larpoh cet monthly

in edu •  last year 

G10, Physics First Semester Test Time Allowed (45)minutes
Answer All Questions

  1. Fill in the blanks. (5 marks)
    (1) The value of gravitational constant is ………. .m3kg-1s-2.
    (2) A unit vector has the magnitude of ………. unit.
    (3) Since displacement has both ………. and direction, displacement is a vector quantity.
    (4) 1 N force acting horizontally on a body of mass 1 kg gives it an acceleration of ……… .
    (5) The unit of work in British system is ………. .
  2. Define “work”? A child pulling a toy car with a 10N force. The direction of the force makes an
    angle of 20° with the horizontal plane. If the car moves 6 m, how much work does the child do?
    3.Define the coefficient of volume expansion. A heat resistance glass at 15℃ is fully filled
    with 250 cm3 of glycerine. If the temperature increase to 25 ℃ how much glycerine overflows? The
    coefficient of volume expansion of glycerine is 5.1 x 10-4K-1 and that of heat resistance glass is
    0.09 x 10-4K-1.
  3. A lift weighing 200lb is pulled up by a cable of tension 5000lbl Find the mass of the lift and its upward
    acceleration. Which is more difficult to move a wooden box or a big stone? Why?
    5.Is if correct to describe Newton’s second law in symbols as F α a?.
    A 3 ton car moving with the velocity of 30 mi h-1 is brought to stop in 2 s. Find the resisting force of the
    brakes acting on the car.
Authors get paid when people like you upvote their post.
If you enjoyed what you read here, create your account today and start earning FREE STEEM!
Sort Order:  

You got a 2.91% upvote from @postpromoter courtesy of @thurrein!

Want to promote your posts too? Check out the Steem Bot Tracker website for more info. If you would like to support the development of @postpromoter and the bot tracker please vote for @yabapmatt for witness!