Exploring Tube Resonance and Standing Waves

What is the basis for several musical instruments like the pipe organ?

• Controlling the frequencies in tubes

• Using electronic amplifiers

• Adjusting string tension

• Changing the material of the instrument

What happens when you blow air over the top of a bottle or tube?

• It creates a vacuum

• It resonates

• It changes color

• It heats up

What is the distance between a node and an antinode in a tube?

• 3/4 of the wavelength

• 1/4 of the wavelength

• 1/2 of the wavelength

• The full wavelength

How can you adjust the length of a tube to change its resonant frequency?

• By adding water

• By heating it

• By changing its material

• By painting it

What is the speed of sound at room temperature?

• 360 m/s

• 340 m/s

• 320 m/s

• 300 m/s

In a double open tube, what is the relationship between the wavelength and the tube length?

• The wavelength is twice the tube length

• The wavelength is four times the tube length

• The wavelength is equal to the tube length

• The wavelength is half the tube length

What is the fundamental vibration in a tube?

• The fifth harmonic

• The second harmonic

• The lowest frequency that fits in the tube

• The highest frequency that fits in the tube

In double open tubes, which harmonics are allowed to resonate?

• Only even harmonics

• Only odd harmonics

• All integer multiples of the fundamental

• None of the above

What happens to the wavelength when you cover the open end of a tube?

• It becomes half the length of the tube

• It remains the same

• It becomes four times the length of the tube

• It becomes twice the length of the tube

What is the effect on frequency when the wavelength becomes four times the length of the tube?

• The frequency doubles

• The frequency remains the same

• The frequency decreases

• The frequency increases