# Key Physics Equations

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• Created by: Meggan
• Created on: 17-11-13 11:12
Speed (m/s)
Distance (m) / Time (s)
1 of 18
Acceleration (m/s2)
Change in Velocity (m/s) / Time (s)
2 of 18
Force (N)
Mass (kg) x Acceleration (m/s2)
3 of 18
Weight (N)
Mass (kg) x Gravitational Field Strength (10N/kg)
4 of 18
Moment (kgm/s)
Mass (kg) x Velocity (m/s)
5 of 18
Kinetic Energy (J)
1/2 x Mass (kg) x Velocity (m/s) Squared
6 of 18
Gravitational Potential Energy (J)
Mass (kg) x Height (m) x Gravitational Field Strength (10N/kg)
7 of 18
Efficiency
Useful Energy Output (J) / Total Energy Input (J)
8 of 18
Work Done (J)
Force (N) x Distance (m)
9 of 18
Density (kg/m3)
Mass (kg) / Volume (m3)
10 of 18
Wave Speed (m/s)
Frequency (Hz) x Wavelength (m)
11 of 18
Refractive Index - symbol n
Sin(incidence) / Sin(refraction)
12 of 18
Sin(Critical Angle)
1 / Refractive Index
13 of 18
Power (W)
Current (A) x Voltage (V)
14 of 18
Charge (C)
Current (A) x Time (s)
15 of 18
Voltage (V)
Current (A) x Resistance (Symbol for Ohms)
16 of 18
Moment (Nm)
Force (N) x Perpendicular Distance to Pivot (m)
17 of 18
Pressure (Pa)
Force (N) / Area (m2)
18 of 18

## Other cards in this set

### Card 2

#### Front

Acceleration (m/s2)

#### Back

Change in Velocity (m/s) / Time (s)

Force (N)

Weight (N)

Moment (kgm/s)