Answers to AQA GCSE Perfect Black Body(Physics)

Practice Question

1.Define the term perfect black body

An object that absorbs all of the radiation incident on it

2.In the table below tick the boxes next to the correct statements for a perfect black body

StatementTick if correct
Absorbs all of the incident radiationTick
Can reflect radiation
Can transmit radiation
Is the best possible emitterTick

3. A perfect black body has a constant temperature. What can you deduce about the incident and emitted radiation for the perfect black body?

Incident radiation = Emitted radiation