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Formulas and basic information for Motion Unit 2 VCE 2022
This is a draft cheat sheet. It is a work in progress and is not finished yet.
Modelling Motion
Scalar |
quantity with just magnitude |
e.g. Distance |
total length, disregarding direction (SI Unit:m) |
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e.g. Speed |
a rate showing change of distance with time (SI Unit:m/s) |
speed = distance travelled/time taken |
Vector |
quantity with both magnitude and direction |
e.g. Displacement |
distance moved with direction, measure of change of position (SI Unit:m) |
displacement 'x' = final position - initial position |
e.g. Velocity |
rate of change of displacement with direction (SI Unit:m/s) |
direction can be given as '+' or '-' in a straight line, otherwise velocity requires a direction |
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Motion Graphs
Distance-time graph |
Graph depicting total distance travelled over time |
gradient = speed
(object at rest does not have to be at a distance of zero) |
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