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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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