MCQ Question
1. What is the unit of force?
A) Joule
B) Newton
C) Watt
D) Meter
Answer: B) Newton
2. What is the SI unit of mass?
A) Kilogram
B) Gram
C) Newton
D) Pound
Answer: A) Kilogram
3. Which of the following is a vector quantity?
A) Mass
B) Speed
C) Distance
D) Force
Answer: D) Force
4. What does Newton’s first law of motion state?
A) Force equals mass times acceleration
B) Every action has an equal and opposite reaction
C) A body in motion stays in motion unless acted upon by an external force
D) Energy is neither created nor destroyed
Answer: C) A body in motion stays in motion unless acted upon by an external force
5. What is the formula for calculating force?
A) F = m × g
B) F = m × v
C) F = m × a
D) F = m ÷ a
Answer: C) F = m × a
6. What is the acceleration due to gravity on Earth?
A) 9.8 m/s²
B) 9.0 m/s²
C) 10.0 m/s²
D) 8.9 m/s²
Answer: A) 9.8 m/s²
7. If an object moves with uniform speed, what can we say about its acceleration?
A) It is zero
B) It is positive
C) It is negative
D) It is constant
Answer: A) It is zero
8. What does Newton’s second law of motion relate to?
A) Speed and distance
B) Force and acceleration
C) Mass and velocity
D) Energy and motion
Answer: B) Force and acceleration
9. The momentum of an object is calculated as:
A) Momentum = Mass × Acceleration
B) Momentum = Force × Time
C) Momentum = Mass × Velocity
D) Momentum = Distance × Time
Answer: C) Momentum = Mass × Velocity
10. Which of the following is true about friction?
A) Friction always helps in motion
B) Friction increases with smooth surfaces
C) Friction is a force that opposes motion
D) Friction decreases with rough surfaces
Answer: C) Friction is a force that opposes motion
11. What is the main cause of friction?
A) Gravity
B) Surface roughness
C) Speed
D) Temperature
Answer: B) Surface roughness
12. The rate of change of velocity is called:
A) Speed
B) Distance
C) Acceleration
D) Momentum
Answer: C) Acceleration
13. A force that slows down a moving object is called:
A) Applied force
B) Frictional force
C) Gravitational force
D) Tension force
Answer: B) Frictional force
14. The motion of an object when only the force of gravity acts on it is known as:
A) Circular motion
B) Uniform motion
C) Free fall
D) Projectile motion
Answer: C) Free fall
15. Which of the following is NOT a contact force?
A) Friction
B) Tension
C) Gravitational force
D) Normal force
Answer: C) Gravitational force
16. Which of the following laws explains the motion of planets around the sun?
A) Newton's First Law
B) Newton's Second Law
C) Newton's Third Law
D) Kepler's Law
Answer: D) Kepler's Law
17. A person jumping off a boat moves backward. This is an example of which law of motion?
A) Newton's First Law
B) Newton's Second Law
C) Newton's Third Law
D) Law of Inertia
Answer: C) Newton's Third Law
18. The tendency of an object to resist changes in its state of motion is called:
A) Momentum
B) Inertia
C) Acceleration
D) Force
Answer: B) Inertia
19. What is the momentum of a 2 kg object moving at a velocity of 4 m/s?
A) 6 kg·m/s
B) 8 kg·m/s
C) 10 kg·m/s
D) 12 kg·m/s
Answer: B) 8 kg·m/s
20. What happens to the velocity of an object when it is thrown upward against gravity?
A) It remains constant
B) It increases
C) It decreases
D) It stops immediately
Answer: C) It decreases
21. Which of the following is the correct relationship between work, force, and distance?
A) Work = Force × Velocity
B) Work = Force × Distance
C) Work = Distance ÷ Force
D) Work = Force ÷ Distance
Answer: B) Work = Force × Distance
22. When you push an object and it moves, you are doing:
A) Work
B) Energy
C) Force
D) Power
Answer: A) Work
23. The force required to move an object with constant velocity is equal to:
A) The force of friction
B) The normal force
C) The force of gravity
D) The applied force
Answer: A) The force of friction
24. What is the acceleration of an object if the net force acting on it is zero?
A) 0 m/s²
B) 9.8 m/s²
C) 10 m/s²
D) 1 m/s²
Answer: A) 0 m/s²
25. Which of the following is an example of an action-reaction pair?
A) Pushing a door
B) Walking on the ground
C) Lifting an object
D) A car moving
Answer: B) Walking on the ground
26. The force of attraction between any two objects due to their masses is called:
A) Tension force
B) Gravitational force
C) Electromagnetic force
D) Nuclear force
Answer: B) Gravitational force
27. The motion of an object under the influence of both gravity and air resistance is called:
A) Free fall
B) Uniform motion
C) Projectile motion
D) Circular motion
Answer: C) Projectile motion
28. What is the force acting on a 5 kg object accelerating at 2 m/s²?
A) 5 N
B) 10 N
C) 15 N
D) 20 N
