Emission And Absorption Of Infrared Radiation (physics Only) (GCSE Physics)

Why does a greenhouse trapping infrared help keep plants warm?

Which experimental change would help measure emissivity more accurately with a thermal camera?

A student heats two identical metal blocks to the same temperature. One block is painted black and the other polished. When left to cool in the same room, which cools faster and why?

Which statement explains why dark soil warms faster in sunlight than light-coloured sand?

What does Kirchhoff’s law of thermal radiation state in simple terms?

How would you expect the emissivity of a surface to affect its measured temperature using a non-contact infrared thermometer if the instrument assumes emissivity = 0.95?

If two identical plates are at the same temperature but one is painted matt black and the other white, what happens when both are placed in a colder room?

Why do matt surfaces usually emit more infrared radiation than shiny surfaces?

A shiny metal foil is placed over a hot object. What is the main effect of the foil on infrared exchange?

A thermal camera produces an image of a scene by detecting emitted infrared. Why might two objects at the same temperature appear different in a thermal image?

Which sentence correctly contrasts conduction and radiation?