A longitudinal wave is: Countdown 10 A longitudinal wave is: A wave where the particle oscillation is perpendicular to the direction of wave motion A wave where the particle oscillation is parallelto the direction of wave motion Response Grid

How many nodes and antinodes? 4, 5 5, 8 5, 4 4, 8 Countdown 10 Response Grid

Which of the following sources of sound has the shortest wavelength? Countdown 10 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 Response Grid

When waves interference constructively to produce a pattern of light and dark regions they are Out of phase In phase Standing waves Cancelling one another Countdown 10 Response Grid

When a distant object approaches you, such as a galaxy in outer space, you will observe Countdown 10 The Doppler effect Blue shift Red shift Both 1 & 2 Both 1 & 3 Response Grid

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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 Response Grid Countdown 10

The period of a pendulum may be decreased by Shortening its length Increasing the mass of the bob Moving its equilibrium point Increasing its length Response Grid Countdown 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 Response Grid Countdown 10

The period of this wave is… 2 seconds 4 seconds 6 seconds Response Grid Countdown 10

The amplitude of this wave is… 4.8 meters 4.0 meters 2.4 meters Response Grid Countdown 10

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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 Response Grid Countdown 10

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 Response Grid Countdown 10

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 Response Grid Countdown 10

Which of the following factors has the greatest effect on the frequency of a swinging pendulum? Friction Amplitude Mass Length Response Grid Countdown 10

Vary with the mass of the bob 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 Response Grid Countdown 10

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

The human voice has been shown to be capable of shattering a glass The human voice has been shown to be capable of shattering a glass. This is possible due to… Resonance Doppler Effect Interference Harmonics Timbre Response Grid Countdown 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 Response Grid Countdown 10

You are traveling in a car near by a moving train You are traveling in a car near by a moving train. The train sounds its whistle, but you fail to hear the Doppler effect. This may be because… You are traveling away from the train too fast to detect it You are traveling towards the train too fast to detect it You are traveling at the same speed as the train You are traveling away from the train too slowly to detect it You are traveling towards the train to slowly to detect it Response Grid Countdown 10

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

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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 Response Grid Countdown 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 Response Grid Countdown 10

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

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

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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 Response Grid Countdown 10

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 Response Grid Countdown 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 Response Grid Countdown 10

Two waves meet and interfere constructively Two waves meet and interfere constructively. Which one of the following factors increases? Period Frequency Amplitude Wavelength Response Grid Countdown 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. Response Grid Countdown 10

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0.30 m; constructive 0.30 m; destructive 0.00 m; constructive A string is rigidly attached to a post at one end. Several pulses of amplitude 0.15 m sent down the string are reflected at the post and travel back down the string without a loss of amplitude. What is the amplitude at a point on the string where the maximum displacement points of two pulses cross? What type of interference is this? 0.30 m; constructive 0.30 m; destructive 0.00 m; constructive 0.00 m; destructive Response Grid Countdown 10

0.30 m; constructive 0.30 m; destructive 0.00 m; constructive A string is attached to a post loosely and free to move. Several pulses of amplitude 0.15 m sent down the string are reflected at the post and travel back down the string without a loss of amplitude. What is the amplitude at a point on the string where the maximum displacement points of two pulses cross? What type of interference is this? 0.30 m; constructive 0.30 m; destructive 0.00 m; constructive 0.00 m; destructive Response Grid Countdown 10

What type of wave is a sound wave? Mechanical and Transverse Mechanical and Longitudinal Electromagnetic and Transverse Electromagnetic and Longitudinal Response Grid Countdown 10

The main factor that determines the speed of a sound wave is… The amplitude The frequency The intensity The properties of the medium The wavelength Response Grid Countdown 10

Which of the following factors determines the pitch of a sound? Amplitude Intensity Frequency Phase Speed Response Grid Countdown 10

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You will not be able to hear this sound While driving, you hear a police car siren approaching from behind. If the siren produces a 1500 Hz sound, you will hear a sound… Greater than 1500 Hz Less than 1500 Hz Equal to 1500 Hz You will not be able to hear this sound Response Grid Countdown 10

At room temperature, sound will travel most slowly through which of the following? Iron Water Aluminum Mercury Helium Response Grid Countdown 10

An observer waits for an approaching train An observer waits for an approaching train. The train blows its whistle approaches the station at a constant speed. The frequency of sound detected by the observer compared to the original whistle will be… higher lower Increasingly higher Increasingly lower Response Grid Countdown 10

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