Answer: B) 10 N
29. Which of the following is true about the friction between two surfaces?
A) It depends only on the weight of the object
B) It depends only on the surface area
C) It depends on the nature of the surfaces in contact
D) It depends on the speed of motion
Answer: C) It depends on the nature of the surfaces in contact
30. What is the work done by a force of 10 N in moving an object 5 m in the direction of the force?
A) 50 J
B) 100 J
C) 150 J
D) 200 J
Answer: A) 50 J
31. What is the formula for calculating momentum?
A) Momentum = Mass × Velocity
B) Momentum = Force × Acceleration
C) Momentum = Mass × Distance
D) Momentum = Force × Time
Answer: A) Momentum = Mass × Velocity
32. If a car travels 100 meters in 10 seconds, what is its speed?
A) 10 m/s
B) 20 m/s
C) 5 m/s
D) 100 m/s
Answer: C) 5 m/s
33. A body in motion remains in motion unless acted upon by an external force. This is an example of:
A) Newton's First Law
B) Newton's Second Law
C) Newton's Third Law
D) Kepler’s Laws
Answer: A) Newton's First Law
34. If two objects of different masses are dropped from the same height, which one will hit the ground first?
A) The lighter object
B) The heavier object
C) Both objects will hit at the same time
D) It depends on the shape of the objects
Answer: C) Both objects will hit at the same time
35. What is the SI unit of energy?
A) Joule
B) Newton
C) Watt
D) Pascal
Answer: A) Joule
36. The force of attraction between the Earth and an object is called:
A) Weight
B) Mass
C) Inertia
D) Friction
Answer: A) Weight
37. Which of the following statements is true about inertia?
A) The more mass an object has, the less inertia it has
B) An object with less mass has more inertia
C) An object at rest will stay at rest unless acted upon by a force
D) Inertia is dependent on the object's shape
Answer: C) An object at rest will stay at rest unless acted upon by a force
38. When you push a box across the floor, the box moves. The force you apply is known as:
A) Gravitational force
B) Applied force
C) Frictional force
D) Normal force
Answer: B) Applied force
39. What is the formula for calculating work done when a force is applied to an object?
A) Work = Force ÷ Distance
B) Work = Force × Distance
C) Work = Distance ÷ Force
D) Work = Force × Velocity
Answer: B) Work = Force × Distance
40. What happens to the speed of an object in free fall?
A) The speed remains constant
B) The speed decreases
C) The speed increases
D) The speed increases at a constant rate
Answer: C) The speed increases
41. Which of the following is an example of a non-contact force?
A) Friction
B) Tension
C) Gravitational force
D) Normal force
Answer: C) Gravitational force
42. What is the effect of a net force of zero on a moving object?
A) The object will stop moving
B) The object will continue moving at a constant velocity
C) The object will accelerate
D) The object will change direction
Answer: B) The object will continue moving at a constant velocity
43. A car accelerates at 3 m/s². If its mass is 1000 kg, what is the force acting on the car?
A) 3000 N
B) 1000 N
C) 5000 N
D) 1500 N
Answer: A) 3000 N
44. A stone is thrown vertically upwards. At the highest point of its trajectory, the stone's velocity is:
A) Zero
B) Maximum
C) Constant
D) Negative
Answer: A) Zero
45. When an object is moving in a circle at constant speed, it has:
A) No acceleration
B) A constant velocity
C) A changing velocity
D) No force acting on it
Answer: C) A changing velocity
46. What is the effect of increasing mass on the inertia of an object?
A) Increases the inertia
B) Decreases the inertia
C) Has no effect on the inertia
D) Increases the speed
Answer: A) Increases the inertia
47. What force opposes the motion of a moving object in air?
A) Gravitational force
B) Tension force
C) Air resistance
D) Magnetic force
Answer: C) Air resistance
48. A force of 30 N acts on an object. If the object moves 10 meters, what is the work done?
A) 300 J
B) 30 J
C) 100 J
D) 200 J
Answer: A) 300 J
49. The force that opposes the relative motion of two surfaces in contact is called:
A) Gravitational force
B) Friction
C) Tension
D) Normal force
Answer: B) Friction
50. Which of the following is a characteristic of uniform motion?
A) The object moves at varying speeds
B) The object moves in a curved path
C) The object moves with a constant speed
D) The object accelerates
Answer: C) The object moves with a constant speed
51. The speed of an object at a particular instant is called:
A) Average speed
B) Instantaneous speed
C) Constant speed
D) Uniform speed
Answer: B) Instantaneous speed
52. The formula for calculating acceleration is:
A)
B)
C)
D)
Answer: A)
