POST UTME FUTO 2021 Physics | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A force of 10 N is applied to an object of mass 2 kg, cau\sing it to accelerate at 5 m/s^2. What is the force applied to the object in the opposite direction?
A. 5 N
B. 10 N
C. 15 N
D. 20 N
Question 2
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. What is the magnitude of the centripetal acceleration?
A. 0.5 m/s^2
B. 1 m/s^2
C. 2 m/s^2
D. 4 m/s^2
Question 3
A radioactive sample has an initial activity of 100 Bq. If the half-life of the sample is 10 minutes, what is the activity of the sample after 20 minutes?
A. 50 Bq
B. 25 Bq
C. 12.5 Bq
D. 6.25 Bq
Question 4
A simple harmonic motion has a period of 2 s and an amplitude of 3 m. What is the angular frequency?
A. 1.5 rad/s
B. 3.0 rad/s
C. 4.5 rad/s
D. 6.0 rad/s
Question 5
A beam of light passes from air into a glass of re\fractive index 1.5. If the angle of incidence is 30°, what is the angle of re\fraction?
A. 20°
B. 25°
C. 30°
D. 35°
Question 6
A coil of wire has a resis\tance of 5 Ω and an induc\tance of 0.1 H. If a current of 2 A is flowing through the coil, what is the energy stored in the magnetic field?
A. 0.1 J
B. 0.2 J
C. 0.3 J
D. 0.4 J
Question 7
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. What is the magnitude of the centripetal acceleration?
A. 2 m/s^2
B. 4 m/s^2
C. 6 m/s^2
D. 8 m/s^2
Question 8
A circuit consists of a 10 Ω resistor in series with a 20 Ω resistor. If a current of 2 A flows through the circuit, calculate the potential difference across the 10 Ω resistor.
A. 10 V
B. 20 V
C. 30 V
D. 40 V
Question 9
A parallel plate capacitor has a capaci\tance of 10 μF and is charged to a potential difference of 12 V. If the plates are then separated by a dis\tance of 2 cm, what is the new capaci\tance?
A. 5 μF
B. 10 μF
C. 20 μF
D. 50 μF
Question 10
A spring with a spring cons\tant of 100 N/m is stretched by 0.2 m. What is the potential energy stored in the spring?
A. 2 J
B. 4 J
C. 6 J
D. 8 J
Question 11
A particle of mass 2 kg is moving in a circular path of radius 4 m with a cons\tant speed of 6 m/s. If the particle is subject to a centripetal acceleration of 2 m/s^2, what is the magnitude of the force acting on the particle?
A. 12 N
B. 24 N
C. 36 N
D. 48 N
Question 12
A capacitor consists of two parallel plates, each of area 0.04 m^2, separated by a dis\tance of 0.02 m. If the capaci\tance is 8 nF, what is the charge stored on each plate when a potential difference of 10 V is applied?
A. 80 μC
B. 160 μC
C. 240 μC
D. 320 μC
Question 13
A sound wave has a frequency of 200 Hz and a speed of 340 m/s. What is the wavelength of the wave?
A. 1.7 m
B. 1.5 m
C. 1.2 m
D. 1.0 m
Question 14
A gas is enclosed in a vessel at a pressure of 1.5 atm. If the temperature is increased by 20°C, what is the new pressure of the gas, assuming the volume remains cons\tant?
A. 1.8 atm
B. 2.1 atm
C. 2.5 atm
D. 3.0 atm
Question 15
A 1000 Hz AC voltage source is connected to a 50 Ω resistor. If the maximum voltage is 100 V, what is the average power dissipated in the resistor?
A. 50 W
B. 100 W
C. 200 W
D. 500 W

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