# Work, Energy And Momentum

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- Created by: Josh
- Created on: 04-01-11 16:40

First 146 words of the document:

P2: Work, Energy And Momentum

As physics is a hard topic, the specification of the exams has

been used to make notes on only the area we NEED to know. The

notes have been written in small sentence format for easier

learning.

Speed

The speed is how fast an object is moving

Measured in m/s

To calculate speed you use this formula:

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

Distance Time Graphs

The slope of a distance time graph represents speed

Velocity

Velocity is speed in a given direction

Acceleration

The acceleration of an object is the rate at which its velocity

changes

Calculated using this formula:

Acceleration (m/s²) =change in velocity(m/s) / timetaken for

change

Velocity time Graph

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