53. What is the effect of friction on motion?
A) It always accelerates the object
B) It increases the speed of the object
C) It resists the motion of an object
D) It has no effect on motion
Answer: C) It resists the motion of an object
54. What happens to the force between two objects if the distance between them is doubled?
A) The force becomes double
B) The force becomes one-fourth
C) The force becomes one-half
D) The force becomes quadruple
Answer: B) The force becomes one-fourth
55. What is the weight of a 10 kg object on the surface of the Earth?
A) 10 N
B) 20 N
C) 30 N
D) 100 N
Answer: B) 20 N
56. A car moves at 60 km/h. How much distance will it cover in 2 hours?
A) 120 km
B) 180 km
C) 90 km
D) 60 km
Answer: A) 120 km
57. The unit of power is:
A) Watt
B) Joule
C) Newton
D) Pascal
Answer: A) Watt
58. Which of the following describes the motion of an object moving in a straight line with constant speed?
A) Uniform acceleration
B) Uniform motion
C) Non-uniform motion
D) Periodic motion
Answer: B) Uniform motion
59. The force exerted by a spring is directly proportional to its extension. This statement is known as:
A) Newton’s First Law
B) Hooke’s Law
C) Newton’s Third Law
D) Newton’s Second Law
Answer: B) Hooke’s Law
60. The motion of an object along a curved path due to a central force is called:
A) Linear motion
B) Circular motion
C) Harmonic motion
D) Rotational motion
Answer: B) Circular motion
61. A body has a mass of 4 kg and accelerates at 3 m/s². What is the force acting on it?
A) 12 N
B) 7 N
C) 4 N
D) 3 N
Answer: A) 12 N
62. The energy possessed by an object due to its motion is called:
A) Potential energy
B) Kinetic energy
C) Thermal energy
D) Chemical energy
Answer: B) Kinetic energy
63. The force responsible for the motion of an object in free fall is:
A) Gravitational force
B) Frictional force
C) Normal force
D) Air resistance
Answer: A) Gravitational force
64. Which of the following is true about a satellite in orbit?
A) The satellite accelerates downward
B) The satellite is not under the influence of gravity
C) The satellite experiences a centripetal force
D) The satellite’s velocity is zero
Answer: C) The satellite experiences a centripetal force
65. What is the speed of a car moving 100 meters in 5 seconds?
A) 15 m/s
B) 20 m/s
C) 25 m/s
D) 10 m/s
Answer: B) 20 m/s
66. When an object moves with a uniform velocity, what is its acceleration?
A) Zero
B) Positive
C) Negative
D) Constant
Answer: A) Zero
67. Which of the following forces are always acting on an object in free fall near the Earth’s surface?
A) Friction and tension
B) Tension and air resistance
C) Gravitational force and air resistance
D) Gravitational force only
Answer: D) Gravitational force only
68. What is the unit of acceleration?
A) m/s
B) m/s²
C) m²/s
D) s²
Answer: B) m/s²
69. A moving object experiences a change in velocity. This means the object is:
A) Not accelerating
B) Moving with uniform speed
C) Accelerating
D) Moving in a straight line
Answer: C) Accelerating
70. A body of mass 2 kg is moving with a velocity of 3 m/s. What is its momentum?
A) 2 kg·m/s
B) 5 kg·m/s
C) 6 kg·m/s
D) 9 kg·m/s
Answer: C) 6 kg·m/s
71. What is the effect of a net force of zero on an object at rest?
A) The object will start moving
