Please select a subject first
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What do you understand by thermal expansion of a substance?
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When is instantaneous speed the same as the average speed?
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What is Galileo's law of inertia?
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What is meant by the term inertia?
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Name the factor on which the inertia of a body depends and state how does it depend on the factor stated by you .
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Give two examples to show that greater the mass, greater is the inertia of the body.
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Name the two kinds of inertia.
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Give one example of each of the following :
(a) inertia of rest, and (b) inertia of motion .
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Why does a person fall when he jumps out from a moving train ?
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Why does a coin, placed on a card, drop into the tumbler when the card is rapidly flicked with a finger?
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Why does a ball thrown vertically upwards in a moving train , come back to the thrower's hand ?
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Explain the following :
When a train suddenly moves forward , the passenger standing in the compartment tends to fall backwards .
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Explain the following :
When a corridor train suddenly starts , the sliding doors of some compartments may open .
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Dust particles are removed from a carpet by beating it.
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Explain the following :
It is advantageous to run before taking a long jump .
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The property of inertia is more in :
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Name one D.C. source and one A.C. source.
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What transformation of energy takes place when current is drawn from a cell?
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Name the constituents of a cell.
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