Exam Body

Year

Subject

Paper Type

UTME 2018 Physics | Objective

Are you preparing for UTME exams? Reviewing past questions is one of the most effective ways to guarantee a high score. This practice hub features authentic 2018 Physics (Objective) questions designed to simulate the real exam environment.

Practice these randomly selected questions to test your readiness.

Question 1

A man walks 1 km due east and then 1 km due north. His displacement is

Correct A. \( \sqrt{2} \mathrm{kmN} 45^{\circ} \mathrm{E} \)

B. \( 1 km N 30^{\circ} E \)

C. \( 1 km N 15^{\circ} E \)

D. \( \sqrt{2} \mathrm{~km} \mathrm{~N} 60^{\circ} E \)

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 2

The density of 400 cm³ of palm oil was 0.9 g cm⁻³ before frying. If the density of the oil was 0.6 g cm⁻³ after frying, assuming no loss of oil due to spilling, its new volume was

A. 360 cm³

Correct B. 600 cm³

C. 240 cm³

D. 800 cm³

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 3

Which of the following is true of an electrical charge?

A. Positive charge means deficit electrons

B. Negative charge means excess of electrons

C. Electric current means movement of electrons

Correct D. All of the above

Correct Answer: D

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 4

Natural radioactivity consists of the emission of

A. \( \alpha \) -particles and \( \beta \) -rays

B. \( \alpha \) -particles and \( X-rays \)

Correct C. \( \alpha \) -particles,\( \beta \) -rays and \( \gamma \)-rays

D. \( \gamma \) -rays and \( X \)-rays

Correct Answer: C

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 5

Which of the following does NOT describe the image formed by a plane mirror?

A. Erect

B. Laterally inverted

C. Same distance from mirror as object

Correct D. Magnified

Correct Answer: D

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 6

What is the resultant resistance of the circuit given above?

Correct A. 8 \( \Omega \)

B. 11 \( \Omega \)

C. 4 \( \Omega \)

D. 3.6 \( \Omega \)

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 7

Which of the following best describes the energy changes which take place when a steam engine drives a generator which lights a lamp?

A. Heat → Light → Sound → Kinetic

B. Kinetic → Light → Heat → Electricity

Correct C. Heat → Kinetic → Electricity → Heat and Light

D. Electricity → Kinetic → Heat → Light

Correct Answer: C

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 8

Cathode rays are

A. High-energy electromagnetic waves

B. protons

C. neutrons

Correct D. streams of electrons

Correct Answer: D

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 9

A narrow beam of white light can be split up into different colours by a glass prism. The correct explanation is that

A. white light is an electromagnetic wave

B. the prism has all the colours of the white light

Correct C. different colours of white light travel with different speeds in glass

D. white light has undergone total internal reflection in the prism

Correct Answer: C

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 10

The figure above represents a block-and-tackle pulley system on which an effort of W Newtons supports a load of 120.0 N. If the efficiency of the machine is 40%, then the value of W is

A. 28.0 N

Correct B. 48.0 N

C. 288.0 N

D. 50.0 N

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 11

What type of reaction is represented by the following scheme? \[_{1}^{2}X + _{1}^{2}Y \rightarrow _{2}^{3}Z + _{0}^{1}n + \text{ energy}\]

Correct A. Fusion reaction

B. Fission reaction

C. Chain reaction

D. Radioactive decay.

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 12

The amount of heat needed to raise the temperature of 10 kg of copper by 1 K is its

A. specific heat capacity

B. latent heat

Correct C. heat capacity

D. internal energy

Correct Answer: C

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 13

The electrochemical equivalent of silver is 0.0012 g/C. If 36.0 g of silver is to be deposited by electrolysis on a surface by passing a steady current for 5.0 minutes, the current must be

A. 6000 A

Correct B. 100 A

C. 10 A

D. 1 A

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 14

Shadows and eclipses result from the

A. refraction of light

B. reflection of light

C. defraction of light

Correct D. rectilinear propagation of light

Correct Answer: D

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 15

Which of the following obeys Ohm's Law?

Correct A. All metals

B. Diode only

C. All electrolytes

D. Glass

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 16

Which of the following statements are TRUE of isotopes? \( I.\) Isotopes of an element have the same chemical properties because they have the same number of electrons \( II.\) Isotopes of elements are normally separated using physical properties \( III. \) Isotopes of an element have the same number of protons in their nuclei.

A. I and II only

B. I and III only

C. II and III only

Correct D. I, II and III.

Correct Answer: D

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 17

In the diagram above, the hanging mass m₂ is adjusted until m is on the verge of sliding. The coefficient of static friction between the mass m and the table is

A. \( \frac{m_{1}}{m_{2}} \)

B. \( \frac{m_{1} g}{m_{2}} \)

Correct C. \( \frac{m_{2}}{m_{1}} \)

D. \( \frac{m_{2} g}{m_{1}} \)

Correct Answer: C

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 18

Which of the following may be used to explain a mirage? \( I. \) Layers of air near the road surface have varying refractive indices in hot weather \( II. \) Road surfaces sometimes become good reflectors in hot weather. \( III.\) Light from the sky can be reflected upwards after coming close to the road surface.

Correct A. I and III only

B. II and III only

C. II only

D. I, II and III

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 19

In the diagram above, if the atmospheric pressure is 760 mm, the pressure in the chamber G is

A. 660 mm

B. 830 mm

Correct C. 690 mm

D. 860 mm

Correct Answer: C

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 20

Which of the following has the lowest internal resistance when new?

A. Leclanche cell

B. Daniel cell

C. Torch battery

Correct D. Accumulator

Correct Answer: D

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 21

The pitch of an acoustic device can be increased by

A. decreasing the loudness

B. increasing the amplitude

Correct C. increasing the frequency

D. decreasing the intensity.

Correct Answer: C

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 22

One of the features of the fission process is that

Correct A. it leads to chain reaction

B. its products are not radioactive

C. neutrons are not released

D. the sum of the masses of the reactants equals the sum of the masses of the products.

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 23

The linear expansivity of brass is 2 \( \times 10^{-5} \mathrm{C}^{-1} \). If the volume of a piece of brass is 15.00 \( \mathrm{~cm}^{3} \) at \( 0^{\circ} \mathrm{C} \), what is the volume at \( 100^{\circ} \mathrm{C} \)?

A. \( 16.03 \mathrm{~cm}^{3} \)

Correct B. \( 15.09 \mathrm{~cm}^{3} \)

C. \( 16.00 \mathrm{~cm}^{3} \)

D. \( 15.03 \mathrm{~cm}^{3} \)

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 24

A lead bullet of mass 0.05 kg is fired with a velocity of \( 200 \mathrm{~ms}^{-1} \) into a lead block of mass 0.95 kg. Given that the lead block can move freely, the final kinetic energy after impact is:

Correct A. 150 J

B. 100 J

C. \( \frac{50}{J^{-131}} \)

D. 200 J

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 25

In a series R-I-C circuit at resonance, the voltages across the resistor and the inductor are 30 V and 40 V respectively. What is the voltage across the capacitor?

A. 30 V

B. 70 V

C. 50 V

Correct D. 40 V

Correct Answer: D

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Master the Exam!

You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.

Unlock Full Access Available for Android & Windows

Help others prepare! Share this practice hub:

Chat with Support