Try 10 free Physics questions below, each with the answer explained. When you are ready, practise all 2,060 on a timed CBT screen.
The UTME is JAMB's computer-based entrance exam for Nigerian universities, polytechnics and colleges of education. You sit Use of English and three other subjects in 2 hours: 60 questions for Use of English and 40 for each other subject.
Tap an answer to check it and see the explanation.
Which of these is NOT a scalar quantity: mass, power, velocity or work?
Answer: D. velocity has both magnitude and direction, so it is a vector.
A cyclist travels 270 m in 18 s. Find the average speed.
Answer: C. Speed = distance ÷ time = 270 ÷ 18 = 15 m/s.
A machine uses 550 J of energy and does 330 J of useful work. Find its efficiency.
Answer: D. Efficiency = output ÷ input × 100 = 330 ÷ 550 × 100 = 60%.
A spring of force constant 10 N/m is stretched by 15 cm. Find the force applied.
Answer: B. F = ke = 10 × 0.15 = 1.5 N (convert cm to m first).
A force of 27 N acts 100 cm from the pivot of a balanced lever. What force acting 90 cm on the other side balances it?
Answer: B. Principle of moments: 27 × 100 = F × 90, so F = 30 N.
A coin at the bottom of a tank of liquid 16 cm deep appears to be 12 cm below the surface. Find the refractive index of the liquid.
Answer: D. n = real depth ÷ apparent depth = 16 ÷ 12 = 1.33.
What does a galvanometer measure?
Answer: A. A galvanometer measures very small electric currents.
One common use of ultraviolet radiation is
Answer: B. Detecting forged bank notes uses ultraviolet radiation.
The acceleration due to gravity near the Earth's surface is about
Answer: B. g is approximately 9.8 m/s² (often rounded to 10 m/s²).
Heat from the Sun reaches the Earth mainly by
Answer: C. Space is a vacuum, and only radiation can travel through a vacuum.
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Create a free accountQuestions in the MyGradePrep bank for each topic.
| Topic | Questions |
|---|---|
| Motion | 346 |
| Work, energy and power | 300 |
| Electricity | 254 |
| Waves | 142 |
| Scalars and vectors | 121 |
| Force | 120 |
| Moments | 120 |
| Current electricity | 120 |
| Elasticity | 100 |
| Pressure | 89 |
| Heat | 61 |
| Density | 60 |
| Momentum | 60 |
| Machines | 60 |
| Light | 40 |
| Units | 33 |
| Measurement | 25 |
| Vectors | 7 |