational potential energy store
A
Weight x change of weight
3
Q
Weight
A
Mass x gravitational field strength
4
Q
Kinetic energy
A
1/2 x mass x speed(squared)
5
Q
Effiency
A
Useful output energy divided by total input x 100%
6
Q
Power
A
Energy transferred divided time taken
7
Q
Power
A
Current x potential difference
8
Q
Power
A
Current (squared) x resistance
9
Q
Charge flow
A
Current x time
10
Q
Potential difference
A
Energy transferred divided by charge
11
Q
Resistance
A
Potential difference/current
12
Q
Density
A
Mass/volume
13
Q
Resultant force
A
Mass x acceleration
14
Q
Weight
A
Mass x gravitational field strength
15
Q
Force applied to spring
A
Spring constant x extension
16
Q
Momentum
A
Mass x velocity
17
Q
Wave speed
A
Frequency x wavelength
18
Q
Magnification
A
Image height/object height
