Volume & Vibrations

Question 1

If you strike a tuning fork with a gentle tap versus a hard blow, which statement best describes how the volume of the sound changes?

Accepted Answer

A harder blow makes the sound louder because it creates stronger vibrations in the fork.

Answer

A harder blow makes the sound higher in pitch because the vibrations move faster, not louder.

Answer

A harder blow makes the sound softer because it reduces the size of the vibrations.

Answer

The volume stays the same regardless of how hard you strike, because volume is only about the material of the fork.

Question 2

Jenna drops a wooden spoon onto a metal tin can. First she lets the spoon fall from a height of 2 cm, then she drops the same spoon from a height of 10 cm. Which statement best explains why the second drop makes a louder “ping”?

Accepted Answer

The higher drop makes the can shake with a bigger back‑and‑forth motion, so the sound is louder.

Answer

The higher drop makes the spoon hit the can faster, which raises the pitch and therefore makes the sound louder.

Answer

The higher drop makes the sound last longer, so we hear it as louder.

Answer

The higher drop makes the spoon bounce more after hitting the can, which reduces the loudness.

Question 3

A student hits a drum with a harder blow and notices the sound is louder. Which change in the drum’s vibration is the most direct reason for the increase in volume?

Accepted Answer

The drum skin vibrates with larger amplitude

Answer

The drum is placed in a larger room while vibrating with the same strength

Answer

The drum skin vibrates more quickly (higher frequency)

Answer

The drum skin vibrates for a longer time before stopping

Try three questions

If you strike a tuning fork with a gentle tap versus a hard blow, which statement best describes how the volume of the sound changes?

Jenna drops a wooden spoon onto a metal tin can. First she lets the spoon fall from a height of 2 cm, then she drops the same spoon from a height of 10 cm. Which statement best explains why the second drop makes a louder “ping”?

A student hits a drum with a harder blow and notices the sound is louder. Which change in the drum’s vibration is the most direct reason for the increase in volume?

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