# Physics 2.1_1

Mind Map by kellysadie, updated more than 1 year ago More Less
 Created by kellysadie over 6 years ago Copied by kellysadie over 6 years ago
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### Description

GCSE Physics (Physics 2) Mind Map on Physics 2.1_1, created by kellysadie on 03/12/2014.

## Resource summary

Physics 2.1_1
1 Distance-Time graphs
1.1 Gradient of the line represents objects speeed
1.2 Steeper the line, faster the object
1.3 Speed=Distance/time
1.4 The speed of an object is distance in 1s
2 Velocity and acceleration
2.1 Velocity is speed in a given direction
2.2 If an object changes speed it changes velocity
2.3 Acceleration=final velocity-initial velocity/time

Annotations:

• A=v-u        t
2.3.1 If the value is negative they are decelerating
3 Velocity-time graph
3.1.1 If line is negative object is decelerating
3.2 If the line is horizontal, acceleration=0 so steady speed
3.3 The area under the line is distance travelled
4 Using Graphs
4.3 Distance travele= area under velocity-time graph

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