Linear Motion

alex.examtime9373
Mind Map by , created almost 6 years ago

This mind map covers scalar quantities, vectors, distance-time graphs, velocity-time graphs and equations of motion. It is aimed at a Leaving Certificate student or someone who wishes to further their knowledge of linear motion.

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alex.examtime9373
Created by alex.examtime9373 almost 6 years ago
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Linear Motion: Scalar Quantities
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Linear Motion
1 Scalar quantities
1.1 Magnitude only
1.2 Examples
1.2.1 Distance (d)
1.2.1.1 How far one point is from another
1.2.1.2 Metres (m)
1.2.2 Speed
1.2.2.1 Distance travelled per unit time
1.2.2.2 Metres per second (m/s)
1.2.3 Mass
1.2.4 Temperature
1.2.5 Time (t)
1.2.5.1 Measures the duration of events
1.2.5.2 Seconds (s)
1.2.6 Electric current
2 Vector quantities
2.1 Both magnitude and direction
2.2 Displacement (s)
2.2.1 Distance in a given direction
2.2.2 Metres (m)
2.2.3 The straight line distance between two points
2.2.3.1 Accompanied by the direction
2.3 Velocity (u or v)
2.3.1 The rate of change of displacement with respect to time
2.3.2 Average velocity = (u + v)/2
2.3.2.1 U = initial velocity
2.3.2.2 V = final velocity
2.4 Acceleration (a)
2.4.1 Rate of change of velocity with respect to time
2.4.2 Metres per second squared
2.4.3 (change in velocity) / (time taken)
2.4.3.1 (v - u)/ t
2.5 Other examples
2.5.1 Momentum
2.5.2 Force
2.5.3 Magnetic flux density
3 Equations of Motion

Attachments:

3.1 v = u + at
3.2 s = u + (1/2)at²
3.3 v² = u² +2as
4 Graphs

Attachments:

4.1 Distance-Time Graphs
4.1.1 Slope = velocity
4.2 Velocity-Time Graphs
4.2.1 Slope = acceleration
4.2.2 Area under the graph = distance travelled
5 Vector calculations

Attachments:

5.1 Adding co-linear vectors
5.1.1 Same direction
5.1.1.1 Add magnitudes
5.1.1.2 Use same direction
5.1.2 Opposite direction
5.1.2.1 Subtract magnitudes
5.1.2.2 Use direction of larger vector
5.2 Adding perpendicular vectors
5.2.1 Pythagoras theorem
5.2.2 Sine, cosine, tangent
5.3 A vector can be resolved into two perpendicular component vectors

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