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प्रश्न
Fill in the blank.
Friction depends upon the ............... of an object.
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उत्तर
Friction depends upon the weight of an object.
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संबंधित प्रश्न
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.
Answer the following in a word or two or in a sentence.
Why does a rolling ball stop after moving some distance?
Fill in the blank.
Sliding friction and rolling friction are types of .................. friction.
Tick the most appropriate answer.
Friction is offered by
Answer the following in detail.
Write the characteristics of the force of friction?
Complete the analogy.
Knot in a thread : _____ friction : : Ball bearing : _____ friction
How do you feel when you touch a nail immediately after it is hammered into a wooden plank? Why?
Why is a ball bearing used in a cycle hub?
Explain how friction can be minimized.
Is there any possibility of making a special device to measure the magnitude of friction directly?
