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प्रश्न
Fill in the blank.
.................... is the SI unit of force.
उत्तर
Newton is the SI unit of force.
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संबंधित प्रश्न
Suppose your writing desk is tilted a little. A book kept on it starts sliding down. Show the direction of frictional force acting on it.
List three ways of reducing friction.
Give three examples to illustrate that friction is a necessary evil.
Fill in the blank.
Rolling friction is ........... than sliding friction.
Fill in the blank.
Bicycles use ...................... to reduce friction between the pedals and the crank
State if the following statement is true or false. Correct the statement if it is false.
Friction helps us to grip the objects in our hand.
Answer the following in short.
Define rolling friction and give an example where rolling. friction comes into play.
Answer the following in short.
How can sliding friction be changed into rolling friction easily?
Whenever the surfaces in contact tend to move or move with respect to each other, the force of friction comes into play
Complete the analogy.
Knot in a thread : ______ friction :: Ball bearing : ______ friction.
