Force And Laws Of Motion Questions

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Force And Laws Of Motion Questions

List of force and laws of motion Questions

Question NoQuestionsClass
1Fill in the blanks:
A push or a pull on an object are types of
A. pressure
B. attraction
c. repulsion
D. force
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2When a force is applied on a rigid object
A. It changes the inter spacing between its constituent particles.
B. It changes the dimension of the object
c. It only causes motion in it
D. All
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3A force can be applied only when it is in contact with an object. Which of the following is the category of this type of force?
A. Magnetic force
B. contact force
c. Non-contact force
D. Muscular force
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4In order to apply a force on the body:
A. there has to be an interaction
B. there must be no interaction
c. sometimes there may be an interaction.
D. None of these
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5Which of the following is/are contact forces
A. Normal force
B. Tension force
c. Friction force
D. All
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6A ball of mass ( 400 g m ) is dropped from a height of 5 m. A boy on the ground hits the ball vertically upwards with a bat with an average force of ( 100 N ) so that it
attains a vertical height of 20 m. Find
the time for which the ball remains in
contact with the bat.
A. 0.12
B. 0.24
( c cdot 0.36 )
D. 0.48
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7To draw water from a well, we have to
(push, pull) the rope.
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8Fill in the blanks:
In the game of tug-of-war, both the
teams pulls each other. So
A. force is applied due to interaction.
B. force is not applied although there is interaction
c. force is applied although there is an interaction.
D. none of the above
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9The state of rest or state of motion of a
body can be changed by using
A. Pressure
B. Force
c. Heat
D. None of these
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10Fill in the blanks.
At least
must interact for a force to come into
play.
( A cdot 1 )
B. 2
( c cdot 3 )
D. 4
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11One Newton is the force which produces an acceleration of –
A ( cdot 1 m cdot s^{-2} ) on a body of mass ( 1 mathrm{gm} )
B. ( 1 mathrm{cm} . s^{-2} ) on a body of mass ( 1 mathrm{kg} )
c. ( 1 mathrm{cm} . mathrm{s}^{-2} ) on a body of mass ( 1 mathrm{gm} )
D. ( 1 m . s^{-2} ) on a body of mass ( 1 mathrm{kg} )
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12What is Force?9
13Name the forces acting on a plastic bucket containing water held above ground level in your hand. Discuss why
the forces acting on the bucket do not bring a change in its state of motion.
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14Identify the action involved when a magnet attracts a piece of iron towards
¡t.
A. Pushing
B. Pulling
c. Flying
D. Picking
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15A body, under the action of a force ( overrightarrow{boldsymbol{F}}= ) ( 6 hat{i}-8 hat{j}+10 hat{k}, ) acquires an acceleration
of ( 1 m / s^{2} . ) The mass of this body must
be:
A ( cdot 10 sqrt{2} k g )
в. ( 2 sqrt{10} k g )
c. ( 10 mathrm{kg} )
D. 20 kg
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16dentify the type of force in diagram
A. Push
B. Pull
c. No force is acting
D. Both A and B
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17State whether true or False
( 10 mathrm{mN} ) is equal to ( 10^{-3} ) dynes.
A. True
B. False
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18Give any two examples of forces in case
of push.
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19Which of the following actions can be grouped as pull:
a. Moving a loaded cart
b. Applying brakes while driving car
c. Drawing a bucket of water from a well
A. Only a
B. a and
( c . ) b and ( c )
D. a and c
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20Which of the following laws represents the qualitative measure of force?
A. Newton’s first law of motion
B. Fleming’s right hand rule
c. Fleming’s left hand rule
D. zeroth law of thermodynamics
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21A man is pushing a car but it is not moving. Which of the following is correct about the situation?
A. Force is applied.
B. Force is not appliedd
c. Force may or may not be applied.
D. None of these.
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22State whether true or false:
The Sl unit of force is newton.
A. True
B. False
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23In which following events is a pushing
force involved?
This question has multiple correct options
A. Badminton
B. Javelin
c. Archery
D. Bowling
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24Mark the correct option
A. A force can make stationary object move.
B. A force can stop a moving object
C. A force can increase the speed of a moving object
D. All
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25If two bodies do not interact
A. still a force can be applied
B. no force can be applied
C . contact force can be applied
D. non-contact force can be applied
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26Which statement defines force?
A. When a force acts on a body that is free to move, the force is the product of the mass of the body and its acceleration
B. When a force acts on a body that is free to move, the force is the rate of change of momentum of the body
C. When a force acts on a body that is free to move, the force is the work done by the force divided by the distance moved by the body
D. When a force acts on a lever and causes a moment, the force is the moment divided by the perpendicular distance of the force from the pivot
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27You can increase the amount of force
applied on a body by repeatedly:
A. pushing it
B. pulling it
c. dragging it
D. any or all of the above
9
28State whether the given statement is
true or false :

