# Physics equations

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• Created by: liztoomer
• Created on: 02-06-16 08:43
Electric current = ..... ?
Electrical current = Charge flowed/time taken
1 of 18
Resistance = ...?
Resistance = voltage/current
2 of 18
Speed = ..?
Speed = distance/ time
3 of 18
Acceleration = ...?
Acceleration = Gain in speed/ time taken
4 of 18
Pressure = ....?
Pressure = force/area
5 of 18
Amplitude
This is the maximum vibration
6 of 18
Wave length
The distance between each of the top of the waves
7 of 18
Frequency
The number of crests that move past a single point
8 of 18
Time period
The time taken for a whole cycle of vibration
9 of 18
Wace speed
The distance a wave travels per unit time
10 of 18
Speed = ...?
square root of 2 x K.E/mass
11 of 18
Kinetic energy =
1/2 x mass x (Velocity) squared
12 of 18
Gravitational Potential Energy (GPE) =
mass x acceleration of free fall x change in height
13 of 18
Power =
work done/ time taken
14 of 18
Refractive index =
speed of light in air/ speed of light in medium
15 of 18
Normal =
sin i/sin r
16 of 18
Efficiency =
useful energy output/ total energy input (x100 for a %)
17 of 18
Work done =
force x distance moved
18 of 18

## Other cards in this set

### Card 2

#### Front

Resistance = ...?

#### Back

Resistance = voltage/current

Speed = ..?

### Card 4

#### Front

Acceleration = ...?

Pressure = ....?

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