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Form 2 Physics Wave 1 Video Questions and Answers

Form 2 Physics Wave 1 Video Questions and Answers.
Browse through high quality physics video question and answers on waves 1. Detailed and well explained solutions.

Lessons (20)

• 1.    Figure 10 shows a displacement-distance graph for a certain wave motion. (i) Indicate on the figure with letters A and B any two points that are in phase. (1 mark) (ii) Determine the :( 1 marks) (I) amplitude of the wave (1 marks) (II) Wavelength of the wave (1 marks) (iii) Given that the frequency of the waves is 50 Hz, determine the: (I) period (1 marks) (II) Speed of the wave
  4m 3s

• 2.    Figure 3 shows a transverse wave. Determine the frequency of the wave.
  1m 26s

• 3.    Figure 3 shows how the displacement of a point varies with time as a wave passes it.
  1m 50s

• 4.    A ship in an ocean sends out an ultra sound whose echo is received after 3 seconds. If the wavelength of the ultra sound in water is 7.5 cm, and the frequency of the transmitter is 20 kHz, determine the depth of the ocean.
  3m 0s

• 5.    State two differences between electromagnetic waves and mechanical waves.
  3m 35s

• 6.    a) Figure 12, shows a displacement – time graph for a progressive wave. i).State the amplitude of the wave. (1 mark) ii). Determine the frequency of the waves (4marks) iii) Given that the velocity of the wave is 20m/s, determine its wavelength. (3marks)
  2m 57s

• 7.    Figure 6, shows standing waves on a string. It is drawn to a scale of 1:5 (a) Indicate on the diagram the wavelength of the standing wave. (1 mark) (b) Determine the wavelength of the wave. (1 mark)
  2m 2s

• 8.    The wavelength of a radio wave is 1km. Determine its frequency. (Take the speed of light as 3.0 x 108 m/s) (KCSE 2010 paper 2 question 13.)
  1m 25s

• 9.    Figure 5, shows how the displacement of a point varies with time as a wave passes it. On the same diagram, draw a wave which passes the point with half the amplitude and twice the frequency of the one shown.
  1m 5s

• 10.    Figure 2 shows how the displacement varies with time for a certain wave. Determine the frequency of the wave.
  0m 56s

• 11.    Figure 4 shows a hack-saw blade clamped horizontally on a bench and the free end is made to vibrate about the rest position.
  0m 0s

• 12.    Figure 4 shows the displacement-time graph for a certain wave.
  1m 30s

• 13.    A long coil is attached to a vibrating blade as shown in Figure 3 State the type of mechanical wave generated by the set-up and mark alongside the coil, the length corresponding to the wavelength, of the wave.
  0m 0s

• 14.    Figure 15 shows an arrow which indicates the direction of travel of a wave in a medium .P is a particle of the medium that is in path of the wave. In the space provided sketch diagram to show how the particle P moves when the wave is i).A transverse wave. ii).A longitudinal wave.(1mark)
  1m 49s

• 15.    Figure 10 represents a transverse wave of frequency 5 Hz traveling in the x direction. Determine the speed of the wave.
  1m 9s

• 16.    Figure 5 shows the displacement time graph of a wave travelling at 200cm/s. Determine for the wave, the i).Amplitude (1mark). ii).Period (1mark). iii).Frequency (3marks) iv).Wavelength (2 marks).
  3m 13s

• 17.    The audible frequency range for a certain person is 30Hz and 16,500Hz. Determine the largest wavelength of sound in the air the person can detect. (Speed of sound in air =330m/s)
  1m 31s

• 18.    Give one example of a longitudinal wave.
  0m 55s

• 19.    i).What is the difference between longitudinal and transverse waves?.(1mark). ii).State two distinctions between the way sound waves and electromagnetic waves are transmitted.(2marks).
  5m 40s

• 20.    Calculate the wavelength of the KBC FM radio wave transmitted at a frequency of 95.6 Mega Hertz.
  2m 4s