Motion - key points

01west
Mind Map by 01west, updated more than 1 year ago
01west
Created by 01west about 6 years ago
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GCSE Physics (Motion) Mind Map on Motion - key points, created by 01west on 03/20/2014.
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Motion - key points
1 Distance-time graphs (key points):
1.1 The distance-time graph for any object is:
1.1.1 - Stationary is a horizontal line
1.1.2 - Moving at constant speed is a straight line that slopes upwards
1.2 the gradient of a distance-time graph for an object represents the object's speed
1.3 Speed in metres per second, m/s =
1.3.1 distance travelled in metres,m ------------------------------------------ time taken in seconds, s
2 Velocity and acceleration (key points)
2.1 Velocity is speed in a given direction
2.2 Acceleration is change of velocity per second. The unit of acceleration is the metre per second squared(m/s/s)
2.3 Accerleration =
2.3.1 change of velocity -------------------- time taken
2.4 Deceleration is the change of velocity per second when an object slows down.
3 More about velocity-time graphs(key points)
3.1 If velocity-time graph is a horizontal line, they acceleration is zero.
3.2 The gradient of the line on a velocity-time graph represents acceleration
3.3 The area under the line on a velocity-time graph represents distance travelled
4 Using graphs (key points)
4.1 The speed of an object is given by the gradient of the line on its distance-time graph
4.2 The acceleration of an object is given by the gradient of the line on its velocity-time graph
4.3 The distance travelled by an object is given by the area under the line of its velocity-time graph
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