Waves, Interference, and Harmonics

What type of interference is represented in this diagram?

• Constructive

• Destructive

What type of interference is represented in the diagram?

• Constructive

• Destructive

True or False? Two waves cannot exist in the same space or in the same medium at the same time.

• True

• False

Through which material does sound travel slowest?

Hint: Sound travels faster in solids than in liquids than in gases.

• Water

• Paper

• Aluminum

• Air

• None of the above

T or F: Constructive interference between two waves will produce a single wave of greater amplitude.

• TRUE

• FALSE

How loud or soft a sound is, is related to the _____________ of the wave

• amplitude
• frequency
• wave length
• rest position

In a standing wave, destructive interference creates points of zero amplitude called nodes. Which letters represent this.

• A,E,F
• B,D,F
• B,C,D
• A,C,F

In a standing wave, constructive interference creates larger amplitudes.  The points of maximum amplitude are antinodes.  The letters for these are?

• B,C,D
• A,E,F
• A,C,F
• B,D,E

Two transverse waves overlap.  Crests overlap with troughs.  Troughs overlap with crests.  The waves are

• In-phase
• Out-of-phase
• In-synchronicity
• Out-of-synchronicity

If two overlapping waves are in-phase, the resultant wave will have ______ compared to the two waves.

• Greater amplitude
• Greater frequency
• Greater wavelength
• Greater wave speed