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TASPhysicsQuick questions
Unit 3: Gravity and Electromagnetism
Quick questions on Linear motion and equations of motion - TCE Physics (Tasmania)
3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is vector quantities of motion?Show answer
Position, displacement, velocity and acceleration are all vectors, so direction matters. In one dimension you handle direction with a sign: choose one direction as positive and the opposite as negative, then keep that convention for the whole problem.
What is the equations of motion?Show answer
When acceleration is constant, five quantities are linked by four equations. The symbols are initial velocity , final velocity , acceleration , displacement and time :
What are reading motion graphs?Show answer
Graphs carry the same information as the equations. On a displacement-time graph the gradient is velocity. On a velocity-time graph the gradient is acceleration and the area under the line is displacement. A straight sloped line on a velocity-time graph means constant acceleration; a curve means changing acceleration.
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