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प्रश्न
Answer the following in short.
Define force. Write its SI unit.
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उत्तर
A push or pull acting upon an object as a result of its interaction with another object is called force. Its SI unit is the newton (N).
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संबंधित प्रश्न
Friction depends on the ______ of surfaces.
Give examples to show that friction is both a friend and a foe.
Write true or false.
Liquids offer more friction than the gases.
Name the two kinds of forces in nature.
State two factors which directly affect the force of friction.
State if the following statement is true or false. Correct the statement if it is false.
Like charges always attract each other.
State if the following statement is true or false. Correct the statement if it is false.
Friction has no relation with our walking or running.
State if the following statement is true or false. Correct the statement if it is false.
Friction is offered by all the three states of matter.
Complete the analogy.
Knot in a thread : _____ friction : : Ball bearing : _____ friction
Analogy
Objects placed at rest on earth: ______:: Bodies slide over the surface on other body: ______.
