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JAMB UTME Physics 2006 past questions and answers

This 2006 JAMB UTME Physics set has 40 practice questions. Try these 5 free sample questions, tap a question to reveal the answer and explanation. Then practise the whole 2006 set with instant marking.

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Sample JAMB UTME Physics 2006 questions

1. A metal rod 2.0 m long has a linear expansivity of 1.2 x 10^-5 K^-1. How much does its length increase when its temperature rises by 50 K?
  1. 0.00012 m
  2. 0.0012 m
  3. 0.012 m
  4. 0.12 m

Answer: B. 0.0012 m

The increase is alpha L deltaT = 1.2 x 10^-5 x 2.0 x 50 = 0.0012 m.

2. How much heat is required to vaporize 0.25 kg of water at its boiling point if the specific latent heat of vaporization is 2.26 x 10^6 J/kg?
  1. 565 J
  2. 56,500 J
  3. 2,260,000 J
  4. 565,000 J

Answer: D. 565,000 J

Using Q = mL gives Q = 0.25 x 2.26 x 10^6 = 565,000 J.

3. A fixed mass of gas is kept at constant volume. If its pressure is 100 kPa at 300 K, what is its pressure at 450 K?
  1. 150 kPa
  2. 225 kPa
  3. 300 kPa
  4. 50 kPa

Answer: A. 150 kPa

At constant volume pressure is proportional to absolute temperature, so P2 = 100 x 450/300 = 150 kPa.

4. A wave has a frequency of 250 Hz and a wavelength of 1.2 m. What is its speed?
  1. 208 m/s
  2. 250 m/s
  3. 300 m/s
  4. 360 m/s

Answer: C. 300 m/s

Wave speed v = f lambda = 250 x 1.2 = 300 m/s.

5. A sound pulse returns as an echo 1.5 s after it is sent towards a cliff. If the speed of sound is 340 m/s, how far away is the cliff?
  1. 170 m
  2. 255 m
  3. 340 m
  4. 510 m

Answer: B. 255 m

The pulse travels to the cliff and back, so the distance is 340 x 1.5/2 = 255 m.

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