chpt 2 "sound" physics

T/F

all waves carry energy from one location to another

• true

• false

Variations in all of the following identify specific waves as acoustic waves except.

• pressure

• parameters

• density

• acoustic variables

complete destructive interference

• pair of in-phase waves results in formation of a single wave greater of amplitude than either of its components

• pair of out-of-phase waves results in the formation of a single wave of lesser amplitude than at least one of its components

• when waves of different frequencies interfere, waves are in-phase , while others are out-of-phase

• when two out-of-phase waves are of equal amplitude

constructive interference

• pair of in-phase waves results in formation of a single wave greater of amplitude than either of its components

• pair of out-of-phase waves results in the formation of a single wave of lesser amplitude than at least one of its components

• when waves of different frequencies interfere, waves are in-phase , while others are out-of-phase

• when two out-of-phase waves are of equal amplitude

T/F

sound waves are transverse

• true

• false

Which of the following best describes waves B and C?

• in phase, will interfere constructively

• in phase, will interfere destructively

• out of phase, will interfere constructively

• out of phase, will interfere destructively

What do waves transfer from one location to another?

• matter

• molecules

• energy

• water

a pair of waves are considered In-phase waves when :

• their peaks(maximum value) & their troughs (minimum values) occur at the same time

• their peaks(maximum value) & their troughs (minimum values) occur at different times

• formation of a single wave of greater amplitude than either of its components

• formation of a single wave of lesser amplitude than that at least one of its components

• when there's two pairs of waves where their peaks & troughs occur at different times at equal amplitude

in a longitudinal wave, particles move in _____ that the wave propagates

• - ( wave is moving from left-right (black arrow) , particles are moving back & forth, and left-right)

• same direction

• perpendicular

• different direction

• transverse

in a _____ wave particles move in a direction that is perpendicular( at right angles) to the direction that the wave propagates

• -( wave moves left-right (black arrow) , particles in wave move up & down)

• longitudinal
• parallel
• perpendicular
• transverse