Question 59
In groups, investigate how different surfaces reflect or absorb heat transferred through radiation.
1 Arrange equal-sized pieces of aluminium foil and black paper on a table.
2 Place the lamp so that it shines directly onto the surfaces from the same distance.
3 Place a thermometer on each surface to measure the temperature over time.
4 Observe the differences in how much each surface heats up after 10 minutes. Which surface has a higher temperature, and which has a lower temperature?
1 Arrange equal-sized pieces of aluminium foil and black paper on a table.
2 Place the lamp so that it shines directly onto the surfaces from the same distance.
3 Place a thermometer on each surface to measure the temperature over time.
4 Observe the differences in how much each surface heats up after 10 minutes. Which surface has a higher temperature, and which has a lower temperature?
