REQUIRED PRACTICAL: INVESTIGATING IR ABSORPTION

Question 1

STEP 1:

Answer 1

• set up the apparatus

Question 2

STEP 2:

Answer 2

• place the bunsen burner in between the metal plates

Question 3

STEP 3:

Answer 3

• record which ball falls first

Question 4

Which ball fell first?

Answer 4

• the one attached with wax to the black side

Question 5

What does this tell you about which side absorbs the most IR radiation?

Answer 5

• the black side most absorb the most radiation as it heats up faster and melts the wax

Question 6

How can we make this investigation a fair test?

Answer 6

• make sure the flame is the same distance from each metal plate
• make sure each ball has the same mass
• make sure each metal plate has the same thickness
• make sure each ball is fixed with the same volume of wax