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Motion in a Straight Line Class 11 MCQs. We covered all the Motion in a Straight Line Class 11 MCQs in this post for free so that you can practice well for the exam.
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MCQ on Motion in a Straight Line for Students
If no net force acts on a body, then the velocity of the body cannot change. This law is known as
(a) Newton’s First Law of Motion
(b) Newton’s Second Law of Motion
(c) Newton’s Third Law of Motion
(d) None of the above
Option a – Newton’s First Law of Motion
The product of the mass of a body and the acceleration produced equals the ……. acting on it.
(a) force
(b) impulse
(c) torque
(d) kinetic energy
Option a – force
The definition of force can be started from
(a) Newton’s First Law of Motion
(b) Newton’s Second Law of Motion
(c) Newton’s Third Law of Motion
(d) Newton’s Law of Gravitation
Option b – Newton’s Second Law of Motion
Two bodies A and B are moving with equal velocities. The mass of B is doubled that of A. In this context, which one of the following statements is correct?
(a) The momentum of B will be double that of A.
(b) Momentum of A will be double that of B.
(c) Momentum of B will be four times that of A.
(d) Momentum of both A and B will be equal.
Option a – The momentum of B will be double that of A
Which scientist gave ‘Laws of motion’?
(a) Galileo
(b) Newton
(c) Einstein
(d) Boyle
Option b – Newton
Newton’s first law of motion is known as
(a) Gravity
(b) the Law of Inertia
(c) the Law of Conservation of Momentum
(d) Vertical Motion
Option b – the Law of Inertia
According to the Second Law of Motion, for a given force, acceleration is inversely proportional to the …….. of an object.
(a) density
(b) volume
(c) force
(d) mass
Option d – mass
The Second Law of Motion states that
(a) Every object will move in a uniform motion when a net force is applied.
(b) The rate of change of momentum of an object is proportional to the net force applied on the object in the direction of the net force.
(c) Every object will remain at rest or in a state of uniform motion unless compelled to change its state by the action of a net force.
(d) The rate of change of speed of a body will change with the net force applied.
Option b – The rate of change of momentum of an object is proportional to the net force applied on the object in the direction of the net force
A body of mass 4 kg accelerates from 15 m/s to 25 m/s in 5 seconds due to the application of a force on it. Calculate the magnitude of this force (in N).
(a) 32
(b) 8
(c) 16
(d) 64
Option b – 8
Two persons are holding a rope of negligible mass horizontally. A 20 kg mass is attached to the rope at the mid-point, as a result, the rope deviates from the horizontal direction. The tension required to completely straighten the rope is (g = 10 m/s²)
(a) 200 N
(b) 20 N
(c) 10 N
(d) infinitely large
Option a – 200 N
The rate of change of momentum of a body is equal to the resultant
(a) energy
(b) power
(c) force
(d) impulse
Option c – force
Find the acceleration (in m/s) produced in a body of mass 3 kg when a force of 6 N is applied to it.
(a) 18
(b) 4
(c) 2
(d) 36
Option c – 2
Which of the following quantity is a measure of inertia?
(a) Velocity
(b) Acceleration
(c) Mass
(d) Weight
Option c – Mass
Which one of the following has maximum inertia?
(a) An atom
(b) A molecule
(c) A one-rupee coin
(d) A cricket ball
Option d – A cricket ball
When a running car stops suddenly, the passengers tend to lean forward because of
(a) centrifugal force
(b) inertia of rest
(c) inertia of motion
(d) gravitational force
Option c – inertia of motion
Which of the following is an example of inertia of rest?
(a) When a hanging carpet is beaten with a stick, dust particles are cleared.
(b) Mud flying tangentially to the type of car.
(c) An athlete runs some distance before taking a long jump.
(d) None of the above
Option a – When a hanging carpet is beaten with a stick, dust particles are cleared
Momentum is measured as the product of
(a) mass and acceleration
(b) mass and acceleration
(c) mass and velocity
(d) mass and inertia
Option c – mass and velocity
When a ball bounces off the ground, which of the following changes suddenly? (Assume no loss of energy to the floor)
(a) Its speed
(b) Its Momentum
(c) Its kinetic energy
(d) Its potential energy
Option b – Its Momentum
A body of mass 8 kg is moving with a velocity of 4 m/s. Find its momentum.
(a) 2
(b) 64
(c) 32
(d) 4
Option c – 32
Force is a push
(a) that can change the position and direction of motion of a body
(b) that can change the position and cannot change the direction of motion of a body.
(c) which can change the shape of the body only.
(d) None of the above
Option a – that can change the position and direction of motion of a body
Which one of the following is not a contact force?
(a) Push force
(b) Gravitational force
(c) Frictional force
(d) Strain force
Option b – Gravitational force
The electrostatic force is
(a) the force exerted by a charged body.
(b) the force exerted by gravity.
(c) example of a contact force.
(d) None of the above
Option a – the force exerted by a charged body
The nuclear force is
(a) a very short-range attractive force.
(b) the strongest force in nature.
(c) noncentral forces.
(d) All of the above
Option d – All of the above
The tendency of undisturbed objects to stay at rest or to keep moving with the same velocity is called
(a) velocity
(b) force
(c) momentum
(d) inertia
Option d – inertia
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