Motion in a Straight Line Class 11 NEET MCQs. We covered all the Motion in a Straight Line Class 11 online test for NEET MCQ PDF download in this post for free so that you can practice well for the exam.
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Motion in a Straight Line Class 11 NEET MCQs for Students
A body is imparted motion from rest to moving in a straight line. If it is then obstructed, by an opposite force, then
(a) the body may necessarily change direction
(b) the body is sure to slow down
(c) the body will necessarily continue to move in the same direction at the same speed
(d) None of these
Option b – the body is sure to slow down
Which of the following decreases in motion along a straight line with constant retardation while the body is moving away from the origin? ( Motion in a Straight Line Class MCQs )
(a) Speed
(b) Acceleration
(c) Displacement
(d) None of these
Option a – Speed
Which of the following is not an example of linear motion?
(a) An airplane moving on a straight track with increasing speed
(b) A body in a uniform circular motion
(c) a Wheel rotating at uniform speed on the road
(d) A body rolling down an inclined plane
Option b – A body in a uniform circular motion
Which of the following changes when a particle is moving with uniform velocity? ( Motion in a Straight Line Class MCQs )
(a) Speed
(b) Velocity
(c) Acceleration
(d) Position vector
Option d – Position vector
Which one out of the following statement is false?
(a) A body can have zero velocity and still be accelerated
(b) A body can have a constant velocity and still have a varying speed
(c) A body can have a constant speed and still have a varying velocity
(d) The direction of the velocity of a body can change when its acceleration is constant.
Option b – A body can have a constant velocity and still have a varying speed
What determines the nature of the path followed by the particle ( Motion in a Straight Line Class MCQs )
(a) speed
(b) velocity
(c) acceleration
(d) both (b) and (c)
Option d – both (b) and (c)
A body is thrown upwards and reaches its maximum height. At that position
(a) its acceleration is minimum
(b) its velocity is zero and its acceleration is also zero
(c) its velocity is zero but its acceleration is maximum
(d) its velocity is zero and its acceleration is the acceleration due to gravity.
Option d – its velocity is zero and its acceleration is the acceleration due to gravity.
A train is moving towards the east and a car is along the north, both at the same speed. The observed direction of the car to the passenger on the train is ( Motion in a Straight Line Class MCQs )
(a) east-north direction
(b) west-north direction
(c) south-east direction
(d) None of these
Option b – west-north direction
If a body is moving at constant speed in a circular path, its
(a) velocity is constant and its acceleration is zero
(b) velocity and acceleration are both changing directions only
(c) velocity and acceleration are both increasing
(d) velocity is constant and acceleration is changing direction
Option b – velocity and acceleration are both changing directions only
If a car is traveling north on a straight road and its brakes are applied, it will ( Motion in a Straight Line Class MCQs )
(a) have no acceleration
(b) accelerate to the south
(c) accelerate to the north
(d) accelerate either east or west
Option c – accelerate to the north
A passenger in a moving train tosses a coin. If the coin falls behind him, the train must be moving with
(a) an acceleration
(b) a deceleration
(c) a uniform speed
(d) any of the above
Option a – an acceleration
An object moves with a uniform velocity when ( Motion in a Straight Line Class MCQs )
(a) the forces acting on the object are balanced
(b) there is no external force on it
(c) Both (a) and (b)
(d) Either (a) or (b)
Option c – Both (a) and (b)
Friction forces act
(a) in the direction of force applied
(b) in the direction of the motion
(c) in the direction opposite to the direction of motion
(d) None of these
Option b – in the direction of the motion
In which of the following cases, the object does not possess acceleration or retardation when it moves in ( Motion in a Straight Line Class MCQs )
(a) an upward direction with decreasing speed
(b) a downward direction with increasing speed
(c) with a constant speed along a circular path
(d) with constant speed along the horizontal direction
Option d – with constant speed along the horizontal direction
The initial velocity of a body is 15 m/s. If it is having an acceleration of 10 m/s², then the velocity of the body after 10 seconds from the start
(a) 110 m/s
(b) 105 m/s
(c) 120 m/s
(d) 115 m/s
Option d – 115 m/s
Which of the following can be zero, when a particle is in motion for some time? ( Motion in a Straight Line Class MCQs )
(a) Distance
(b) Displacement
(c) Speed
(d) None of these
Option b – Displacement
The numerical ratio of average velocity to average speed is
(a) always less than one
(b) always equal to one
(c) always more than one
(d) equal to or less than one
Option d – equal to or less than one
Which one is the largest when the height attained by the projectile is the greatest? ( Motion in a Straight Line Class MCQs )
1. 1.255 m
2. 4.9m
3. 2.45 m
4. none of above
Option 1 – 1.255 m
One body is dropped while a second body at the same instant, is thrown downward with an initial velocity of 1 meter/sec. When will the distance between them be 18 meters
1. 16 secs.
2. 18 secs.
3. 19 secs.
4. 6 secs.
Option 2 – 18 secs
Two cars traveling towards each other on a straight road at velocities 10m/sec. and 12 m/sec respectively. When they are 150 meters apart both drivers apply their brakes and each car decelerates at 2 m/sec² until it stops. How far apart will they be when they have both come to a stop?
1. 85 metres
2. 99 metres
3. 89 metres
4. 76 metres
Option 3 – 89 metres
If e is the coefficient of restitution, then which one of the following gives the condition for perfectly elastic bodies?
