## Acceleration

**Acceleration** is how quickly the** velocity** is changing whether it be **speed**, **direction** or both. **Acceleration** is a measure of how quickly the **velocity **of an object is changing.

## Demo

In this tutorial you will learn how to calculate the **acceleration** of a moving object.

The equation is written like this:

$a = { v \unicode{x2013} u \over \text{t}}$

## Chilled practice question

Calculate the **acceleration** if the **velocity** increases from 4 **m/s **to 76 **m/s** in 8 **s**.

## Frozen practice question

How long does it take for the **velocity** of a bus to increase from 12 **m/s** to 20 **m/s** if it is accelerating at 4 **m/s ^{2}**.

## Science in context

**Acceleration** is how quickly the **velocity **is changing whether it be **speed**, **direction** or both.