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MassachusettsPhysicsQuick questions

Module 4: Energy and work

Quick questions on Energy conversion devices - MA Introductory Physics MCAS Module 4

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 q1?
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A device takes in 300300 J and produces 240240 J of useful output. Calculate its efficiency as a percent. [2]
What is q2?
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Name the form most wasted energy takes in a real device, and one cause. [2]

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