## PPSC Lecturer of Physics Online Test 52 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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 Test Instructions:- Test Name Lecturer PhysicsÂ Subject Physics Test 52 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. 51

1 / 25

A ball is thrown downward from the edge of a cliff with an initial speed that is three times the terminal speed. Initially its acceleration is

2 / 25

One end of a 1.0-m long string is fixed, the other end is attached to a 2.0-kg stone. The stone swings in a vertical circle, passing the bottom point at 4.0m/s. The tension force of the string at this point is about:

3 / 25

The driver of a 1000-kg car tries to turn through a circle of radius 100m on an unbanked curve at a speed of 10m/s. The actual frictional force between the tires and slippery road has a magnitude of 900 N. The car:

4 / 25

If a certain car, going with speed v1, rounds a level curve with a radius R1, it is just on the verge of skidding. If its speed is now doubled, the radius of the tightest curve on the same road that it can round without skidding is:

5 / 25

An object moves around a circle. If the radius is doubled keeping the speed the same then the magnitude of the centripetal force must be:

6 / 25

The magnitude of the force required to cause a 0.04-kg object to move at 0.6m/s in a circle of radius 1.0m is:

7 / 25

A ball is thrown upward into the air with a speed that is greater than terminal speed. It lands at the place where it was thrown. During its flight the force of air resistance is the greatest:

8 / 25

A 1000-kg airplane moves in straight flight at constant speed. The force of air friction is 1800 N. The net force on the plane is:

9 / 25

One end of a 1.0-m string is fixed, the other end is attached to a 2.0-kg stone. The stone swings in a vertical circle, passing the top point at 4.0m/s. The tension force of the string (in newtons) at this point is about:

10 / 25

An object moving in a circle at constant speed:

11 / 25

A 0.2-kg stone is attached to a string and swung in a circle of radius 0.6m on a horizontal and frictionless surface. If the stone makes 150 revolutions per minute, the tension force of the string on the stone is:

12 / 25

A 5.0-kg crate is on an incline that makes an angle of 30â—¦ with the horizontal. If the coefficient of static friction is 0.50, the minimum force that can be applied parallel to the plane to hold the crate at rest is:

13 / 25

An object moves in a circle. If the mass is tripled, the speed halved, and the radius unchanged, then the magnitude of the centripetal force must be multiplied by a factor of:

14 / 25

A 5.0-kg crate is on an incline that makes an angle of 30â—¦ with the horizontal. If the coefficient of static friction is 0.5, the maximum force that can be applied parallel to the plane without moving the crate is:

15 / 25

An object of mass m and another object of mass 2m are each forced to move along a circle of radius 1.0m at a constant speed of 1.0m/s. The magnitudes of their accelerations are:

16 / 25

Block A, with mass mA, is initially at rest on a horizontal floor. Block B, with mass mB, is initially at rest on the horizontal top surface of A. The coefficient of static friction between the two blocks is Î¼s. Block A is pulled with a horizontal force. It begins to slide out from under B if the force is greater than:

17 / 25

Why do raindrops fall with constant speed during the later stages of their descent?

18 / 25

A block is suspended by a rope from the ceiling of a car. When the car rounds a 45-m radius horizontal curve at 22m/s (about 50 mph), what angle does the rope make with the vertical?

19 / 25

If a satellite moves above Earthâ€™s atmosphere in a circular orbit with constant speed, then:

20 / 25

A car rounds a 75-m radius curve at a constant speed of 18m/s. A ball is suspended by a string from the ceiling the car and moves with the car. The angle between the string and the vertical is:

21 / 25

An automobile moves on a level horizontal road in a circle of radius 30 m. The coefficient of friction between tires and road is 0.50. The maximum speed with which this car can round this curve is:

22 / 25

Uniform circular motion is the direct consequence of:

23 / 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 30â—¦ with the horizontal, the force of friction is:

24 / 25

A 800-N passenger in a car presses against the car door with a 200N force when the car makes a left turn at 13m/s. The (faulty) door will pop open under a force of 800 N. Of the following, the least speed for which the passenger is thrown out of the car is:

25 / 25

A ball is thrown upward into the air with a speed that is greater than terminal speed. On the way up it slows down and, after its speed equals the terminal speed but before it gets to the top of its trajectory: