# Equations

All the equations for aqa physics P2

- Created by: James Gillie
- Created on: 18-01-11 18:44

First 148 words of the document:

P2 Equations

Speed (m/s) = distance ÷ time taken (s)

Acceleration (m/s2) = change in speed (m/s) ÷ time taken (s)

Distance travelled (meters) = Area under graph (velocity time graph)

Resultant force (newton, N) = mass (kg) × acceleration (m/s2)

Weight (N) = mass (kg) × gravitational field strength (N/kg)

Weight (N) = mass (kg) x acceleration due to gravity (m/s2) (about 10m/s2)

Work done (joule, J) = force (newton, N) × distance (metre, m)

Momentum (kg m/s) = mass (kg) × velocity (m/s)

(momentum of bullet = mass × velocity)

Kinetic energy (J) = 1/2 × mass (kg) × speed2 (m/s)

Speed (m/s) = 2KE ÷ M

Mass (Kg) = 2KE ÷ M2

Force (N) = change in momentum (kg m/s) ÷ time taken for change (s)

Potential difference (volt, V) = current (ampere, A) × resistance (ohm, )

Power (w) = energy transformed (J) ÷ time (s)

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