Work, Energy and Power (AIIMS (All India Institute of Medical Sciences) Physics): Questions 11  15 of 25
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Question number: 11
» Work, Energy and Power » Power
Question
A body moves along the straight line by a machine delivering constant power. The ratio of distance at and moved by the body is –
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


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Question number: 12
» Work, Energy and Power » WorkEnergy Theorem
Question
A bullet when fired at a target with a velocity of , penetrates 4.5 meter into it. If the bullet is fired with the same velocity at a similar target with a thickness 0.5 meter, then it will emerge from it with a velocity of –
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


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Question number: 13
» Work, Energy and Power » Elastic and Inelastic Collisions
Question
A wire suspended vertically from one end is stretched by attaching a weight of to the lower end. The weight stretches the wire by 2 mm. If the elastic energy stored in the wire is 0.4 J, what is the value of ?
Choices
Choice (4)  Response  

a.  400 N 

b.  100 N 

c.  600 N 

d.  250 N 

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Question number: 14
» Work, Energy and Power » Kinetic Energy
Question
A V – shape is created by joining two same sized roads. The angle between two rods is . If this system is rotating about a line passing through their ends which are joined and perpendicular to their plane, then the work done (W) is –
Choices
Choice (4)  Response  

a.  W is independent of . 

b.  Maximum for 

c.  Maximum for 

d.  Maximum for 

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Question number: 15
» Work, Energy and Power » Kinetic Energy
Question
Two bodies with kinetic energies in the ratio of are moving with equal linear momentum. The ratio of their masses is –
Choices
Choice (4)  Response  

a. 


b. 


c. 


d. 


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