Waves and the Electromagnetic Spectrum RQP- how different surfaces affect infrared intensity

Question 1

apparatus setup

Answer 1

• leslie cube on a heatproof mat with one material on each side: matt black, matt white, shiny black, shiny silver
• infrared detector (attached to a meter of some sort) on the side, from equal distance away from the cube each time

Question 2

highest to lowest infrared intensity

Answer 2

• matt black
• shiny black
• matt white
• shiny silver

Question 3

step 1

Answer 3

Place a Leslie cube on a heat-resistant mat. Fill it, almost to the top, with boiling water and replace the lid.

Question 4

step 2

Answer 4

Leave for one minute. This is to enable the surfaces to heat up to the temperature of the water.

Question 5

step 3

Answer 5

Use the infrared detector to measure the intensity of infrared radiation emitted from each surface, or the temperature of the surface. Make sure that the detector is the same distance from each surface for each reading.