Sound Production and States of Matter

What causes sound to be produced?

• Heat energy

• Vibrations of objects

• Movement of light

• Chemical reactions

In which state of matter are the particles packed tightly together and only able to vibrate in place?

• Liquid

• Gas

• Solid

• Plasma

Which of the following best describes the arrangement of particles in a liquid?

• Very close together but able to move past each other

• Far apart and moving freely

• Packed tightly and vibrating in place

• Arranged in a regular pattern with fixed positions

In which state of matter do particles move freely and are far apart from each other?

• Solid

• Liquid

• Gas

• Plasma

What is a compression in a sound wave?

• The region where particles are spread apart

• The region where particles are closer together

• The height of the sound wave

• The distance between two sound waves

What is a rarefaction in a sound wave?

• The region where particles are tightly packed

• The region where particles are spread apart

• The speed of sound through air

• The increase in wave frequency

Which of the following is an example of sound traveling through a solid?

• A radio playing music

• The sound of footsteps on the floor

• An airplane flying in the sky

• Water dripping into a bucket

In which state of matter does sound travel the fastest?

• Solid

• Liquid

• Gas

• Vacuum

When a sound wave moves through the air, the particles of air:

• Move with the wave to the listener

• Vibrate in place as the wave passes

• Stop moving

• Travel to the listener with the sound

Which of the following best describes the process of sound traveling through a medium?

• Sound travels through empty space at high speeds

• Sound travels by compressing and expanding the particles in a medium

• Sound travels when particles absorb and stop moving

• Sound travels by light waves bouncing off surfaces