# Physics P2 Equations

These Cards will help you with your Equations.

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## Speed

Speed (m/s) = Distance (m) x Time (s)

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## Acceleration

Acceleration (m/s2) = Change in velocity (m/s) ÷ Time taken for change (s)

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## Stopping Distance

Thinking distance + Braking distance = Stopping distance

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## Force & Acceleration

Resultant force (N) = Mass (kg) x Acceleration (m/s2)

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## Work done

Work done (J) = Force applied (N) x Distance in direction of force (m)

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## Kinetic Energy

Kinetic Energy (J) = ½ x Mass (kg) x Speed (m/s2)

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## Momentum

Momentum (kg m/s) = Mass (kg) x Velocity (m/s)

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## Force & Momentum

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

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## Potential Differance

Potential difference (V) = Current (A) x Resistance (Ω)

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## Power & Energy

Power (W) = Energy (J) ÷ Time (s)

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## Power & Current

Power (W) = Potential difference (V) x Current (A)

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## Charge

Charge (C) =  Current (A) x Time (s)

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## Units

(m/s) - Meters per second

(m) - Meters

(s) - Seconds

(m/s2) - Meters per second squared

(N) - Newtons

(kg) - Kilograms

(J) - Joules

(kg m/s) - Kilograms meters per second

(V) - Volts

(A) - Ampere

(Ω) - Ohm

(C) - Coulomb

(W) - Watt

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## Units

(kg m/s) - Kilograms meters per second

(V) - Volts

(A) - Ampere

(Ω) - Ohm

(C) - Coulomb

(W) - Watt

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## Comments

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LISTEN! you done need equations, every single equation is given to you as an equation sheet with the examinations paper, it even outlines whether or not its on higher tier paper... check it on a new specification past paper!!!

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