| 1 | 2 | 3 | 4 | 5 | 6 |
| 7 | 8 | 9 |
Question 1
This question is about the properties of transverse and longitudinal waves. |
a) | The diagram below shows a transverse wave. Draw an arrow to show the direction of motion of points labelled A and B.
|
b) | Describe the motion of particles A and B in relation to the direction of energy transfer.
|
c) | Particle B oscillates with a frequency of 60 Hz. The distance between the positions of point A and point B is 50 cm. Calculate the speed of the transverse wave.
|
d) | Calculate the time period of the transverse wave.
|
|
Question 2
a) | Describe the difference between longitudinal and transverse waves.
|
b) | The image below shows how the displacement of a point on a transverse wave varies with time. State the amplitude of oscillation. Give your answer in metres.
|
c) | Calculate the frequency of oscillation.
|
d) | The speed of the wave is 4.5 ms-1. Calculate the wavelength of the transverse wave.
|
|
Question 3
A student is investigating the properties of waves. |
a) | Define the term time period of a wave.
|
b) | State the time period of the wave below.
|
c) | State the equation linking time period and frequency.
|
d) | Calculate the frequency of the waveform. Give your answer to 2 significant figures.
|
e) | On the trace below, sketch a wave which is twice the frequency and half the amplitude.
|
|
Question 4
This question is about transverse and longitudinal waves. |
a) | Sketch a labelled diagram of a longitudinal wave.
|
b) | Describe the movement of particles in a longitudinal wave relative to the direction of energy transfer.
|
c) | Give and example of a longitudinal wave.
|
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.
|
|
Question 5
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.
|
b) | Calculate the wavelength of the wave in the diagram.
|
c) | State the equation linking wave speed, frequency and wavelength.
|
d) | The signal generator is set to 75 Hz. Calculate the speed of the wave.
|
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.
|
|
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.
|
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.
|
c) | The diagram below shows the sound heard by each student. Explain which waveform each student hears and describe the differences.
|
|
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.
|
b) | The buoy moves up and down 15 times per minute. Calculate the time period of the waves.
|
c) | Calculate the frequency of oscillation.
|
d) | Describe how transverse waves differ to longitudinal waves.
|
|
Question 8
A student is investigating the relationship between wave speed, frequency and wavelength. The student is using a ripple tank. |
a) | Describe how a ripple tank creates waves that can be observed on a piece of paper below the ripple tank.
|
b) | The student counts how many waves pass a fixed point in 30 s. The total number of waves was 72. Calculate the frequency of the waves.
|
c) | The image below shows the projection of the wavefronts onto the piece of paper. Calculate the wavelength of the wave. Give your answer to 3 decimal places in m.
|
d) | State the equation linking wave speed, frequency and wavelength.
|
e) | Calculate the speed of the waves in the ripple tank. Give your answer to 3 decimal places in m/s.
|
|
Question 9
This question is about the polarisation of waves. |
a) | Explain what is meant unpolarised light.
|
b) | Describe how plane polarised light can be produced from an unpolarised light source.
|
c) | The diagram below shows two polarising filters, an unpolarised light source and a light detector. The arrows indicate the orientation of the plane of polarisation of the filters. Describe how the intensity of light received by the light detector will vary as the student rotates the second filter through 180°.
|
|
| 1 | 2 | 3 | 4 | 5 | 6 |
| 7 | 8 | 9 |