Acceleration Lesson | GCSE Physics OCR 21st Century Higher Triple

Acceleration

This lesson covers:

What 'acceleration' is
The acceleration equations: $a=\frac{Δv}{t}$ and $2as=v$

Acceleration is:

The rate of change in distance

The rate of change in displacement

The rate of change in velocity

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Illustration showing a sequence of circles fading from dark to light with an arrow indicating direction, representing negative acceleration.

Negative acceleration is often called:

deceleration

unceleration

anti-acceleration

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The formula for acceleration is:

a=Δvt

a=vΔt

a=tΔv

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It takes 10 s for an object to accelerate from 10 m/s to 25 m/s.

What is the object's average acceleration?

1.5

m/s²

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Which of these is a formula for acceleration?

$as=v-u$

$2as=v$

$as=v$

$2as=v-u$

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Diagram showing a car accelerating from a lower speed to a higher speed.

A car accelerates from 5 m/s to 25 m/s in 100 m.

What is the car's average acceleration?

3

m/s²

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It takes 2 minutes for a rocket to accelerate from 0 m/s to 2,400 m/s.

What is the rocket's average acceleration?

20

m/s²

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