University Of Ibadan Post Utme 2017/2018 will be communicated to you soon. Be calm

Identify the Wrong Answers in the below Questions






13. 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 and density increase (B) Its mass is constant
while its density decreases (C) Its mass and density is constant. (D) Its mass is constant while
its density increases.

Answer: B

14. Complete the following sentence: The operation of a hydraulic jack is an application of (A)
Pascal's principle. B. Archimedes’ principle. (C) Bernoulli's principle. (D) irrotational flow.

Answer: A

15. Complete the following statement: Today, the standard meter is defined in terms of (A) the
distance from the earth’s equator to the north pole. (B) the wavelength of light emitted from a
krypton atom. (C) the wavelength of light emitted from a sodium atom. (D) the speed of light.

Answer: D

16. Convert 30 metre per second to centimeter per minute (A) 20,000 cm/min (B) 180,000
cm/min (C) 120,000 cm/min (D) 150,000 cm/min

Answer: C

17. During a football match, player A kicks the ball 40 m, 30o E of S to player B who instantly kicks it
30 m, 60o E of N. What is the magnitude of the resultant displacement of the ball? (A) 30 m (B)
40 m (C) 50 m (D) 60 m

Answer: B

18. How much work is done against gravity in sliding a 500g object through 2 m up a smooth plane
that is inclined at 30o to the horizontal? (g = 9.8 ms-2) (A) 9.8 J (B) 19.8 J (C) 16.2 J (D) 4.9 J

Answer: D

19. If a small body of mass m is moving with angular velocity ω in a circle of radius r, what is its
kinetic energy? (A) mω r (B) m ω 2r/2 (C) m ω r2/2 (D) m ω 2r2/2

Answer: B

20. 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) 8 s (B) 2 s (C) 0 s (D) 4 s

Answer: B

21. 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) 98.10 m (B) 71.67 m (C) 29.15 m (D) 20.10 m

Answer: C
UNIVERSITY OF IBADAN, IBADAN 2017/18 POST UTME

You can now Check your Exam Date and Venue

@
http://admissions.ui.edu.ng