B) The object will stay at rest
C) The object will accelerate
D) The object will change direction
Answer: B) The object will stay at rest
72. Which of the following is an example of motion with constant acceleration?
A) A car moving at a constant speed on a straight road
B) A ball thrown straight up
C) A car moving with variable speed
D) A person walking at a steady pace
Answer: B) A ball thrown straight up
73. The friction between the tires of a car and the road provides:
A) The necessary force for the car to accelerate
B) A decrease in the speed of the car
C) A net force in the opposite direction
D) No effect on the motion
Answer: A) The necessary force for the car to accelerate
74. What does the slope of a distance-time graph represent?
A) Speed
B) Velocity
C) Acceleration
D) Force
Answer: A) Speed
75. A 5 kg object is moving with a velocity of 2 m/s. What is its kinetic energy?
A) 5 J
B) 10 J
C) 15 J
D) 20 J
Answer: B) 10 J
76. What is the total distance traveled by a car moving at a constant speed of 20 m/s for 10 seconds?
A) 200 m
B) 100 m
C) 150 m
D) 50 m
Answer: A) 200 m
77. The force that opposes the motion of an object when it slides over a surface is called:
A) Static friction
B) Rolling friction
C) Sliding friction
D) Fluid friction
Answer: C) Sliding friction
78. A body is said to be in uniform motion if:
A) It moves in a straight line with varying speed
B) It moves in a straight line with constant velocity
C) It moves in a circular path
D) Its speed increases with time
Answer: B) It moves in a straight line with constant velocity
79. What is the weight of a 10 kg object in a region where the acceleration due to gravity is 9.8 m/s²?
A) 10 N
B) 9.8 N
C) 98 N
D) 100 N
Answer: C) 98 N
80. The acceleration of an object is the rate of change of its:
A) Mass
B) Velocity
C) Distance
D) Force
Answer: B) Velocity
81. What is the force required to accelerate a 3 kg object by 2 m/s²?
A) 1 N
B) 3 N
C) 6 N
D) 5 N
Answer: C) 6 N
82. Which of the following objects is in uniform circular motion?
A) A ball thrown upward
B) A car moving in a straight line
C) A satellite orbiting the Earth
D) A pendulum swinging back and forth
Answer: C) A satellite orbiting the Earth
83. When an object moves with constant speed, what is its acceleration?
A) Zero
B) Positive
C) Negative
D) Varying
Answer: A) Zero
84. The change in velocity of an object per unit time is known as:
A) Force
B) Speed
C) Acceleration
D) Distance
Answer: C) Acceleration
85. A ball is dropped from a height. What is its velocity just before it hits the ground?
A) Zero
B) The same as when it was dropped
C) It depends on the height from which it is dropped
D) It increases with time
Answer: C) It depends on the height from which it is dropped
86. Which of the following forces are responsible for the motion of a rocket in space?
A) Air resistance and thrust
B) Friction and thrust
C) Thrust and gravitational pull
D) Thrust only
Answer: D) Thrust only
87. The work done in lifting a 5 kg object through a height of 3 meters is:
A) 15 J
B) 30 J
C) 45 J
D) 50 J
Answer: B) 30 J
88. What is the rate of change of momentum of an object?
A) Force
B) Speed
C) Velocity
D) Mass
Answer: A) Force
89. The net force acting on an object is 0. What can be concluded about the object’s motion?
