Exam 7 Numbers 11-15

1. 13. Two waves meet and interfere constructively. Which one of the following factors increases?

Period

Amplitude

Frequency

Wavelength

2. 11. When two transverse waves traveling through a medium meet and exactly coincide, the resulting displacement of the medium

Is the sum of the displacements of each wave.

Is zero.

Is always greater than the displacement of either wave alone.

Is always destructive.

3. 15. Two mechanical waves can occupy the same space at the same time because waves

Are matter.

Are displacements of matter.

Do not cause interference patterns.

Cannot pass through one another.

4. 12. When two waves having displacements in opposite directions meet, _______________ occurs.

Complete cancellation

No interference

Constructive interference

Destructive interference

5. 14. The diagram above represents two pulse waves moving toward each other through a medium. The two waves will exactly coincide when they reach point A. At point A, the amplitude of the combined waves will be

Twice that of either wave alone.

The same as either wave alone.

Half that of either wave alone.

Zero.