# Describing Motion

Mind Map by harithra kuru, updated more than 1 year ago
 Created by harithra kuru almost 4 years ago
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### Description

This is a simple yet informative mind map created for KS3 students to revise their knowledge on motion.

## Resource summary

Describing Motion
1 Distance, time & speed
1.1 Distance
1.1.1 length of the path travelled
1.2 Time
1.2.1 interval of change
1.3 Speed
1.3.1 distance travelled during a unit time
2 Graphing motion
2.1 Motion graphs are plotted on Cartesian planes
2.1.1 Axis
2.1.1.1 dependent axis
2.1.1.1.1 distance or speed
2.1.1.2 independent axis
2.1.1.2.1 time axis
2.1.2 Scale
2.1.2.1 value represented by the distance between marks on an axis
2.2 Distance vs Time
2.2.1 straight line indicates constant speed
2.3 Speed vs Time
3 Relative motion
3.1 objects traveling in the same direction
3.1.1 magnitude of relative velocity is less than velocity of both objects
3.1.2 magnitude of the relative velocity is given by the difference between the velocities of the two objects
3.2 objects traveling in opposite direction
3.2.1 magnitude of relative velocity is greater than the velocity of both
3.2.2 magnitude of the relative velocity is given by the sum of the two velocities
3.3 relative velocity is equal to (vel of object - vel of ref point)

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