Back to the full dot-point answer
VICPhysicsQuick questions
Unit 1: What ideas explain the physical world?
Quick questions on Heat transfer mechanisms (VCE Physics Unit 1)
6short 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 confusing $\lambda_{\max}$ in metres with nanometres?Show answer
Wien's law in m K gives metres. Convert by $10^9$ for nm.
What is forgetting that Stefan-Boltzmann requires kelvin?Show answer
Like all thermal radiation formulas; using celsius gives nonsense.
What is treating emissivity as $1$ when it is not?Show answer
Real bodies emit less than a perfect black body. The Earth's emissivity is close to $1$ in the infrared; many metals have $\varepsilon \sim 0.05$.
What is saying radiation needs a medium?Show answer
Radiation crosses vacuum (sunlight, infrared into space).
Have a question we have not covered?
This dot-point answer is short enough that we have not extracted many short questions yet. Read the full dot-point answer or ask Mo, our study assistant, in the chat for follow ups.