A) The object is accelerating
B) The object is at rest
C) The object is moving with constant velocity
D) The object’s velocity is decreasing
Answer: C) The object is moving with constant velocity
90. What does a curved line in a velocity-time graph indicate?
A) The object is at rest
B) The object is moving with constant velocity
C) The object is accelerating or decelerating
D) The object is moving with uniform motion
Answer: C) The object is accelerating or decelerating
91. The force responsible for the circular motion of the Earth around the Sun is:
A) Gravitational force
B) Frictional force
C) Tension force
D) Magnetic force
Answer: A) Gravitational force
92. What happens to the gravitational force between two objects if the distance between them is reduced to half?
A) The force becomes four times stronger
B) The force becomes half
C) The force remains the same
D) The force becomes twice as strong
Answer: A) The force becomes four times stronger
93. A car starts from rest and accelerates at 2 m/s² for 5 seconds. What is the final velocity of the car?
A) 2 m/s
B) 10 m/s
C) 5 m/s
D) 20 m/s
Answer: B) 10 m/s
94. What is the formula for calculating the gravitational force between two objects?
A)
B)
C)
D)
Answer: A)
95. Which of the following best describes an object in free fall?
A) It moves downward with increasing speed due to gravity
B) It moves upward with increasing speed
C) It moves with constant speed
D) It does not move at all
Answer: A) It moves downward with increasing speed due to gravity
96. The motion of a body under the influence of only gravity is called:
A) Projectile motion
B) Free fall
C) Uniform motion
D) Non-uniform motion
Answer: B) Free fall
97. The motion of a body along a straight line with varying speed is known as:
A) Uniform motion
B) Non-uniform motion
C) Circular motion
D) Periodic motion
Answer: B) Non-uniform motion
98. The work done on an object is positive when the force is applied in:
A) The opposite direction of motion
B) The direction of motion
C) A perpendicular direction to motion
D) No direction
Answer: B) The direction of motion
99. What is the energy possessed by a body due to its position or configuration called?
A) Kinetic energy
B) Potential energy
C) Thermal energy
D) Chemical energy
Answer: B) Potential energy
100. When an object is moving in a circular path with a constant speed, its velocity is:
A) Constant
B) Changing direction
C) Increasing
D) Zero
Answer: B) Changing direction
101. A person applies a force of 10 N to push a box, and it moves 5 meters. What is the work done?
A) 50 J
B) 5 J
C) 10 J
D) 100 J
Answer: A) 50 J
102. The force required to change the direction of an object moving in a circle is known as:
A) Gravitational force
B) Centripetal force
C) Frictional force
D) Tension
Answer: B) Centripetal force
103. Which of the following statements is true about momentum?
A) Momentum depends only on the mass of an object
B) Momentum is always zero for moving objects
C) Momentum is the product of mass and velocity
D) Momentum does not depend on the velocity of an object
Answer: C) Momentum is the product of mass and velocity
104. A person with a mass of 70 kg is standing on the surface of the Earth. What is the gravitational force acting on the person?
