LAKHMIR SINGH & MANJIT KAUR-FRICTION-EXERCISE
- What is the direction of force of friction acting on a moving object ?
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- Name a device which is used to measure force acting on an object.
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- What is the spring balance ?
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- Out of sliding friction, static friction and rolling friction : Whic...
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- Out of sliding friction, static friction and rooling friction : whic...
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- Which type of friction comes into play when a book kept on cylindrical...
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- Why is it more difficult to walk properly on a well-polished floor ?
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- Prove that the curves y(1) = f (x) (f(x) gt 0) and y(2) = f(x) sin x, ...
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- Which force is responsible for the wearing out of car tyres ?
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- What prevents you from slipping every time you take a step forward ?
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- Name the force which helps things to move and stop.
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- What enables us to fix nails in a wall and knots to be tied ?
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- What makes the steps of foot over-bridges and Railways Station to wear...
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- What is done to increase friction between the tyres and road ?
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- Why do gymnasts apply a coarse substance to their hands ?
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- Why do kabaddi players rub their hands with dry soil ?
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- Name the device which is used between the hubs and axles of bicycle wh...
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- What is the purpose of using ball bearings in machines ?
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- Name any two machines in which bearings are used.
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- The ovule is attached to the placenta by a stalk called ………… .
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