THE ABSORPTION AND REFLECTION OF SOUND

What is a medium?

• Why sound travels

• What sound travels through

Sound can travel through....

• solids

• liquids

• gases

• all of the above

Sound must have a medium to travel through.

• True

• False

A high frequency will have a _________ pitch.

• low

• high

What is a periodic back and forth motion that transmits energy?

• Wave

• Amplitude

• Frequency

What is the portion in the wave where the particles are spread out?

• Crest

• Rarefaction

• Trough

• Wavelength

What is the length of a single wave?

• Frequency

• Wavelength

• Velocity

What is the main factor affecting the speed of sound in air?

• temperature of the air

• temperature of the sound

• density of the air

• frequency of the sound

What is a sound heard distinctly after being reflected from some object?

• Echo

• Pitch

• Note

Volume is measured in decibles and means how ___________ or __________ a sound is.

• highness or lowness

• loud or soft

• fast or slow