PTS Physics Mcqs Online Test 8

PTS Physics Mcqs Online Test 8 Preparation Question Answer


 

  
  

   
           

   
       
    

     
      
       

        
                
        
                
         
          Work done by variable force is determine by dividing?
     
  force into small interval  
 
 
 
    
 displacement into small interval  
 
 
 
    
 both force and displacement into small intervals  
 
 
 
    
  force into small and displacement into large intervals 
 
 
 
 
    Correct!
 Wrong!
 
 
 
 
 
  
  
    
       Work done by the force of friction is?
     
  always positive  
 
 
 
    
  always negative . 
 
 
 
    
  positive only for small frictional force  
 
 
 
    
 positive only for large frictional force 
 
 
 
 
    Correct!
 Wrong!
 
 
 
 
 
  
  
    
       Gravitational P.E of a body has?
     
  no formula  
 
 
 
    
 a formula mgh only . 
 
 
 
    
  a formula  
 
 
 
    
  no general formula 
 
 
 
 
    Correct!
 Wrong!
 
 
 
 
 
  
  
    
       The tides raise the mater in the see roughly in a day?
     
  once  
 
 
 
    
  twice  
 
 
 
    
  four time  
 
 
 
    
  eight time 
 
 
 
 
    Correct!
 Wrong!
 
 
 
 
 
  
  
    
       When the speed of a moving body is doubled then?
     
  its K.E is doubled  
 
 
 
    
 its acceleration is doubled  
 
 
 
    
 its P.E is doubled  
 
 
 
    
  its momentum is doubled 
 
 
 
 
    Correct!
 Wrong!
 
 
 
 
 
  
  
    
       The highest value of escape velocity in solar system is planet?
     
  Earth .  
 
 
 
    
 Neptune  
 
 
 
    
 Jupiter  
 
 
 
    
  Moon 
 
 
 
 
    Correct!
 Wrong!
 
 
 
 
 
  
  
    
       Work done on the body equals to the?
     
  change in its K.E always  
 
 
 
    
  change in its P.E always  
 
 
 
    
 change in its K.E and change in its P.E  
 
 
 
    
  neither change in K.E and nor change in its P.E 
 
 
 
 
    Correct!
 Wrong!
 
 
 
 
 
  
  
    
       The escape velocity of a body in gravitational field of earth is independent of?
     
  its mass  
 
 
 
    
 the angle at which it is thrown  
 
 
 
    
  both its mass and the angle at which it is thrown  
 
 
 
    
 gravitational field of earth 
 
 
 
 
    Correct!
 Wrong!
 
 
 
 
 
  
  
    
       If velocity is doubled then?
     
  . momentum increases 4 times and K.E increases 2 times  
 
 
 
    
  momentum and K.E. remain same  
 
 
 
    
 momentum increases 2 times and K.E increases constant  
 
 
 
    
 momentum increases 2 times and K.E increases 4 time 
 
 
 
 
    Correct!
 Wrong!
 
 
 
 
 
  
  
    
       The source of geothermal energy is?
     
  decay of radioactive element in the earth  
 
 
 
    
  compression of material in the earth  
 
 
 
    
 residual lost of the earth  
 
 
 
    
 all as said in a - b and c 
 
 
 
 
    Correct!
 Wrong!
 
 
 
 
 
  
  
    
 
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