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TASPhysicsQuick questions
Unit 3: Gravity and Electromagnetism
Quick questions on Momentum and impulse - TCE Physics (Tasmania)
2short 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 conservation of momentum?Show answer
In a closed system, where no external net force acts, total momentum is constant. For two objects interacting:
What is two dimensional momentum?Show answer
Because momentum is a vector, it is conserved separately in the and directions. For a two dimensional collision, resolve every velocity into components, then write a conservation equation for each axis and solve the two equations together. This is how you handle objects that collide and move off at angles.
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