Sound

______________ is the amount of energy in a sound wave (per unit of area and unit of time)

• intensity

• mechanical

• frequency

• pitch

Sound is a form of energy produced by ______________.

• vibrations

• distances

• prisms

• speed

Sound waves travel the FASTEST through _____________.

• gases
• liquids
• solids

Tags

NGSS.MS-PS4-2

If a sound has a high amplitude then it also has a ____________!!!

• fast echo
• slow pitch
• high volume
• low volume

Tags

NGSS.MS-PS4-1

Sound waves travel the SLOWEST through _____________.

• gases
• solids
• liquids

Sound travels as

• transverse waves
• longitudinal waves
• seismic waves
• air waves

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

As air particles are pushed together, they create a region of higher density and pressure in a longitudinal wave.  These areas are called:

• sound waves
• rarefactions
• compressions
• transverse wave

As air particles become less crowded a region of lower density and pressure is created. This part of a longitudinal wave is called a: 

• compression
• sound wave
• rarefaction
• transverse wave

Sound travels at different speeds through different mediums.  Through which medium would your voice travel the fastest?

• Air on a cold winter morning
• Air on a hot summer afternoon
• A metal wall
• A pool

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Your __________ vibrate when you talk

• stomach
• lips
• ears
• vocal cords