Sound

What happens to the pitch of a sound when an object vibrates faster?

• The sound pitch becomes lower.

• The sound pitch remains the same.

• The sound pitch becomes higher.

• The sound pitch becomes muffled.

What is the unit of measurement for sound intensity?

• Hertz (Hz)

• Decibel (dB)

• Pascal (Pa)

• Watt (W)

What is an example of a high-pitched sound?

• A whistle.

• A drum.

• A bass guitar.

• A tuba.

How do sound waves travel?

• Through vibrations in the air, water, or solids.

• By moving in a straight line without any medium.

• As electromagnetic waves in a vacuum.

• Through the movement of particles in a gas only.

What does it mean to vibrate?

• To shake back and forth.

• To remain still and quiet.

• To move in a circular motion.

• To change color rapidly.

What is resonance?

• When an object vibrates at its natural frequency due to external vibrations.

• When an object remains still despite external forces.

• When an object vibrates randomly without a specific frequency.

• When an object absorbs all external vibrations without any response.

What is the relationship between energy and sound volume?

• More energy in vibrations creates louder sounds.

• Sound volume is independent of energy.

• Higher frequency always results in louder sounds.

• Energy has no effect on sound volume.

What is sound?

• Vibrations that travel through the air or another medium.

• Light waves that are visible to the human eye.

• Electrical signals transmitted through wires.

• Particles moving in a vacuum.

What is the difference between noise and music?

• Noise is random and unpleasant sounds; music is organized and pleasant sounds.

• Noise is a type of music that is not structured.

• Music is always loud and noise is always soft.

• Noise can be pleasant if it has a rhythm.

What does sound volume describe?

• How loud a sound is.

• The pitch of a sound.

• The duration of a sound.

• The frequency of a sound.