PAG 5.2 - Determining the Speed of Sound Using a Resonant Tube

Question 1

What is formed at the closed end of a tube when a stationary wave is formed?

Answer 1

Node

Question 2

What is a node?

Answer 2

Point on a stationary wave where there is zero displacement

Question 3

What forms at the open end of a tuber when a stationary wave is formed?

Answer 3

Antinode

Question 4

Describe the waveform of a stationary wave at its fundamental frequency in a tube with an open and closed end

Answer 4

There will be a node at the closed end and an antinode at the open end

Question 5

What must the length of the resonance tube be for it to resonate at the fundamental frequency/

Answer 5

λ/4

Question 6

How do you known when the tube is resonating?

Answer 6

Sound is loudest when the tube undergoes resonance

Question 7

What is the general form of the tube length required for resonance to occur?

Answer 7

λ(2n +1)/4

Question 8

What is the speed of sound in air?

Answer 8

340m/s

Question 9

Why must external temperature be constant for this experiment?

Answer 9

Speed of sound can vary with temperature of air