1. A longitudinal wave is:
A wave where the oscillation is perpendicular to the direction of motion
A wave where the oscillation is in the same direction as the direction of motion

2. How many nodes and antinodes?
4, 5
5, 8
5, 4
4, 8

3. If the amplitude is twice as big, which of the following is true of a pendulum?
The pendulum swings twice as far away from the center
Its period is twice as long
Its frequency is twice as high
It must have twice the mass

4. In any system in simple harmonic motion, the restoring force acting on the mass in the system is proportional to
Displacement
The length of a pendulum
The mass
frequency

5. Which of the following sources of sound has the shortest wavelength?
A female soprano singer at 2,000 Hz
A bass guitar at 150 Hz
A male voice at 500 Hz
The rumble of thunder at 75 Hz

6. Leader Board 500 Houlahan Fejko Stafford Gallagher 400 Rusk
21. Yonkers
Longstaff
Lambert
Ward
O'Callaghan

7. In an oscillating mass-spring system, the velocity of the mass is greatest when the mass is
At the point of maximum displacement
Halfway between the equilibrium point and maximum displacement
At a point where acceleration is greatest
At the equilibrium point

8. Two successive crests of a transverse wave are 1. 20 m apart
Two successive crests of a transverse wave are 1.20 m apart. Eight crests pass a given point every 12.0 s. What is the wave speed?
0.667 m/s
1.80 m/s
0.800 m/s
9.60 m/s

9. The period of a pendulum may be decreased by
Shortening its length
Increasing the mass of the bob
Moving its equilibrium point
Decreasing the mass of the bob

10. If the pendulum completes exactly 12 cycles in 2
If the pendulum completes exactly 12 cycles in 2.0 minutes, what is the frequency of the pendulum?
0.10 Hz
0. 17 Hz
6.0 Hz
10 Hz

11. As the swinging bob of a pendulum moves farther from its equilibrium position, the pendulum’s _________ increases
Frequency
Mass
Restoring force
Length

12. Leader Board 900 Stafford 800 Rusk 21. Yonkers Houlahan Fejko Lambert
Ward
700
Hradisky
French
Opet

13. The period of this wave is…
2 seconds
4 seconds
6 seconds

14. The amplitude of this wave is…
4.8 meters
4.0 meters
2.4 meters

15. The GPE of the bob of a swinging pendulum is at its maximum when the bob is at
Maximum displacement
The equilibrium point
The center of its swing
Minimum displacement

16. In a system in simple harmonic motion, the amplitude depends on
Frequency
Wavelength
The position of the equilibrium point
Energy of the system

17. A wave with an amplitude of 0
A wave with an amplitude of 0.75 m has the same wavelength as a second wave with an amplitude of 0.53 m. The two waves interfere. What is the amplitude of the resultant wave if the interference is constructive?
0.22 m
0.53 m
0.75 m
1.28 m

18. Leader Board 1400 Stafford 1300 Rusk 21. Yonkers Houlahan Fejko Ward
1200
Lambert
Opet
Buzalka
1100
Hradisky

19. A slinky is stretched to a length of 7 m
A slinky is stretched to a length of 7 m. All of the following standing wave wavelengths are possible except…
21 m
14 m
7 m
3.5 m

20. A total of 5 s passes as a child completes one complete swing on a playground swing. The period of the swing is
1/5 s
20 s
5 s
1 s

21. The frequency of a certain pendulum is 0. 5 Hz
The frequency of a certain pendulum is 0.5 Hz. The period of this pendulum is
0.2 s
0.5 s
2 s
5 s

22. Which of the following factors has the greatest effect on the frequency of a swinging pendulum?
Friction
Amplitude
Mass
Length

23. If a given pendulum is moved from Earth to a location where the gravitational acceleration is greater than Earth’s, the frequency of the pendulum’s swing will
Increase
Decrease
Be unchanged
Vary with the mass of the bob

24. Leader Board 1800 Houlahan 1700 Rusk Fejko Ward Stafford 1600
21. Yonkers
1500
Lambert
1400
Gallagher
Buzalka
1300
Hradisky

25. You have constructed an oscillating mass-spring system for an experiment. In order to increase the frequency of the system, you could
Decrease the initial displacement
Use a greater mass
Use a spring with a higher spring constant
Increase the period of oscillation 10

26. A wave with an amplitude of 0
A wave with an amplitude of 0.75 m has the same wavelength as a second wave with an amplitude of 0.53 m. If the two waves destructively interfere, what is the amplitude of the resultant wave?
0.22 m
0.53 m
0.75 m
1.28 m 10

