Assignment- Conceptual questions Physics-11

Assignment-

Conceptual questions

Physics-11

Time: 1hour.                                                                                                       Marks: 15

All questions are compulsory.

 

Q1. If friction can provide necessary centripetal force, why should the road be

       banked?                                                                                                             [2]

Ans.

 

Q2. Is it possible to open a pen cap with one finger? Why?                               [2]

Ans.

 

  1. Why is it easier to balance a bicycle in motion rather than rest? [2]

Ans.

 

  1. What is the angular velocity of the hour hand of clock? [2]

Ans.         

 

 

 

Q5. If a string of a rotating stone breaks, in which direction will the stone

       move?                                                                                                                  [2]

Ans.       

                                 

Q6. Why the tyres are made of rubber?                                                                    [1]

Ans.

 

Q7. What is the principle behind the launch of rockets?                                        [2]

Ans.

 

Q8. Is angular displacement a vector? Why?                                                           [2]

Ans.          

 

 

 

 

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