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 GCE is the version of the school-leaving exam for private candidates, usually held towards the end of the year. It follows the same syllabus as the May/June exam, with objective and theory papers.
Tap an answer to check it and see the explanation.
Which of these is NOT a vector quantity: acceleration, electric field intensity, energy or weight?
Answer: B. energy has magnitude only, so it is a scalar.
A cyclist travels 247 m in 19 s. Find the average speed.
Answer: C. Speed = distance ÷ time = 247 ÷ 19 = 13 m/s.
A machine uses 950 J of energy and does 760 J of useful work. Find its efficiency.
Answer: D. Efficiency = output ÷ input × 100 = 760 ÷ 950 × 100 = 80%.
A spring of force constant 150 N/m is stretched by 10 cm. Find the force applied.
Answer: C. F = ke = 150 × 0.1 = 15 N (convert cm to m first).
A force of 35 N acts 60 cm from the pivot of a balanced lever. What force acting 60 cm on the other side balances it?
Answer: B. Principle of moments: 35 × 60 = F × 60, so F = 35 N.
A coin at the bottom of a tank of liquid 12 cm deep appears to be 8 cm below the surface. Find the refractive index of the liquid.
Answer: B. n = real depth ÷ apparent depth = 12 ÷ 8 = 1.5.
Which instrument measures potential difference?
Answer: D. A voltmeter measures potential difference.
One common use of ultraviolet radiation is
Answer: A. Detecting forged bank notes uses ultraviolet radiation.
Heat from the Sun reaches the Earth mainly by
Answer: C. Space is a vacuum, and only radiation can travel through a vacuum.
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).
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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 |