General Physics Questions And Answers, Set 22

 

General Physics Questions And Answers

Q1. 

Which law of Newton helps in finding the force on a body?

Answer : 

Second Law

Q2. 

Which of the following is the correct formulation for the second law of motion?

Answer :  

F = v(dm/dt) + ma

Q3. 

When two same masses travelling in opposite directions with different velocities collide perfectly elastically, their velocities ______

Answer :  

Exchange

Q4. 

Which of the following statements are true?

Answer : 

Energy can neither be created nor destroyed

Q5. 

Fire is a form of _____

Answer :  

thermal energy

Q6. 

What is the increase in potential energy storage when the compression distance is doubled in a spring obeying Hooke’s law?

Answer :  

4 times

Q7. 

The potential energy of an object of constant mass and fixed reference is determined by its _____

Answer :  

position

Q8. 

Static coefficient of friction is greater than the kinetic coefficient of friction.

Answer :  

True

Q9. 

The value of the frictional force for a body is always constant when it is static and does not vary with applied force.

Answer :  

False

Q10. 

Which of the following is correct?

Answer :  

The kinetic energy of a system can be changed without changing the momentum

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