Rainbow 🌈 mind map and MCQ of Kinetic energy

             Rainbow 🌈 mind map Kinetic energy

Definition: The energy possessed due to motion of a body. 

Quantity:  Derived quantity

Units: CGS- erg , SI- joule 

Formula:   K.E = 1/2 m v²

Factors affecting : 1. Mass of a body ( more mass ,more K E) 

                                 2. Speed of a body( more speed, more K.E)

Transfer to other form:

• K.E can change into any other form such as heat , light  etc.

Related to work: 

K.E is equal to the work done in moving the body. 

Rainbow 🌈 MCQ
 Topic - Kinetic Energy 

1. K.E of a body is due to 

 A) its position 
 B) it's motion 
 C) it's configuration 
 D) None of above 

ANSWER= (B) it's motion
Explain:- K.E of a body is due to its motion. 

 

2. Kinetic energy is

 A)vector quantity 
 B) derived quantity 
 C) Fundamental quantity 
 D) not a physical quantity 

ANSWER= (B) Fundamental quantity 
Explain:- Length is a fundamental quantity 

 

3. S.I unit of Kinetic energy is

 A) cm
 B) m²
 C) joule 
 D) newton 

ANSWER= (C) joule
Explain:- S.I unit of K.E is joule

 

4. Factors affecting Kinetic energy 

 A) mass
 B) speed
 C) both
 D) None of above 

ANSWER= (C) both
Explain:- Factors affecting Kinetic energy are-1. Mass of a body 2. Speed of a body  

 

5. K.E = 

 A) 1/2 mv²
 B) 1/2 m+ v²
 C) 1/2 m²- v²
 D) None of above 

ANSWER= (A) 1/2 m v²
Explain:- K.E = 1/2 m v²

 

6. A fast moving stone breaks the window pane due to its

 A) kinetic energy 
 B) potential energy 
 C) its mass
 D) none of above 

ANSWER= (A) kinetic energy  
Explain:- A fast moving stone breaks the window pane due to its Kinetic energy. 

 

7. Kinetic energy is equal to _______ in moving the body initially at rest 

 A) work done
 B) potential 
 C) Heat energy 
 D) sound energy 

ANSWER= (A) work done

 Explain:-Kinetic energy is equal to work done in moving initially at rest.  

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