Question: question 9 4 marks summarise why the inside of a...
Question 9 (4 marks)
Summarise why the inside of a car warms up on a cold but sunny day.
Question 11 (5 marks)
Draw separate diagrams of a didgeridoo resonating at is fundamental frequency. In one diagram, show the pressure variation and in the second show the displacement variation.
a. Pressure variation (1 Mark)
b. Displacement variation (1 Mark)
c. Explain why the air at the closed end is a pressure antinode and a displacement node. (3 Marks)