# PPSC Lecturer of Physics Online Test 50 Solved MCQs

Online Free Taleem is free online MCQâ€™s test related to Lecturer Physics. All the individuals who are going to appear in Lecturer Physics written test can attempt these tests in order to prepare for it in best possible way. Our tests of Lecturer of Physics include all the important questions and Past Paper ofÂ  Lecturer Physics, that have extremely high amount of chances for been included in the actual exam which make our test undoubtedly the best source of preparation.

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There will be 25 multiple choice question in the test.
Answer of the questions will change randomly each time you start this test.
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 Test Instructions:- Test Name Lecturer PhysicsÂ Subject Physics Test 50 Test Type MCQs Total Questions 25 Total Time 20 Minutes Total Marks 100
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You have 20 minutes to pass to the quiz.

PPSC LECTURER OF PHYSICS TEST NO. 50

1 / 25

A 12-kg crate rests on a horizontal surface and a boy pulls on it with a force that is 30â—¦ below the horizontal. If the coefficient of static friction is 0.40, the minimum magnitude force he needs to start the crate moving is:

2 / 25

A box rests on a rough board 10 meters long. When one end of the board is slowly raised to a height of 6 meters above the other end, the box begins to slide. The coefficient of static friction is:

3 / 25

A horizontal force of 5.0N pushes a 0.50-kg book against a vertical wall. The book is initially at rest. If the coefficients of friction are Î¼s = 0.6 and Î¼k = 0.80, the magnitude of the frictional force is:

4 / 25

A horizontal force of 12N pushes a 0.5-kg book against a vertical wall. The book is initially at rest. If the coefficients of friction are Î¼s = 0.6 and Î¼k = 0.8 which of the following is true?

5 / 25

A massless rope passes over a massless pulley suspended from the ceiling. A 4-kg block is attached to one end and a 5-kg block is attached to the other end. The acceleration of the 5-kg block is:

6 / 25

A 13-N weight and a 12-N weight are connected by a massless string over a massless, frictionless pulley. The 13-N weight has a downward acceleration with magnitude equal to that of a freely falling body times:

7 / 25

A horizontal force of 5.0N pushes a 0.50-kg block against a vertical wall. The block is initially at rest. If Î¼s = 0.60 and Î¼k = 0.80, the acceleration of the block in m/s2 is:

8 / 25

A car is traveling at 15m/s on a horizontal road. The brakes are applied and the car skids to a stop in 4.0 s. The coefficient of kinetic friction between the tires and road is:

9 / 25

A brick slides on a horizontal surface. Which of the following will increase the magnitude of the frictional force on it?

10 / 25

A horizontal shove of at least 200N is required to start moving a 800-N crate initially at rest on a horizontal floor. The coefficient of static friction is:

11 / 25

A short 10-g string is used to pull a 50-g toy across a frictionless horizontal surface. If av3.0 Ã— 10âˆ’2-N force is applied horizontally to the free end, the force of the string on the toy, at the other end, is:

12 / 25

A horizontal force of 12N pushes a 0.50-kg book against a vertical wall. The book is initially at rest. If Î¼s = 0.6 and Î¼k = 0.80, the acceleration of the book in m/s2 is:

13 / 25

A bureau rests on a rough horizontal surface (Î¼s = 0.50, Î¼k = 0.40). A constant horizontal force, just sufficient to start the bureau in motion, is then applied. The acceleration of the bureau is:

14 / 25

A 40-N crate rests on a rough horizontal floor. A 12-N horizontal force is then applied to it. If the coefficients of friction are Î¼s = 0.5 and Î¼k = 0.4, the magnitude of the frictional force on the crate is:

15 / 25

A forward horizontal force of 12N is used to pull a 240-N crate at constant velocity across a horizontal floor. The coefficient of friction is:

16 / 25

A 5.0-kg crate is resting on a horizontal plank. The coefficient of static friction is 0.50 and the coefficient of kinetic friction is 0.40. After one end of the plank is raised so the plank makes an angle of 25â—¦ with the horizontal, the force of friction is:

17 / 25

A crate is sliding down an incline that is 35â—¦ above the horizontal. If the coefficient of kinetic friction is 0.40, the acceleration of the crate is:

18 / 25

A 50-N force is applied to a crate on a horizontal rough floor, causing it to move horizontally. If the coefficient of kinetic friction is 0.50, in what direction should the force be applied to obtain the greatest acceleration?

19 / 25

The coefficient of kinetic friction:

20 / 25

A crate resting on a rough horizontal floor is to be moved horizontally. The coefficient of static friction is 0.40. To start the crate moving with the weakest possible applied force, in what direction should the force be applied?

21 / 25

A professor holds an eraser against a vertical chalkboard by pushing horizontally on it. He pushes with a force that is much greater than is required to hold the eraser. The force of friction exerted by the board on the eraser increases if he:

22 / 25

A block is placed on a rough wooden plane. It is found that when the plane is tilted 30â—¦ to the horizontal, the block will slide down at constant speed. The coefficient of kinetic friction of the block with the plane is:

23 / 25

When the brakes of an automobile are applied, the road exerts the greatest retarding force:

24 / 25

The speed of a 4.0-N hockey puck, sliding across a level ice surface, decreases at the rate of 0.61m/s2. The coefficient of kinetic friction between the puck and ice is:

25 / 25

A 24-N horizontal force is applied to a 40-N block initially at rest on a rough horizontal surface. If the coefficients of friction are Î¼s = 0.5 and Î¼k = 0.4, the magnitude of the frictional force on the block is: