G4 - sound

sound is originated due to the ...................... of objects

• movement

• vibration

• running out

The loudness of a sound is called

• the sound wave.

• the volume

• the amplitude

• the pitch

What happens to a sound if the frequency of the vibrations increases?

• The pitch increases

• The volume decreases

• The sound gets louder.

Sound waves cannot travel through________________ .

• a solid

• gases

• empty space

• liquids

As the frequency of a sound wave increases, the wavelength____________ .

• decreases

• stays the same

• increases

The harder you strike a drum, the greater the sound's ___________.

• pitch

• medium

• volume

• frequency

The unit of frequency is measured in Hertz.

• True

• False

When you make sounds by plucking a rubber band, you make the rubber band move back and forth very quickly. This movement is called______________

• loudness

• amplitude.

• pitch.

• vibration.

sounds speed is fastest in ................

• solid

• liquid

• gas

the speed of sound is slowest in

• solids

• liquids

• gasses