A) 700 N
B) 70 N
C) 9.8 N
D) 10 N
Answer: A) 700 N
105. When a rocket takes off, the action force is:
A) The rocket pushing the air downwards
B) The rocket moving upwards
C) The force of gravity on the rocket
D) The air pushing the rocket upwards
Answer: A) The rocket pushing the air downwards
106. What is the acceleration due to gravity on the surface of the Earth?
A) 10 m/s²
B) 9.8 m/s²
C) 8.9 m/s²
D) 5 m/s²
Answer: B) 9.8 m/s²
107. Which of the following is an example of a contact force?
A) Gravitational force
B) Magnetic force
C) Friction
D) Electrostatic force
Answer: C) Friction
108. What happens to the speed of an object as it moves upwards against gravity?
A) It increases
B) It decreases
C) It remains constant
D) It becomes zero
Answer: B) It decreases
109. A 10 kg object is moving with a velocity of 5 m/s. What is its momentum?
A) 10 kg·m/s
B) 50 kg·m/s
C) 5 kg·m/s
D) 15 kg·m/s
Answer: B) 50 kg·m/s
110. The change in velocity over time is called:
A) Speed
B) Acceleration
C) Momentum
D) Force
Answer: B) Acceleration
11. The momentum of an object is the product of its:
A) Mass and velocity
B) Speed and acceleration
C) Mass and acceleration
D) Weight and velocity
Answer: A) Mass and velocity
112. A 4 kg object is moving with a velocity of 3 m/s. What is its kinetic energy?
A) 12 J
B) 24 J
C) 36 J
D) 48 J
Answer: B) 24 J
113. Which of the following is a non-contact force?
A) Friction
B) Tension
C) Magnetic force
D) Normal force
Answer: C) Magnetic force
114. A car is moving with a constant velocity of 20 m/s. What will be its acceleration?
A) 0 m/s²
B) 10 m/s²
C) 5 m/s²
D) 20 m/s²
Answer: A) 0 m/s²
115. Which of the following statements is correct about the law of inertia?
A) An object in motion will continue moving with increasing speed
B) An object in motion will continue moving with constant speed unless acted upon by an external force
C) An object will remain at rest unless acted upon by an external force
D) Both B and C are correct
Answer: D) Both B and C are correct
116. A body of mass 3 kg is moving with a velocity of 4 m/s. What is its momentum?
A) 12 kg·m/s
B) 10 kg·m/s
C) 8 kg·m/s
D) 7 kg·m/s
Answer: A) 12 kg·m/s
117. The force of friction:
A) Increases the speed of an object
B) Always acts in the direction of motion
C) Opposes the motion of objects
D) Has no effect on motion
Answer: C) Opposes the motion of objects
118. The unit of work is:
A) Joule
B) Watt
C) Newton
D) Meter
Answer: A) Joule
119. The force that pulls objects toward the Earth is called:
A) Centripetal force
B) Frictional force
C) Gravitational force
D) Magnetic force
Answer: C) Gravitational force
120. The total momentum of an isolated system remains constant unless acted upon by an external force. This is known as:
A) Newton’s First Law
B) Law of Conservation of Energy
C) Law of Conservation of Momentum
D) Newton’s Second Law
Answer: C) Law of Conservation of Momentum
121. Which of the following is a scalar quantity?
A) Velocity
B) Speed
C) Displacement
D) Acceleration
Answer: B) Speed
122. What is the acceleration of an object moving in a circle at constant speed?
A) Zero
B) Positive
C) Negative
D) Constant
Answer: D) Constant
123. If a force of 10 N is applied to an object with a mass of 5 kg, what is the acceleration produced?
A) 1 m/s²
B) 2 m/s²
C) 3 m/s²
D) 5 m/s²
Answer: B) 2 m/s²
124. The work done in moving a body is zero when the force applied is:
A) In the direction of motion
B) At an angle to the direction of motion
C) Opposite to the direction of motion
D) Perpendicular to the direction of motion
Answer: D) Perpendicular to the direction of motion
125. The distance covered by an object in unit time is called:
A) Speed
B) Velocity
C) Acceleration
D) Displacement
Answer: A) Speed
126. What is the gravitational force on an object with a mass of 10 kg on the surface of the Earth?
A) 10 N
B) 100 N
C) 980 N
D) 9.8 N
Answer: B) 100 N
127. When an object is in free fall, the only force acting on it is:
A) Air resistance
B) Friction
C) Gravitational force
D) Normal force
Answer: C) Gravitational force
128. The force that resists the relative motion between two surfaces is:
A) Normal force
B) Friction
C) Gravitational force
D) Tension
Answer: B) Friction
129. A 20 N force is applied on an object. If the object moves with constant velocity, what is the net force on the object?
