Equations Flashcards
1
Q
Current, charge, time
A
Charge = current x time Coulombs = amps x seconds Q = Ixt
2
Q
Current, resistance, voltage
A
Voltage = current x resistance Volts = amps x ohms V = IxR
3
Q
Current, power, voltage
A
Power = current x voltage Watts = amps x volts P = IxV
4
Q
Current, voltage, Electrical transferred, time
A
Energy transferred = current x voltage x time
J = amps x volts x seconds
E = IxtxV
5
Q
Volts squared, power, resistance
A
Power = voltage squared/Resistance Watts = volts/ohms P = v2/R
6
Q
Power lost
A
Power = current squared x resistance Watts = amps x ohms P = I2xR
7
Q
Time, Energy, power *
A
Energy = power x time Joules = Watts x seconds E = Pxt
8
Q
Time, resistance, current squared, energy *
A
Energy = current squared x resistance x time E = I2xRxt
9
Q
Mass, acceleration, force
A
Force = mass x acceleration F = m x a N = kg x m/s2
10
Q
Mass, weight, gravity
A
Weight = mass x gravity W = m x g N = kg x N/kg
11
Q
Mass, gravity, GPE, height
A
GPE = mass x gravity x height GPE = mgh J = kg x m/s2 x m
12
Q
1/2, mass, kinetic energy, speed squared
A
Kinetic energy = 1/2 x mass x speed2
KE = 1/2 x m x v2
J = 1/2 x kg x m/s2
13
Q
Force, work, distance
A
Work = force x distance W = f x d J = N x m
14
Q
Time taken, work done, power
A
Power = work done/time W = p x t J = W x s
15
Q
Mass, velocity, momentum
A
Momentum = mass x velocity P = m x v Kgm/s = kg x m/s
