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Question 1
This question is about wave properties. |
a) | Label the diagram below to show the wavelength.
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b) | This is a transverse wave. Describe one similarity and a difference between longitudinal and transverse waves.
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c) | Give an example of a transverse wave.
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d) | State the equation linking wave speed, frequency and wavelength
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e) | Calculate the wavelength of a wave that has a speed of 2 m/s and a frequency of 4 Hz.
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Question 2
A student is investigating the properties of waves. |
a) | Define the term time period of a wave.
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b) | State the time period of the wave below.
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c) | State the equation linking time period and frequency.
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d) | Calculate the frequency of the waveform. Give your answer to 2 significant figures.
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e) | On the trace below, sketch a wave which is twice the frequency and half the amplitude.
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Question 3
This question is about transverse and longitudinal waves. |
a) | Sketch a labelled diagram of a longitudinal wave.
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b) | Describe the movement of particles in a longitudinal wave relative to the direction of energy transfer.
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c) | Give and example of a longitudinal wave.
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d) | The student is using a wave which has a speed of 330 m/s and a frequency of 4.5 kHz. Calculate the wavelength of the wave.
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Question 4
A student is investigating the speed of waves. The diagram below shows the apparatus that the student uses. |
a) | State the name of the measuring instrument the student should use to measure the wavelength.
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b) | Calculate the wavelength of the wave in the diagram.
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c) | State the equation linking wave speed, frequency and wavelength.
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d) | The signal generator is set to 75 Hz. Calculate the speed of the wave.
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e) | The student increases the frequency output of the signal generator and decreases the amplitude. The student moves the wooden bridge until 3 peaks are seen again. Describe how the observed pattern will be different to the one in the diagram.
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Question 5
This question is about waves. |
a) | Which arrow represents the wavelength? A B C D
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b) | Which arrow represents the amplitude of the wave? A B C D
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c) | Complete the sentence. Transverse waves have.. A oscillations parallel to the direction of vibration B oscillations perpendicular to the direction of energy transfer C oscillations parallel to the direction of energy transfer D random oscillations
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d) | what is the definition of frequency? A the number of time periods per second B the time it takes for 1 complete wave C the number of waves per second D the wave speed multiplied by the wavelength
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Question 6
A student holds a ball that contains a buzzer which emits a sound at 500 Hz. The speed of sound in air is 330 m/s. |
a) | Calculate the wavelength of the sound produced.
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b) | The student throws the ball to a friend who catches the ball. The students each hear a slightly different sound. Explain how the sound heard by student A is different to the sound heard by student B.
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c) | The diagram below shows the sound heard by each student. Explain which waveform each student hears and describe the differences.
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Question 7
This question is about water waves. As waves pass the buoy, it oscillates. |
a) | Describe the movement of the buoy as the water passes it.
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b) | The buoy moves up and down 15 times per minute. Calculate the time period of the waves.
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c) | Calculate the frequency of oscillation.
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d) | Describe how transverse waves differ to longitudinal waves.
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Question 8
A student is investigating the speed of sound in air. The student's method is below.
The students records their data in a table. |
a) | Calculate the average time for the sound to travel 100 m.
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b) | Calculate the speed of sound using the student's results.
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c) | The accepted value for the speed of sound in air is 330 m/s. Explain why the student's value is different to this value.
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d) | Describe how the student could reduce the uncertainty in their experiment but use the same equipment.
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