A) 0 N
B) 20 N
C) 10 N
D) 40 N
Answer: A) 0 N
130. The formula for calculating momentum is:
A)
B)
C)
D)
Answer: A)
131. What happens when the net force on an object is zero?
A) The object moves with increasing speed
B) The object moves with constant velocity
C) The object accelerates
D) The object comes to rest
Answer: B) The object moves with constant velocity
132. If two objects of different masses are dropped from the same height, they will:
A) Fall at different rates
B) Fall at the same rate
C) Accelerate at different speeds
D) Reach the ground at different times
Answer: B) Fall at the same rate
133. The force acting on a body of mass 10 kg produces an acceleration of 2 m/s². What is the force acting on the body?
A) 5 N
B) 10 N
C) 20 N
D) 30 N
Answer: C) 20 N
134. What does the area under a velocity-time graph represent?
A) Speed
B) Distance
C) Acceleration
D) Force
Answer: B) Distance
135. The principle that states that energy can neither be created nor destroyed is known as:
A) The law of inertia
B) Newton’s second law
C) The law of conservation of energy
D) The law of conservation of momentum
Answer: C) The law of conservation of energy
136. The total energy of an object is the sum of its:
A) Kinetic and potential energy
B) Kinetic energy only
C) Potential energy only
D) None of the above
Answer: A) Kinetic and potential energy
137. A 4 kg object is moving with a velocity of 5 m/s. What is its kinetic energy?
A) 10 J
B) 20 J
C) 50 J
D) 100 J
Answer: B) 20 J
138. Which of the following is an example of projectile motion?
A) A car moving along a straight road
B) A ball thrown at an angle
C) A person walking in a straight line
D) A satellite moving around the Earth
Answer: B) A ball thrown at an angle
139. What is the effect of increasing the force applied to an object with a fixed mass?
A) The object’s acceleration decreases
B) The object’s acceleration remains constant
C) The object’s acceleration increases
D) The object’s speed remains constant
Answer: C) The object’s acceleration increases
140. The resistance to motion between two objects is called:
A) Friction
B) Gravitational force
C) Electrostatic force
D) Magnetic force
Answer: A) Friction
141. What is the unit of force in the SI system?
A) Kilogram
B) Meter
C) Newton
D) Joule
Answer: C) Newton
142. If a force of 10 N is applied to a body of mass 2 kg, what will be the acceleration produced?
A) 5 m/s²
B) 2 m/s²
C) 10 m/s²
D) 20 m/s²
Answer: A) 5 m/s²
143. What does the slope of a speed-time graph represent?
A) Distance
B) Speed
C) Acceleration
D) Force
Answer: C) Acceleration
144. A car moving at a constant speed of 30 m/s for 10 seconds will travel a distance of:
A) 300 m
B) 600 m
C) 900 m
D) 1200 m
Answer: B) 600 m
145. The force that pulls an object toward the Earth is called:
A) Gravitational force
B) Frictional force
C) Tension
D) Electrostatic force
Answer: A) Gravitational force
146. The speed of an object is defined as:
A) The distance traveled per unit time
B) The rate of change of velocity
C) The displacement per unit time
D) The rate of change of acceleration
Answer: A) The distance traveled per unit time
147. Which of the following forces does not act on a stationary object on the surface of the Earth?
A) Gravitational force
B) Frictional force
C) Normal force
D) None of the above
Answer: D) None of the above
148. What is the formula for calculating work done?
A)
B)
C)
D)
Answer: A)
149. Which of the following is the correct SI unit of work?
A) Newton
B) Joule
C) Watt
D) Meter
Answer: B) Joule
150. A ball of mass 0.5 kg is thrown upwards with an initial velocity of 10 m/s. What will be its maximum height?
A) 5 m
B) 10 m
C) 15 m
D) 20 m
Answer: B) 10 m
1. What is meant by force? Explain with an example.
2. State Newton’s First Law of Motion. Give an example of its application in daily life.
3. What is the difference between mass and weight? How are they related?
4. What is friction? How does it affect motion? Provide examples.
5. Define momentum. How is it calculated?
6. What is the SI unit of force? How is it related to mass and acceleration?
7. Explain the concept of gravitational force. How does it affect objects on Earth?
8. What is the difference between speed and velocity? Explain with an example.
9. Define work. How is work calculated? Mention its SI unit.