Physics Practice MCQ Page 8

Multiple Choice questions for Physics in the sets of 10 each on one page with questions and answers. All sets are useful in the preparation of subject tests for employment or admission.
Question: 271   A car is traveling due east at 40 miles /hr turns south and maintains the same speed. What is the change in velocity of car?
  1. 40 miles /hr east-south
  2. 400 miles /hr east-south
  3. 80 miles /hr east-south
  4. none
Question: 272   A force of6.0 N acts on a body of mass 1 kg. for some time during which the body attains a velocity of 30 m/s/ The time (in second) for which the force acts on the body is
  1. 26
  2. 6
  3. 5
  4. 2
Question: 273   Forces of 3N, 4N and 12N act at a point in mutually perpendicular direction. The magnitude of the resultant force in newton is
  1. 13
  2. 11
  3. 5
  4. indeterminate from the information given
Question: 274   Which of the following is not necessary for work to be done?
  1. an applied force
  2. a force component along the displacement
  3. a displacement
  4. a constant speed
Question: 275   A body at rest may have
  1. speed
  2. momentum
  3. velocity
  4. energy
Question: 276   The weight of a 10 kg block is
  1. 98 N
  2. 9.8 N
  3. 10 N
  4. 0.98 N
Question: 277   A fixed pulley is employed to
  1. do more work with the same force but without using pulley
  2. change the direction of force
  3. same work
  4. have mechanical advantage greater than one
Question: 278   The static friction is
  1. always greater than the dynamic friction
  2. always less than the dynamic friction
  3. equal to the dynamic fiction
  4. sometimes greater and sometimes less than the dynamic friction
Question: 279   Which is the suitable method to decrease friction?
  1. polishing
  2. ball and roller bearings
  3. lubrication
  4. all of the above
Question: 280   The force of friction that comes into action after the motion has started is known as
  1. dynamic friction
  2. static friction
  3. friction only
  4. limiting friction
Question: 284   Let a disc, a cylinder, a solid sphere, and a ring be rolled down in an inclined plane simultaneously. Which will reach first?
  1. disc
  2. cylinder
  3. solid sphere
  4. ring
Question: 285   Which kind of storage device can be carried around?
  1. Floppy disk
  2. Hard disk
  3. System cabinet
  4. Hard disk derive
  5. Floppy disk drive

Answers to the questions of Physics on this page

Following list gives the correct choice for the answer of the Physics mcqs.
271 . D       272 . C       273 . B       274 . D       275 . D       276 . A       277 . B       278 . D       279 . D       280 . D       284 . C       285 . A      

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