Sound

Sound can be defined as --

• compression waves that travel through a vacuum

• a form of mechanical energy produced and transmitted by vibrating matter

• a form of radiant energy transmitted into mechanical energy

• electricity that is produced and transmitted

As sound waves travel, parts of the waves are bunched close together. This is called --

• a rarefaction wave

• the pitch

• a compression wave

• the frequency

In sound waves, energy is transferred through --

• vibrating matter

• light particles

• heat waves

• electrons

What best describes the relationship between vibration and pitch?

• The faster the vibration, the higher the pitch

• The slower the vibration, the higher the pitch.

• The faster the vibration, the lower the pitch.

What happens to sound in a vacuum?

• The pitch is lowered.

• The sound cannot travel

• The sound is amplified

• The frequency increases

Sound will travel fastest through --

• water at the bottom of the ocean

• water at the shallow end of a swimming pool

• a block of wood

• the air in the classroom

In which situation will sound NOT be produced?

• large meteors crashing in outer space

• a whale singing in the ocean

• a police officer blowing a whistle

• someone knocking on a metal door

What does this person with the glass against the wall know about how sound travels?

• Sound travels slowest through solids.

• Sound travels fastest through gases.

• Sound travels slowest through liquid

• Sound travels fastest through solids.

The particles of a gas are farther apart than the particles in other phases of matter; therefore --

• sound travels the fastest through gases

• sound travels slower in solids than in gases

• sound travels the fastest through liquids

• sound travels the slowest through gases

From slowest to fastest, what is the order the sound waves would travel through the medium?

• a table, water, air

• air, water, a table

• water, air, a table

• a table, air, water