Sound Waves

Sound is produced when an object...

• Moves

• Makes a noise

• Vibrates

• Falls

When something vibrates, it passes the vibration to...

• its surrounding environment

• your ears

• your hands

• itself

Sound energy travels in...

• Longitudinal waves

• Transverse waves

When objects vibrate, they create regions of space in which the air particles are bunched together called...

• Conductions

• Compressions

• Rarefactions

• Close vibrations

When objects vibrate, they create regions of space in which the air particles are spread out called...

• Conductions

• Compressions

• Rarefactions

• Loose vibrations

In a longitudinal wave, the particles move...

• In an up and down motion

• In the same direction that the wave is moving

True or False:

Sound energy needs a medium (solid, liquid or gas) to travel through.

• True

• False

True or False:

Sound energy can travel through outer space (a vacuum).

• True

• False

Reorder the following:

Which medium does sound travel further through, highest to lowest distance.

• Gases

• Solids

• Liquids

Why does sound travel a longer distance through solids?

• Because the particles are loosely bonded

• Because the particles are spread out

• Because the particles are tightly packed together