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VICPhysicsQuick questions
Unit 1: What ideas explain the physical world?
Quick questions on Heat transfer mechanisms (VCE Physics Unit 1)
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 stefan-Boltzmann law?Show answer
Power radiated per unit area by a black body:
What is wien's displacement law?Show answer
Peak emission wavelength is inversely proportional to absolute temperature:
What is q1?Show answer
Outline conduction, convection and radiation in one sentence each. [3 marks]
What is q2?Show answer
A red-hot iron rod at K has surface area m. Calculate (a) the wavelength at which it radiates most intensely, and (b) the total power radiated assuming black-body behaviour. [4 marks]
What is q3?Show answer
Refer to a gas flare at K. (a) Identify the dominant heat transfer mechanism for a worker m away. (b) Calculate the peak emission wavelength.
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