MCQ test first year physics chapter 3 motion | Mdcat preparation | ECAT & MCAT

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1.
A car covers half of its journey with a speed of 20m/s and other half with a speed of 30m/s. The average speed of the car during its total journey is


2.
According to the law of conservation of momentum if the net external__________is zero then the total momentum of the system is constant


3.
If L is the limiting friction and S is the sliding friction and R is the rolling friction then the correct order for friction is

4. At what angle a plane is inclined so that the acceleration due to gravity on such a plan becomes half


5. A block of 10kg is placed on a plane that is inclined at an angle of 60° what will be the normal reaction on such a plane



6. Which one of the following is directional


7. Walking of a man on earth is an example of


8. A ball is dropped from the top of a building, what is height of a building if it takes 2 seconds to reach the ground


9. A car is moving with a uniform velocity of 20 m/s what will be acceleration after 2 seconds


10. A car is moving with uniform speed, what is the magnitude of speed if it covers a distance of 5 meter in 3rd second


11. 10. A train covers 60 miles between 1 pm. and 3 pm. How fast was it going at 2 pm.?


12. Slope of velocity time graph is equal to


13. 120 m long train takes 20 second to cross a bridge while moving with a speed of 72 km per hour, what is the length of bridge


14. If two bodies of different masses m1 and m2 are initially at rest. If a force F acts on both the bodies for the time t, then which quantity will be equal for both the bodies after time t?



15. The rate of change of linear momentum of a body is proportional to the ________ acting on it.


16. A force of 100 N is applied on a body at rest. The body covers 10 m in 5 s due to this force. Mass of the body in kg is


17. A block of mass 5 kg is moving at a speed of 10 m/s. A force stops it in 2 seconds, the value of force is



18. Two unequal masses are dropped from the top of a tower, after 2 seconds they will have the same


19. The people of _________were the pioneer of decimal system


20._________ is an experimental science which depends heavily upon the objective observations and measurement of natural phenomenon




21. A scientist who made calculations in connection with solar system, change in season, eclipse of moon and sun and other astronomical phenomenon

a. Jabir bin Hayyan
b. Al Battani
c. Al Beruni
d. Ibn-e- Sina

22. A scientist who constructed the pinhole camera is


23. People who used to measure the flood level in the river Nile is



24. A car is moving with a velocity of 40 km/h from point A to B and comes back to point A with a speed of 60 km/h back to the A its average speed is




25. If the velocity time graph is a straight line parallel to the x-axis then


26. What would be the displacement of a particle moving in a circular path of radius r after a displacement of half a circle?




27.Which of the following situations is true and possible?



28. The numerical ratio of displacement to distance is always
a. Equal to 1
b. Greater or equal to 1
c. Less or equal to 1
d. Always greater than 1

29. A sports car of mass 1000 kg accelerates from rest to 40 m/s in 4s, Assuming that there is no friction, the force exerted by the engine is



30. A train travelling at 20 m/s accelerates at 2 m/s2 for 10 s, the distance travelled by train is