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VICPhysicsQuick questions
Unit 2: How does physics help us to understand the world?
Quick questions on Tension, pulleys and connected bodies (VCE Physics Unit 2)
5short 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 light string?Show answer
Mass-less, so tension is the same throughout. The string is inextensible, so all bodies connected by it share the same magnitude of acceleration.
What is light frictionless pulley?Show answer
Mass-less and rotates without friction, so tension is identical on both sides of the pulley. The pulley redirects the force without changing its magnitude.
What is q1?Show answer
State the assumptions made when analysing light inextensible strings over light frictionless pulleys. [2 marks]
What is q2?Show answer
Two masses, kg and kg, hang from opposite ends of a light cord over a frictionless pulley. Calculate (a) the acceleration of the system, and (b) the tension in the cord. [4 marks]
What is q3?Show answer
Refer to the Snowy 2.0 incline-rail example. (a) Set up Newton's second law equations for both masses. (b) Calculate the acceleration.
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