General Physics Questions And Answers, Set 21

 

General Physics Questions And Answers

Q1. 

Which of the following laws of motion is related to inertia?

Answer : 

First law

Q2. 

Which one of the following is not an example of the third law of motion?

Answer : 

Skiing

Q3. 

For what value of e is a collision partially elastic?

Answer : 

0 < e < 1

Q4. 

What are the units of power?

Answer : 

Watt

Q5. 

The maximum potential energy in a roller coaster is at _____

Answer : 

the top of the steep climb

Q6. 

The potential energy possessed by a spring is also known as _____

Answer :

Elastic potential energy

Q7. 

Since the potential energy of an object depends on the acceleration due to gravity and since the acceleration due to gravity decreases as altitude increases, we can conclude that the potential energy of an object decreases as altitude increases.

Answer : 

False

Q8. 

A “variable force” is the force that only increases with time.

Answer :  

False

Q9. 

Limiting friction of a body depends on _____

Answer :  

Nature of surfaces

Q10. 

When a body is falling freely under the influence of gravity, the kinetic energy remains constant.

Answer :  

False

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