Sound Waves and Vibrations

How is sound produced?

• By the reflection of light

• By the vibration of an object

• By the movement of air

• By the rotation of the Earth

What role do vibrations play in producing sound?

• Vibrations cause silence

• Vibrations produce light

• Vibrations have no effect on sound

• Vibrations create sound waves

Tags

NGSS.MS-PS4-1

What are some examples of objects that produce sound through vibrations?

• Balloons, rubber bands, paper clips, feathers

• Piano keys, cymbals, maracas, triangle

• Guitar strings, drum heads, vocal cords, tuning forks

Explain how the vocal cords produce sound.

• Sound is produced by the movement of the tongue

• The vocal cords vibrate as air passes through them, producing sound.

• The vocal cords produce sound by rubbing against each other

• The vocal cords produce sound by expanding and contracting

What is the difference between high-pitched and low-pitched sounds?

• High-pitched sounds are quieter than low-pitched sounds.

• High-pitched sounds have a lower frequency and low-pitched sounds have a higher frequency.

• High-pitched sounds have a higher frequency and low-pitched sounds have a lower frequency.

• High-pitched sounds travel faster than low-pitched sounds.

How does the size and shape of an object affect the sound it produces?

• The size and shape of an object have no effect on the sound it produces.

• The sound produced by an object is only affected by its color.

• The sound produced by an object is determined by the material it is made of.

• The size and shape of an object affect the sound it produces.

Why do we hear sound better through solids than through gases?

• Solids have a lower density and less elasticity compared to gases.

• Solids absorb sound waves more than gases do.

• Solids have higher density and better elasticity compared to gases.

• Solids have a lower speed of sound compared to gases.

What is the relationship between the frequency of vibrations and the pitch of sound?

• Higher frequency vibrations produce lower pitch sounds

• Frequency of vibrations has no effect on the pitch of sound

• Lower frequency vibrations produce higher pitch sounds

• Higher frequency vibrations produce higher pitch sounds, while lower frequency vibrations produce lower pitch sounds.

How does sound travel through different mediums?

• By creating a vacuum in the medium

• By changing the pitch of the sound

• By emitting electromagnetic waves through the medium

• By causing the particles in the medium to vibrate and transmit the sound energy.

Tags

NGSS.MS-PS4-2

Explain how musical instruments produce sound through vibrations.

• The sound is produced by the instrument's color

• The vibrations of the instrument cause sound waves to be produced.

• The vibrations of the instrument cause light waves to be produced

• The sound is produced by the instrument's temperature

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2