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Energy, Work and Power
Quick questions on Work done explained: O-Level Physics
4short 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 same unit as energy?Show answer
Because work done equals energy transferred, work and energy share the same unit, the joule. This is the bridge between this dot point and the energy forms.
What is q1?Show answer
A force of moves a box in the direction of the force. Calculate the work done. [2 marks]
What is q2?Show answer
State the unit of work and explain how it relates to energy. [2 marks]
What is q3?Show answer
Explain why no work is done when a person holds a heavy box still. [2 marks]
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