UI Physics Post UTME Online Practice Test

Welcome to UI Physics Post UTME Online Practice Test.

Are you preparing for the University of Ibadan (UI) Post-UTME screening examination? Test your knowledge with these Physics practice questions for UI Post UTME, designed to help you improve your speed, accuracy, problem-solving skills, and overall examination readiness.

Start your Physics practice today and prepare yourself for success in the UI Post-UTME screening examination!

A ball is thrown up into the air. At the highest point of its trajectory the ball:

(A) has zero acceleration

(B) is accelerating downwards

(D) is accelerating upwards

A ball of mass 200 g moving with a velocity of 8 m/s collides and sticks with another ball of mass 300 g moving in the same direction with velocity 4 m/s. What is the common velocity of the balls after the collision?

(A) 5.6 ms⁻¹

(B) 11.2 ms⁻¹

(D) 2.8 ms⁻¹

A boy holds the end of a rubber cord from which hangs a solid metal ball, if the boy whirls the ball in a horizontal circle, keeping his hand still. If the rubber cord breaks when the ball is at a point on the circle, in what direction will the ball move?

(A) towards the hand of the boy

(B) None of the above

(D) in the direction of the tangent to the circle at the point of break

A force of 20 N applied parallel to the surface of horizontal table is just sufficient to make a block of mass 4 kg set for motion. Find the acceleration when the force is doubled.

(A) 2 ms⁻¹

(B) 5 ms⁻¹

(D) 4 ms⁻¹

A motor car moves with a velocity of 20 ms on a rough horizontal road and covers a displacement of 50 m. Find the coefficient of dynamic friction between the type and the ground (g = 10 ms⁻²)

(A) 0.6

(B) 0.5

(D) 0.3

A physics student standing on the edge of a cliff throws a stone vertically downward with an initial speed of 10.0 m/s. The instant before the stone hits the ground below, it is traveling at a speed of 30.0 m/s. If the physics student were to throw the rock horizontally outward from the cliff instead, with the same initial speed of 10.0 m/s, what is the magnitude of the velocity of the stone just before it hits the ground?

(A) 10.0 m/s

(B) 20.0 m/s

(D) 40.0 m/s

A quantity is defined as the product of cross-sectional area and change in momentum per unit length. Which of the following is its SI unit?

(A) Nm

(B) kgm s²⁻¹

(D) kgs⁻¹

A rectangular concrete block 40 cm * 30 cm * 60 cm of mass 10 kg rests on a horizontal flat surface. What is the minimum pressure it can possibly exert on the surface?

(A) 408.3 Nm⁻²

(B) 608.4 Nm

(D) 816. 6 Nm⁻²

A simple hydrometer consists of uniform cylinder suitably weighted to float upright in most common liquids. It is graduated to read the relative density of a liquid directly. Which of the following is NOT correct?

(A) The product of the volume and density of liquid displaced is equal to its mass

(B) When placed in a liquid, it displaces exactly its own weight of the liquid

(D) When placed in a liquid, it displaces exactly its own volume of the liquid

10.

A stone which is dropped into a dry well hits the bottom in 2.2 s. How deep is the well? (Take g = 10m/s)

(A) 2.4 m

(B) 40.4 m

(D) 24.2 m

1 out of 6

11.

A woman whose mass is 70 kg sits 2.4 m from the fulcrum of a seesaw. At what distance from the fulcrum should a 60 kg man sit to balance the seesaw?

(A) 2.8 m

(B) 2.4 m

(D) 3.8 m

12.

An air bubble trapped at a depth in a liquid rises to the surface. Which of the following is true about its mass and density as it rises?

(A) Its mass is constant while its density decreases

(B) Its mass and density increase

(D) Its mass is constant while its density increases

13.

Complete the following sentence: The operation of a hydraulic jack is an application of

(A) Irrotational flow

(B) Bernoulli's principle

(D) Pascal's principle

14.

Complete the following statement: Today, the standard meter is defined in terms of

(A) the wavelength of light emitted from a sodium atom

(B) the wavelength of light emitted from a krypton atom

(D) the speed of light

15.

Convert 30 metre per second to centimeter per minute

(A) 20,000 cm/min

(B) 150,000 cm/min

(D) 180,000 cm/min

16.

During a football match, player A kicks the ball 40 m, 30 E of S to player B who instantly kicks it 30 m, 60 E of N. What is the magnitude of the resultant displacement of the ball?

(A) 50 m

(B) 60 m

(D) 40 m

17.

How much work is done against gravity in sliding a 500g object through 2 m up a smooth plane that is inclined at 30° to the horizontal? (g = 9.8 ms⁻²)

(A) 4.9 J

(B) 9.8 J

(D) 16.2 J

18.

In free fall, two balls of masses 20 kg and 10 kg were dropped from a height. If the ball with the smaller mass reached the ground after 4 s, what is the difference between the time the two balls reach the ground?

(A) 2 s

(B) 0 s

(D) 4 s

19.

In what distance can a 1,500 kg automobile be stopped if the brake is applied when the speed is 20 m/s and the coefficient of sliding friction is 0.7 between the tyres and the ground?

(A) 71.67 m

(B) 20.10 m

(D) 29.15 m

20.

The highest point of a simple pendulum bob is 5cm vertically above the lowest point as it swings to and fro between the two extreme ends. At what velocity does it swing past the lowest point (equilibrium point) where the string is vertical? (Take g = 10 m/s²)

(A) 5 m/s

(B) 10 m/s

(D) 1 m/s

2 out of 6

21.

Three vectors A, B, and C add together to yield zero: A + B + C = 0. The vectors A and C point in opposite directions and their magnitudes are related by the expression: A = 2C. Which one of the following conclusions is correct?

(A) A and B point in the same direction, but A has twice the magnitude of B.

(B) B and C have equal magnitudes and point in opposite directions

(D) B and C have equal magnitudes and point in the same direction

22.

A uniform wave has a speed of 10m/s and a period of 0.5 s. The distance between two nearest crests is

(A) 20 m

(B) 2 m

(D) 5 m

23.

Which of the following could be measured in the same units as force?

(A) Momentum /distance

(B) Energy / distance

(D) Energy/distance

24.

Which of the following does not affect the pressure at a point beneath the surface of a liquid?

(A) Depth of the point below the surface

(B) Strength of the gravitational field

(D) Surface area of the liquid

25.

Which of the following pairs contains one vector and one scalar quantity?

(A) Momentum : velocity

(B) Power : speed

(D) Force : kinetic energy

26.

Which of the following statements is correct

(A) constant momentum implies constant acceleration

(B) uniform speed may imply nonzero acceleration

(D) uniform speed always implies zero acceleration

27.

Which of the following is a measurement taken with Vernier callipers?

(A) 2.0 cm

(B) 2.00 cm

(D) 2.0000 cm

28.

Which of the units of the following physical quantities are derived?

I. Area
II. Thrust
III. Pressure
IV. Mass.

(A) I, II, III and IV

(B) I, II and III only

(D) I, II and IV only

29.

Which one of the following situations is not possible?

(A) A body travels with a northward velocity and a northward acceleration.

(B) A body has zero velocity and non-zero acceleration.

(D) A body travels with a constant velocity and a time-varying acceleration.

30.

If C is the thermal capacity of a material of mass m and S is its specific heat capacity, then

(A) S = Cm

(B) C = S/m

(D) S = m/C

3 out of 6

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UI Physics Post UTME Online Practice Test

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