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प्रश्न
Answer the following.
What do you understand by a force?
उत्तर
Force is a push or pulls acting upon an object as a result of its interaction with another object.
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संबंधित प्रश्न
Give examples to show that friction is both a friend and a foe.
Write true or false.
Liquids offer more friction than the gases.
Select the correct alternative.
Friction is reduced by
State two factors which directly affect the force of friction.
Define static friction
Arrange the following in descending order:
- static friction
- sliding friction and
- rolling friction?
A body needs a force F1 just to start moving on a surface, a force F2 to continue its motion and a force F3 to roll on the surface. What is
- the static friction
- sliding friction and
- rolling friction? State whether F2 is equal, less than or greater than (1) F1 and (2) F3.
Fill in the blank.
.................... is the SI unit of force.
Tick the most appropriate answer.
Friction is offered by
Fill in the blank.
Friction depends upon the ............... of an object.
