Grab-bag: It isn't always black or white
In this activity you will investigate the infra-red emissivity and absorption by different kinds of surface. Related concepts Energy, environment Guiding questions Conceptual: How does energy transfer as heat? Debatable: How can we manage energy transfer sustainably? Inquire Look at the image below. It shows Crookes Radiometer (your teacher may have one to demonstrate to you). Observe what happens to the radiometer....