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JAMB UTME Physics 2004 past questions and answers

This 2004 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 2004 set with instant marking.

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Sample JAMB UTME Physics 2004 questions

1. A metre rule of negligible weight is pivoted at the 40 cm mark. A 2 N weight hangs at the 20 cm mark, and a light force is applied downward at the 90 cm mark to balance the rule. What is the force?
  1. 0.4 N
  2. 0.8 N
  3. 1.2 N
  4. 2.0 N

Answer: B. 0.8 N

Taking moments about the pivot gives 2 x 0.20 = F x 0.50, so F = 0.8 N.

2. Why is a tall load more likely to topple than an otherwise similar low load on the same base?
  1. Its mass is necessarily smaller
  2. Its weight acts vertically upward
  3. Its friction with the ground is always zero
  4. A smaller tilt can move its centre of gravity beyond the base

Answer: D. A smaller tilt can move its centre of gravity beyond the base

A high centre of gravity reaches the edge of the supporting base after a smaller tilt, so the load topples more readily.

3. A single movable pulley supports a 300 N load by two sections of the same rope. If friction is negligible, what effort is required?
  1. 150 N
  2. 300 N
  3. 600 N
  4. 75 N

Answer: A. 150 N

The two supporting rope sections share the load equally, so the effort is 300/2 = 150 N.

4. A spring of force constant 200 N/m is extended by 0.10 m. How much elastic potential energy is stored?
  1. 2 J
  2. 10 J
  3. 1 J
  4. 20 J

Answer: C. 1 J

The stored energy is 0.5kx^2 = 0.5 x 200 x 0.10^2 = 1 J.

5. What is the gauge pressure at a depth of 3.0 m in water of density 1000 kg/m^3? Take g = 10 m/s^2.
  1. 3.0 x 10^3 Pa
  2. 1.0 x 10^4 Pa
  3. 2.0 x 10^4 Pa
  4. 3.0 x 10^4 Pa

Answer: D. 3.0 x 10^4 Pa

Gauge pressure is rho gh = 1000 x 10 x 3.0 = 3.0 x 10^4 Pa.

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