POST UTME IMS U 2017 Physics | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A particle of mass 2 kg is moving in a circular path of radius 3 m with a cons\tant speed of 4 m/s. If the particle is subjected to a centripetal force of 10 N, what is the magnitude of the acceleration of the particle?
A. 2 m/s^2
B. 4 m/s^2
C. 6 m/s^2
D. 8 m/s^2
Question 2
A projectile is launched from the ground with an initial velocity of 20 m/s at an angle of 60° above the horizontal. What is the maximum height reached by the projectile?
A. 10 m
B. 15 m
C. 20 m
D. 25 m
Question 3
A wave is traveling through a medium with a frequency of 50 Hz. If the wavelength of the wave is 2 meters, what is the speed of the wave?
A. 10 m/s
B. 20 m/s
C. 50 m/s
D. 100 m/s
Question 4
A parallel plate capacitor has a capaci\tance of 10 μF and is charged to a potential difference of 20 V. If the dis\tance between the plates is doubled, what is the new potential difference?
A. 10 V
B. 20 V
C. 40 V
D. 80 V
Question 5
A gas at a pressure of 2 atm and a temperature of 300 K is allowed to expand to a pressure of 1 atm. What is the final temperature of the gas?
A. 200 K
B. 250 K
C. 300 K
D. 350 K
Question 6
A \sinusoidal voltage source has a peak voltage of 20 V and a frequency of 50 Hz. If the current flowing through a 10 Ω resistor is 2 A, what is the power factor of the circuit?
A. 0.5
B. 0.7
C. 0.9
D. 1.0
Question 7
A 2 kg block of metal is heated from 20°C to 80°C. If the specific heat capacity of the metal is 400 J/kg°C, calculate the amount of heat energy transferred to the block.
A. 16000 J
B. 32000 J
C. 48000 J
D. 64000 J
Question 8
A heat engine operates between a temperature of 500 K and a temperature of 300 K. Assuming the engine is 80% efficient, calculate the work done by the engine per cycle.
A. 100 J
B. 200 J
C. 300 J
D. 400 J
Question 9
A circuit consists of a 10 Ω resistor, a 20 Ω resistor, and a 5 Ω resistor connected in series. A 12 V power source is connected across the circuit. Calculate the current drawn by the circuit.
A. 0.4 A
B. 0.5 A
C. 0.6 A
D. 0.7 A
Question 10
A wave has a frequency of 50 Hz and a wavelength of 2 m. What is the speed of the wave?
A. 100 m/s
B. 200 m/s
C. 250 m/s
D. 300 m/s
Question 11
A wave has a frequency of 50 Hz and a wavelength of 0.1 m. Calculate the speed of the wave.
A. 5 m/s
B. 10 m/s
C. 15 m/s
D. 20 m/s
Question 12
A heat engine operates between two reservoirs at temperatures of 500 K and 300 K. If the engine absorbs 100 J of heat from the high-temperature reservoir, what is the efficiency of the engine?
A. 0.2
B. 0.3
C. 0.4
D. 0.5
Question 13
A parallel plate capacitor has a capaci\tance of 2 μF and is charged to a potential difference of 10 V. If a dielectric slab of thickness 2 mm and dielectric cons\tant 3 is inserted between the plates, what is the new capaci\tance?
A. 4 μF
B. 6 μF
C. 8 μF
D. 10 μF
Question 14
A projectile is launched from the ground with an initial velocity of 20 m/s at an angle of 60° above the horizontal. What is the maximum height reached by the projectile?
A. 10 m
B. 15 m
C. 20 m
D. 25 m
Question 15
A 10 kg block is attached to a horizontal, massless spring with a force cons\tant of 100 N/m. If the block is displaced by 0.2 m from its equilibrium position and released from rest, calculate the maximum speed of the block.
A. 0.5 m/s
B. 1 m/s
C. 1.5 m/s
D. 2 m/s

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