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प्रश्न
Name the two kinds of forces in nature.
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उत्तर
Two kinds of forces in nature are :
- Contact forces
- Non-contact forces
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संबंधित प्रश्न
Write true or false.
Liquids offer more friction than the gases.
State two factors which directly affect the force of friction.
Arrange the following in descending order:
- static friction
- sliding friction and
- rolling friction?
Answer the following.
What do you understand by a force?
Answer the following in a word or two or in a sentence.
Which type of force acts on a string pulled from both ends?
Fill in the blank.
Sliding friction and rolling friction are types of .................. friction.
Tick the most appropriate answer
Friction always
Fill in the blank.
Friction depends upon the ............... of an object.
Fill in the blank.
Bicycles use ...................... to reduce friction between the pedals and the crank
Whenever the surfaces in contact tend to move or move with respect to each other, the force of friction comes into play
