§-Quick questions
QLDEngineeringUnit 4: Machines and mechanisms
Quick questions on Torque and rotational power for QCE Engineering Unit 4
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 torque?Show answer
Torque measures how strongly a force twists a shaft about its axis:
What are power in rotating systems?Show answer
Power is the rate of doing work. For a rotating shaft, the power transmitted is the product of the torque and the angular speed:
What is power is conserved through a drive?Show answer
An ideal gear train, belt or chain transmits power without loss, so the power in equals the power out:
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