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Mdcat-past-papers - NUMS - Physics Quiz

Filters: Board: NUMS | Subject: Physics |
41. In projectile motion for which angle maximum height is half of its range?



42. The horizontal range of projectile will be maximum when?



43. The area under force-displacement graph gives:



44. At what angle of applied force, work done will be 50%?



45. A block of mass 20g is thrown vertically upward with a speed of 10 m/s. The work done by the force of gravity during its upward motion is:



46. The area under force-displacement graph gives us



47. If by some phenomenon the Earth contracts to one half of its present size, then gravitational potential energy becomes:



48. The product of force and velocity is:



49. The amount of work done in moving a body at certain point in a gravitational field to a position of zero potential such that the body is never accelerated is called:



50. The absolute potential energy is given as Ug = –GmMₑ/R. The negative sign indicates that Earth's gravitational field for mass "m" is:



51. Kilowatt-hour is unit of:



52. An electric motor of power 2hp is installed in an industrial unit. Its power is:



53. Power is dot product of:



54. What is the power of electric motor when it performs work of 64 × 10⁶J in 8 seconds?



55. Four bulbs of 100W each, two bulbs of 100W, each works for 2 hours daily. The energy consumed in 30 days will be:



56. Food we eat in 1 day ≈ energy of:



57. If speed of car is halved, kinetic energy becomes:



58. 1hp is equal to:



59. 1KWb =



60. An object has 1J of P.E. What is work done in terms of height?



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