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Form 2 Physics Cat 2 Term 3 Question Paper

Form 2 Physics Cat 2 Term 3 

Course:Physics

Institution: Form 2 question papers

Exam Year:2013



PHYSICS
TERM III 2013
TIME: 1 HOUR
ATTEMPT ALL QUESTIONS

1. Distinguish between transverse and longitudinal waves giving examples in each. (2 marks)

2. The wavelength of a local fm radio station is rated 120 MHZ . Determine its wavelength if the speed of light is given as 3 X 108 m/s
(4 marks)

3. The figure below shows a waveform of a wave made in 5 seconds.

displacement30112016.jpg

Determine:
a) the amplitude of the wave. (2 marks)

b) The wavelength of the wave. (2 marks)

c) The speed of the wave. (2 marks)

d) The periodic time of the wave. (2 marks)


4. State five sources of sound. (5 marks)

5. State 3 factors affecting velocity of sound in air. (3 marks)

6. An echo sounder in a ship produces a sound pulse and an echo is received from the sea bed after 0.2 sec. if the velocity of sound in water is 1400m/s. calculate the depth of the sea.
(4 marks)

7. A disc siren has air blown into its hole as it is rotated at 10 revolutions per second so that it produces sound of frequency 5 KHZ. Find the number of holes on it.
(4 marks)




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