Question

Question 14 (1 point)

Waves show both constructive and destructive____.

Question 14 options:

	propagation
	interference
	resonance
	construction

Question 15 (1 point)

The longest possible full wave for a wire will be ___ as the wire.    

Question 15 options:

	half as long
	about the same length as
	3 times as long
	twice as long

Question 16 (1 point)

Dead spots in an auditorium may be caused by__.

Question 16 options:

	the Doppler Effect
	antinodes
	propagation
	interference

Question 17 (1 point)

If we double frequency of a note, the sound changes by a(n) ___.        

Question 17 options:

	chord
	chord
	hertz.
	octave

Question 18 (1 point)

Which of the words below indicates the number of SECONDS per wave?

Question 18 options:

	chord
	hertz
	frequency
	period

Question 19 (1 point)

Which of the words below indicates the number of WAVES per SECOND?

Question 19 options:

	seconds
	period
	chord
	frequency

Question 20 (1 point)

The amplitude of a transverse wave is measured from_____.

Question 20 options:

	the middle (equilibrium) of the wave to the top or bottom of the wave
	the two closest points in phase and position
	node to node
	the bottom of the wave to the top of the wave

Answer 1

Answers:

Question (14)Answer : interference

Question (15)Answer : twice as long

Question (16)Answer : interference

Question (17)Answer : octave  

If we keep doubling this frequency, we find that all of the resulting pitches sound similar, except that each one is higher than the last. In fact, they are all the note A, just like the original, but they are all one octave apart from each other.

Question (18)Answer : period

Question (19)Answer : frequency

Question (20)Answer : the middle (equilibrium) of the wave to the top or bottom of the wave