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Class 11 Physics (Part I) Chapter 3 Laws Of Motion Quiz 7 (60 MCQs)

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1. You and your dad are moving the couch from one side to another. Your dad pushes with a force of 35 N to the right and you push with a force of 25 N right. What is the net force on the couch?
2. Friction is a force that acts
3. When looking at friction problems, if the net force in the x-direction on an object is zero, what can we say about its acceleration?
4. What do we call it when the net force is greater than zero?
5. One object has twice as much mass as another object. The first object also has also twice as much .....
6. If the force acting on a body is doubled, then the acceleration produced is
7. A student crashed a blue cart into a block three different ways, all at fast speed. One time the cart had 0 washers, one time it had 4 washers and one time it had 8 washers. In which case was the force on the cart largest?
8. Force, mass, and acceleration are all .....
9. A magician pulls a tablecloth out from under some very expensive dishes, but the dishes do not move. Which law is this?
10. Mass of an object can be defined by .....
11. What is the First Law of Motion?
12. The force that prevents a ball rolling on the ground from continuing on it's path forever is .....
13. A greater applied force is required to move an object with a greater mass than one with a smaller mass.
14. A moving object will keep on moving until an outside force stops it.
15. Which law explains when a magician pulls a tablecloth out from under dishes and glasses on a table without disturbing them.
16. A basketball player pushes off of the floor to shoot a lay up. As the student exerts force on the floor, which of these also occurs?
17. An object is resting motionless on a surface. According to Newton's 1st Law, the object will only start to move if
18. When all the forces acting on an object cancel each other out; the net force is zero
19. The amount of matter in an object is .....
20. You are holding a bowl of hot soup while standing in the kitchen. As you begin to move, the soup spills out of the bowl. Upon reflection you realize that
21. Which best explains the law of force and acceleration (Newton's 2nd Law of Motion)
22. Lily blew up a balloon in science class and let it go. What science concept is being shown as the balloon flies around the room?
23. Two football players with mass 75 kg and 100 kg run directly toward each other with speeds of 6 m/s and 8 m/s respectively. If they grab each other as they collide, the combined speed of the two players just after the collision would be:
24. A push or pull that can change the motion of an object, measured with a spring scale in Newton (N) units
25. A ..... is anything that can change the state of motion of an object.
26. Who was Sir Isaac Newton?
27. Explains why we need seat belts in a car crash.
28. 12)Which of the following is Newton's Law on Gravitation?
29. What units of measurement are used to measured Force?
30. True or false:An object resting on the ground can move without force.
31. The combined force of all forces acting on an object is the ..... force.
32. The Father of Modern Science is .....
33. The formula for mass is .....
34. A force one object can apply to another object without touching it
35. Pushing a chair:contact force;falling fruits: .....
36. The tendency of a physical object to remain still or continue moving until force acts upon the object
37. CONCEPT RECALL:It is the tendency of an object to persist in its state of rest or of uniform motion in a straight line.
38. The ..... of the force on one object is equal to the size of the force on a second object.
39. A bicycle rode 21 meters in 3 minutes. What was the speed of the bicycle?
40. When two billiard balls collide, which is ALWAYS conserved?
41. A jellyfish swims through the water by pulling in water and then pushing the water back out in the opposite direction. This is an example of which law of motion?
42. Stated mathematically as:F=ma
43. The axis of the fixed edge about which the thing is rotated is called as .....
44. A person in a car slides to the right when going through a very sharp left turn on the highway.
45. Newton's III law is applicable to
46. Newton's law that states that for every action there is an equal and opposite reaction.
47. An object in motion will stay in what kind of motion as long as the net forces acting on it are zero?
48. The law of (a) is if an object is at rest it will stay at rest until an unbalanced force is acted upon it.
49. ..... is the force that pulls objects down towards the center of the Earth.
50. Common sense tells us it's harder to move a heavier object. Which of Newton's laws proves this?
51. Which of Newton's Three Law does the following example illustrate? The blood in your head rushes to your feet when riding on an elevator this is descending and abruptly stops.
52. A book sitting on the table does not move.
53. A 50kg cart will accelerate at 4 m/s$^{2}$ when pushed with a force of 200N. This relationship demonstrates which of Newton's Laws of Motion?
54. A cyclist going round in a circular track at a constant speed has:
55. The velocity of a body of mass 20kg decreases from 20ms$^{-1}$ to 5ms$^{-1}$ in a distance of 100m. Force on the body is
56. The greater the force the greater the acceleration.
57. If two people are pulling against each other with forces of 500 N and 600 N, there is a/an
58. Is magnetism a contact or noncontact force?
59. A rocket pushes burning gases DOWN which causes the rocket to launch UP. Which law is this?
60. A rocket with a lift-off mass 3.5 x 10$^{4}$ kg is blasted upwards with an initial acceleration of 10ms$^{-2}$. Then the initial thrust of the blast is
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