Practice MCQs For Force and Turning Effect Of Forces



This quiz contains practice questions for GCE ‘O’ level topic: Forces and Turning effect of forces. There are explanations for some of the questions after you submit the quiz. If you could not figure out why a particular option is the answer, feel free to drop a comment below or ask a question in ‘O’ & ‘A’ Level Discussion section of the forum. If you wish to contribute questions to this quiz, please contact us.

The quiz comprises of 10 questions, which are randomly selected from a large pool of questions. After completion, you can refresh the page and try the quiz again for a new set of 10 questions.

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1. When a body moves across a rough surface, a frictional force is produced.

Which statement about this force is always true?
2. A car is travelling at constant speed along a road and discovers that a thin sheet of ice has formed on the road. Fearing for his safety, the driver applies the brakes to stop the car. Compared to braking on a dry road, what may happen?
3. A rod is balanced horizontally with several weights placed on it. How does its moment at the right end of the rod compare with its moment about its centre of gravity?
4. A driver's foot presses with a steady force of 20 N on a pedal in a car as shown in the figure below.

What is the force F pulling on the piston?

driver foot on pedal
5. When a resultant force of 6.0 N is applied to a mass of 3.0 kg, the acceleration of the mass will be ___________.
6. A force is applied to a body.

Which property of the body cannot be changed by the force?
7. Which is a statement of Newton's third law of motion?
8. An object is moving in a straight line on a smooth surface at 6 m/s when a constant force acts on it from the opposite direction. If the force is held constant for a long time, how long will the object move?
9. A body is moving in a straight line under the action of a constant force. What change will occur to the body?
10. An extension-load graph is plotted to show the result of increasing the load on a spring.

Which point marks the limit of proportionality for this spring?

limit of proportionality of spring

 

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