Physics Equations Flashcards
1
Q
Kinetic energy
A
1/2 x mass x speed^2
1/2mv^2
2
Q
Gravitational energy (gpe)
A
Mass x gravitational field strength x height
MGH
3
Q
Efficiency
A
Useful energy or power output / total energy or power input
4
Q
Electric charge
A
Current x time
Q = It
5
Q
Potential difference (voltage )
A
Current x resistance
V=IR
6
Q
Total resistance
A
R1 + R2
7
Q
Power (electricity 2)
A
Current x potential difference
P = IV
8
Q
Power (electricity)
A
(Current)^2 x resistance
P = I^2 R
9
Q
Energy transferred
A
Power x time
E=Pt
Electric Charge x potential difference
E=QV
10
Q
Density
A
Mass/volume
Slanted p = m/V
11
Q
Weight
A
Mass x gravitational field strength
W = mg
12
Q
Work done
A
Force x distance
13
Q
Force applied to a spring
A
Spring constant x extension
F = ke