Gravity and friction are both contact forces.
A. True
B. False

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29Fill in the blank.
When a force is applied on a soft object,it changes the of
the object.
A. Shape
B. Size
c. Direction of force
D. Both a and
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30If in a system of forces acting on a rigid
body ( mathrm{R} . mathrm{G} neq 0, ) then the given system of forces is equivalent to
A. degenerate wrench
B. non-degenerate wrench
c. a couple
D. a single force
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31Identify the type of force involved when loaded cart is moved.
A. Lifting
B. Pulling
c. Running
D. Reading
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32A force is a result of:
A. interaction between two bodies
B. interaction of one body with itself
C. friction
D. all of the above
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33The pull or push acting on a body is commonly called force. State true or false.9
34A rocket has been fired upwards to launch a satellite in its orbit. Name the
two forces acting on the rocket immediately after leaving the launching pad.
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35Define 1 Newton9
36Which is not the unit of Force?
A. Pound
B. Dyne
c. Joule
D. Newton
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37This S.I. unit of force is
A. Joules
B. Newton
c. watt
D. Dyne
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38Assertion
In a ‘tug-of-war’ game, both teams exert force on the other through the rope.
Reason

The team that pulls the rope harder wins.
A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
C. Assertion is correct but Reason is incorrect
D. Both Assertion and Reason are incorrect

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39A force when applied on a non rigid object
A. Does not change the inter spacing between its constituent particles
B. Do not cause any change in its dimension
c. Do not produce motion in it
D. None
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40Identify the action involved when a north pole of magnet brought near another north pole of magnet it repels?
A. Pushing
B. Throwing
c. Pulling
D. Lifting
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41Which of the following class of forces is different from others?
A. Pulling of a cart
B. Stretching of a coiled spring
c. Kicking of a football
D. weight of the body
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42In which of the following cases, a force is not being applied?
A. A man standing behind a stationary car.
B. A car being pushed by a man.
c. A man trying to stop a sliding car.
D. A man standing on a car
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43Which of the following is/are correct
A. At least two objects must interact for a force to come into play.
B. Interaction of one object with another object results in a force between the two objects.
c. Interacting forces may be push or pull
D. All
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44Fill in the blanks:
An interaction of one object with
another object results in a between the two objects.
A. pressure
B. attraction
c. force
D. repulsion
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45A force can change:
A. shape of a body
B. size of a body
c. direction of motion
D. all the above
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46As longer the interaction between two
objects exist
A. The force remains
B. The force stops after the initial interaction
c. Both a and
D. The force remains for a specific time interval
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47Mark the correct option
A. Force can be seen
B. When an inflated balloon is pressed between the two hands,only its shape changes
C. Force is a push,pull or squeeze
D. All
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48Fill in the blanks:
Force comes into action when
A. objects interact.
B. objects do not interact
c. object move
D. None of these
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49Which of the following represents the SI unit of force?
A. Dyne
B. Gram-weight
c. Newton
D. Kilogram-weight
9
50What happens when there is no interaction between the objects?
A. Force comes in action
B. Force does not come in action
c. Force may or may not come in action
D. None of the above is correct
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51Force is
A . a push
B. a pull
c. both ( A ) and ( B )
D. none of these
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52Identify the action that can cause motion of a book placed on a table.
A. Pulling
B. Pushing
c. Lifting
D. All of the above
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53Swimming is based on Newton’s:
A. First law of motion
B. second law of motion
c. third law of motion
D. law of gravitation
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54Pulling of a cart/tram is an example of
A . Resultant force
B. Gravitational force
c. contact force
D. Action at a distance force
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55Mark the incorrect option:
A. A force always make an object to move
B. A force has both magnitude and direction
C. A force can be represented by an arrow
D. Force is a vector quantity
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56Which of the following action describes pushing by a body?
A. kicking
B. liffing
c. picking
D. opening
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57Which of the following statement is
correct?
a. The unit of force is Newton
b. The unit of force is newton
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58The law which defines force is:
A. Newton’s third law of motion
B. Newton’s first law of motion
C. Newton’s second law of motion
D. Newton’s law of gravitation
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