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PEARSON IIT JEE FOUNDATION-DYNAMICS-Very Short Answer Type Questions
- A constant force of 2 N acts on a body for 5 seconds to change its vel...
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- Define 1 J of work.
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- What is energy?
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- 1 newton = dynes.
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- What is a rigid body?
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- Define centre of gravity.
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- Explain how the centre of gravity of an irregular lamina is determined...
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- A bottle standing on its base is more stable than when it stands on it...
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- State the different types of equilibrium.
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- Friction in moving parts of a machine can be reduced by using .
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- Give three examples of bodies in unstable equilibrium.
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- Why do we use simple machines?
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- Bottle lid opener is an example of lever
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- (i) What is mechanical advantage? (ii) Define efficiency of a mach...
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- One S.I. units of force is times one unit of force in CGS system.
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- Define a lever.
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- See-saw is an example of order lever.
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- If load is between the fulcrum and effort of a lever, it is called or...
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- The mechanical advantage of a broomstick is .
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- What is the use of a pulley?
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