1. e = 1
2. e = 0.5
3. e = 0.8
4. e=0
Option 1 – e = 1
If more than three forces are acting on the massive point object will be in equilibrium if and only if all the forces are
1. coplanar
2. collinear
3. sides of a closed polygon
4. acting in a random direction
Option 3 – sides of a closed polygon
Rocket works on the principle of conservation of
1. mass
2. energy
3. linear momentum
4. angular momentum
Option 3 – linear momentum
The muzzle velocity of a certain rifle is 330 m/sec. At the end of one second, a bullet forced straight up into the air will travel a distance of
1. (33044.9)m
2. 330m
3. (330-4.9)m
4. none of above
Option 3 – (330-4.9)m
When a carpet is beaten by a stick, the dust particles drop down according to
1. second law of motion
2. first law of motion
3. third law of motion
4. none of above
Option 2 – first law of motion
A lift is descending at a constant speed v. A passenger in the lift drops a coin. The acceleration of the coin toward the floor will be
1. g = 0
2. -g
3. u+g
4. g
Option 4 – g
Three equal weights A, B, and C of mass 2kg each are hanging on a string passing over a fixed frictionless pulley. The tension in the string connecting weights B and C is
1. 13N
2. 19.6N
3. 10.33N
4. zero
Option 1 – 13N
The reasons of the recoil of gun when fired
1) Before firing, both the bullet and gun are at rest and initial momentum of the system is zero.
2) As soon as the bullet is fired it moves forward with a large velocity.
3) In order to conserve momentum. The gun moves backward with such a velocity that the final momentum of the system is zero.
4) All the above.
Option 4 – All the above.
To stop the moving body
1) we require balanced forces
2) we require unbalanced forces
3) we require single force
4) none of these
Option 1 – we require balanced forces
Inertia of a body depends on
1) mass of a body
2) size of the body
3) material of the body
4) density of the body
Option 1 – mass of a body
Akhtar, Kiran and Rahul were riding in a motorcar that was moving with a high velocity on an expressway when an insect hit the windshield and got stuck on the wind screen. Akhtar and Kiran started pondering over the situation, then choose the correct statement
1) Kiran suggested that the insect suffered a greater change in momentum as compared to the change it momentum of the motor car.
2) Motor car was moving with a larger velocity exerted a larger force on the insect. And as a result the insect died.
3) Rahul was putting an entirely new argument that the same force and a change in their momentum take place in both vehicle and insect.
4) All are wrong.
Option 3 – Rahul was putting an entirely new argument that the same force and a change in their momentum take place in both vehicle and insect.
Two masses are in the ratio 1 : 4 then the ratio of their inertia is
1) 1 : 4
2) 4 : 1
3) 2 : 1
4) 1 : 2
Option 1 – 1 : 4
A ball is thrown vertically upwards. Then its momentum at the highest point is
1) maximum
2) minimum
3) zero
4) indefinite
Option 3 – zero
When a stone is tied to the end of the string and whirled in a circle if the string suddenly breaks then
1) The stone flies off tangentially along a straight line due to inertia of direction.
2) The stone falls down due to inertia of rest.
3) The stone flies off along a curved line due to inertia of motion.
4) None of these
Option 1 – The stone flies off tangentially along a straight line due to inertia of direction.
Action- Reaction forces act on
1) same body
2) different bodies
3) none of the bodies
4) all the above
Option 2 – different bodies
It is easier to stop a tennis ball than a cricket ball moving with the same speed because
1) tennis ball is lighter than the cricket ball
2) It has a smaller momentum
3) smaller force is required to stop the tennis ball
4) all the above
Option 4 – all the above
When a carpet is beaten with a stick, dust comes out of it because
1) It is due to the inertia of rest.
2) It is due to the inertia of motion.
3) It is due to the inertia of direction.
4) none of these
Option 1 – It is due to the inertia of rest.
It is advised to tie any luggage kept on the roof of a bus with a rope because
1) If not because tied with a rope, the luggage may fall behind the bus on the road.
2) As the bus moves ahead with acceleration, the luggage on the roof also moves along with it.
3) Due to inertia of rest or motion, the luggage slides on the roof in the forward or backward (rear) direction
4) All the above
Option 3 – Due to inertia of rest or motion, the luggage slides on the roof in the forward or backward (rear) direction
A batsman hits a cricket ball which then rolls on a level ground. After covering a short distance, the ball comes to rest. The ball slows down to stop because
1) the batsman did not hit the ball hard enough.
2) velocity is proportional to the force exerted on the ball
3) there is a force on the ball opposing the motion
4) there is no unbalanced force on the ball, so the ball would want to come to rest.
Option 3 – there is a force on the ball opposing the motion
The scientist who said that ” an object in motion will remain in same motion as long as no external force is applied ” is
1) Aristotle
2) Galileo
3) Newton
4) Dalton
Option 2 – Galileo
If the net force acting on an object is zero, then the body is said to be in the state of
1) Equilibrium
2) Motion
3) Inertia of motion
4) Uniform motion
Option 1 – Equilibrium
The inertia of a body depends on
1) Shape
2) Volume
3) Mass
4) Area
Option 3 – Mass
Newton used the word ‘ mass in motion ‘ to represent
1) Linear momentum
2) Inertia of motion
3) Third law of motion
4) Inertia at rest
Option 1 – Linear momentum
An object experience a net zero external unbalanced force, then
1) It is possible for the object to travel with a non- zero velocity
2) only non- zero external force causes a motion
3) It is possible for the object to travel with a non- zero change in velocity
4) none of these
Option 3 – It is possible for the object to travel with a non- zero change in velocity
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