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Laws of Motion Class 11 MCQ With Answers for NEET. We covered all the Laws of Motion Class 11 MCQ With Answers for NEET in this post for free so that you can practice well for the exam.
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MCQ on Laws of Motion for NEET Students
What is the direction of impulse?
(c) Same as the final velocity
(d) Same as the initial velocity
A 20 kg object experiences a force of 10 N for 10 seconds. What is the change in momentum?
(a) 5 kg·m/s
(b) 100 kg·m/s
(c) 200 kg·m/s
(d) 1000 kg·m/s
Option b – 100 kg·m/s
A machine gun with mass M fires n bullets each second, with each bullet having mass m and speed v. What is the recoil force acting on the machine gun?
(a) Zero
(b) mvn
(c) Mvn
(d) Mvn/m
Option b – mvn
Why does a long jumper run before making a jump?
(a) To cover more distance
(b) To conserve momentum
(c) To gain energy from motion
(d) To gain momentum before jumping
Option b – To conserve momentum
Which of the following values cannot be the resultant of forces 5 N and 10 N?
(a) 12 N
(b) 8 N
(c) 4 N
(d) 5 N
Option c – 4 N
Momentum is most directly associated with which of the following?
(a) Force
(b) Impulse
(c) Power
(d) Kinetic energy
Option b – Impulse
Which group of forces could be in a state of equilibrium?
(a) 3 N, 4 N, 5 N
(b) 4 N, 5 N, 10 N
(c) 30 N, 40 N, 80 N
(d) 1 N, 3 N, 5 N
Option a – 3 N, 4 N, 5 N
Which statement regarding friction is correct?
(a) Friction can be eliminated entirely
(b) Friction cannot accelerate an object
(c) Frictional force depends on contact area
(d) Kinetic friction is always higher than rolling friction
Option d – Kinetic friction is always higher than rolling friction
Which type of friction adjusts itself to the applied force up to a limit?
(a) Static friction
(b) Limiting friction
(c) Dynamic friction
(d) Sliding friction
Option a – Static friction
Why is it easier to pull a roller than to push it?
(a) Pulling adds to the object’s weight
(b) The vertical pull component acts opposite to the weight
(c) Friction acts in reverse direction
(d) Only pulling is applicable to rollers
Option b – The vertical pull component acts opposite to the weight
Why is it hard to move a bicycle with the brakes on?
(a) Rolling friction resists road motion
(b) Sliding friction opposes road motion
(c) Rolling friction is greater than sliding friction
(d) Sliding friction exceeds rolling friction
Option d – Sliding friction exceeds rolling friction
Why can a car slip off the road while turning on a flat surface?
(a) Due to gravitational pull
(b) Because of insufficient centripetal force
(c) Because of tyre-road rolling friction
(d) Due to ground reaction
Option b – Because of insufficient centripetal force
One newton of force is enough to hold an object of what mass?
(a) 102 grams
(b) 102 kilograms
(c) 102 milligrams
(d) None of these
Option a – 102 grams
How can the impact of friction be minimized?
(a) Using smooth objects
(b) Using a flat smooth surface
(c) Applying lubricants
(d) All of the above
Option d – All of the above
What does it mean if an object is in equilibrium?
(a) It is not moving
(b) It moves at a steady speed
(c) It is falling freely
(d) More than one of the above options
Option d – More than one of the above options
When a boat travels at constant velocity, what can we infer?
(a) A net forward force is acting
(b) The vertical forces add up to zero
(c) Buoyant force is more than the object’s weight
(d) The net force acting is zero
Option d – The net force acting is zero
Two bodies A and B have masses of 6 kg and 34 kg respectively. What can be said about their inertia?
(a) A has more inertia than B
(b) B has more inertia than A
(c) Both have the same inertia
(d) Neither exhibits inertia
Option b – B has more inertia than A
When walking on a rough surface, what helps a person move forward?
(a) Friction from the ground propels him
(b) The person’s force on the ground moves him
(c) The floor’s reaction to the person’s force moves him
(d) None of the above
Option c – The floor’s reaction to the person’s force moves him
Why is Earth not considered an inertial frame of reference?
(a) Because it revolves around the sun
(b) Because it spins on its axis
(c) Because Newton’s laws still apply
(d) Both (a) and (b)
Option d – Both (a) and (b)
Why are fragile items like china wares packed in straw paper?
(a) To apply the concept of impulse
(b) To reduce momentum
(c) To minimize acceleration
(d) To avoid force damage
Option a – To apply the concept of impulse
Which statement is true about action and reaction forces?
(a) They are always of the same kind
(b) They differ in nature
(c) They can be of different kinds
(d) They are not necessarily equal in size
Option a – They are always of the same kind
If an object’s momentum remains unchanged, what else stays constant?
(a) Velocity
(b) Force
(c) Acceleration
(d) All of the above
Option b – Force
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