REQUIRED PRACTICAL: INVESTIGATING IR EMISSION

Question 1

STEP 1:

Answer 1

• put the Leslie cube on a heat-proof mat

Question 2

STEP 2:

Answer 2

• fill the cube with boiling water and wait for the cube to heat up

Question 3

STEP 3:

Answer 3

• using an IR detector, record the temperature , which is a guide to the amount of infrared radiation being emitted

Question 4

Which side gives off the most infrared radiation?

Answer 4

• matte black

Question 5

Which side gives off the least infrared radiation?

Answer 5

• shiny silver

Question 6

How could we improve the reliability of our results?

Answer 6

• repeat the experiment more than once and compare results