Topic Summaries

Acceleration

GCSE > Physics > CCEA > GCSE Physics Topic Summaries > Velocity and acceleration > Acceleration
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Charge, current, and electric fields

Stopping, braking, and momentum

Science skills: Measuring results

  • Acceleration is the rate at which an object’s speed is changing.
  • An object that is speeding up is accelerating. An object that is slowing down is decelerating.
  • The average acceleration of an object is given by the equation \(\text{acceleration}=\text{change in velocity}\div\text{time}\). This can be written as \(a=\dfrac{\Delta v}{t}\) where:
    • \(a\) is the average acceleration in m/s2
    • \(\Delta v\) is the change in velocity in m/s
    • \(t\) is the time in s

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