27. If the length of a pendulum gets longer, the period of the pendulum:
Gets shorter
Stays the same
Not enough information 10

28. The material through which a mechanical wave travels is
A medium
Empty space
Water
Air 10

29. When a transverse wave passes through water, water molecules are displaced
Permanently in the direction of the wave motion
Permanently in a direction perpendicular to the wave
Temporarily in the direction of the wave motion
Temporarily in a direction perpendicular to the wave 10

30. Leader Board Participant 1 Participant 2 Participant 3 Participant 4
Participant 1
Participant 2
Participant 3
Participant 4
Participant 5

31. A wave that is produced by a single motion that does not repeat is a ________.
Transverse wave
Continuous wave
Pulse
Compression 10

32. The distance between two successive troughs of a transverse wave is the wave’s
Amplitude
Wavelength
Frequency
Rarefaction 10

33. Move your foot up and down more frequently
Suppose you are dangling your foot in a swimming pool, making ripples (waves) by moving your foot up and down. What could you do to make the ripples travel faster through the water?
Move your foot up and down more frequently
Move your foot up and down less frequently
Move your foot up and down more strongly
None of the above 10

34. When a wave on a rope strikes a free boundary, the wave is
Reflected and inverted
Reflected but not inverted
Not reflection
absorbed 10

35. A wave is passing through a uniform medium
A wave is passing through a uniform medium. As the frequency of this wave increases, its wavelength
Depends on amplitude
Decreases
Increases
Does not change 10

36. Leader Board Participant 1 Participant 2 Participant 3 Participant 4
Participant 1
Participant 2
Participant 3
Participant 4
Participant 5

37. If the amplitude of a mechanical wave is tripled, the rate of energy transfer of the wave is _____ .
Increased by a factor of 9
Decreased by a factor of 9
Increased by a factor of 3
Decreased by a factor of 3 10

38. A ____ wave travels through a medium as a series of compressions and rarefactions.
Sine
Longitudinal
Pulse
Transverse 10

39. 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 10

40. When two waves having displacements in opposite directions meet, ____ occurs.
Complete destructive interference
No interference
Constructive interference
Destructive interference 10

41. A wave pattern on a stretched string appears to be stationary
A wave pattern on a stretched string appears to be stationary. This wave pattern is an example of
A longitudinal wave
A non-periodic wave
A pulse wave
A standing wave 10

42. Leader Board Participant 1 Participant 2 Participant 3 Participant 4
Participant 1
Participant 2
Participant 3
Participant 4
Participant 5

43. In a standing wave on a vibrating string, a point that appears to remain stationary is a(n)
Antinode
Point of constructive interference
Node
rarefaction 10

44. An ocean wave has a frequency of 2 Hz and a speed of 20 m/s
An ocean wave has a frequency of 2 Hz and a speed of 20 m/s. What is the wavelength of this wave?
0.1 m
5 m
10 m
40 m 10

45. Two waves meet and interfere constructively
Two waves meet and interfere constructively. Which one of the following factors increases?
Period
Frequency
Wavelength
None of the above 10

46. You sit in the audience and listen to a concert band play
You sit in the audience and listen to a concert band play. Which instruments sound reaches your ears first, the flute or the trombone?
The flute
The trombone
They reach your ears at the same time. 10

47. If a 48 kg mass oscillates on a spring with a spring constant of 12 N/m, what is the period of the oscillation?
8π seconds
4π seconds
π seconds
π/2 seconds 10

48. Leader Board Participant 1 Participant 2 Participant 3 Participant 4
Participant 1
Participant 2
Participant 3
Participant 4
Participant 5

49. A certain oscillating mass-spring system has a period of 1
A certain oscillating mass-spring system has a period of 1.2 s with a 1.0 kg mass. What will the period be when a 4.0 kg mass is substituted for the 1.0 kg mass?
4.8 s
2.4 s
0.6 s
0.3 s 10

50. The spring constant in a given oscillating mass-spring system may be changed by
Increasing the mass
Decreasing the mass
Decreasing the initial displacement
None of the above 10

51. If the pendulum’s length is 2
If the pendulum’s length is 2.00 m and the acceleration due to gravity is 9.80 m/s2, how many complete oscillations does the pendulum make in 5.00 min?
1.76
21.6
106
239 10

52. In an oscillating mass-spring system, the distance of the maximum compression distance of the spring is a measure of
Amplitude
Frequency
Period
Equilibrium 10

53. Final Leader Board Participant 1 Participant 2 Participant 3
Participant 1
Participant 2
Participant 3
Participant 4
Participant 5