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PHYSICS MCQs

Total Questions : 3767 | Page 374 of 377 pages
Question 3731. The force exerted on an object is 200 N and its mass is 100 kg. Find the acceleration of the object.
  1.    2 s
  2.    2 m/s
  3.    2 m/sq.s
  4.    2 m
 Discuss Question
Answer: Option C. -> 2 m/sq.s
Question 3732. Energy per unit volume is dimensionally equal to
  1.    Force
  2.    Density
  3.    Pressure
  4.    Work
 Discuss Question
Answer: Option C. -> Pressure
Question 3733. A man standing close to the platform at a railway station experiences a pulling force towards a fast moving train because of ________ .
  1.    Pressure difference due to fast moving air in between
  2.    The centripetal force
  3.    Illusion of the man
  4.    Gravitational force between train and man
 Discuss Question
Answer: Option A. -> Pressure difference due to fast moving air in between
Question 3734. Water boils at a lower temperature on the hills because
  1.    There is a decrease in air pressure on the hills
  2.    It is cold on the hills
  3.    There is less oxygen
  4.    There is less carbon dioxide on the hills
 Discuss Question
Answer: Option A. -> There is a decrease in air pressure on the hills
Question 3735. The force exerted by a magnet is an example of ________
  1.    Non-contact force
  2.    Muscular force
  3.    Contact force
  4.    Electrostatic force
 Discuss Question
Answer: Option A. -> Non-contact force
Question 3736. To open a door easily, the handle should be fixed
  1.    Near the hinges
  2.    Away from mid-point opposite to hinges
  3.    In the middle
  4.    None of these
 Discuss Question
Answer: Option D. -> None of these
Question 3737. Balanced Force
  1.    The net force of an object does not equal zero which results in a change in the motion of the object.
  2.    The net force on an object is zero and the object’s motion does not change.
  3.    The sum of all the forces acting on an object,
  4.    The sum of the the forces stored in energy.
 Discuss Question
Answer: Option B. -> The net force on an object is zero and the object’s motion does not change.
Question 3738. What is the definition of magnitude?
  1.    To continue moving.
  2.    The strength of an object or event.
  3.    Energy in motion.
  4.    The sum of all the forces exerted on an object
 Discuss Question
Answer: Option B. -> The strength of an object or event.
Question 3739. Newton's Second Law states
  1.    that an object in motion, stays in motion; an object at rest stays at rest. 
  2.    For every action there is an equal and opposite reaction.
  3.    that acceleration occurs when a force acts upon an object. 
  4.    none of the above
 Discuss Question
Answer: Option C. -> that acceleration occurs when a force acts upon an object. 
Question 3740. What happens when two forces act in the same direction?
  1.    They cancel each other out.
  2.    The stronger one prevails.
  3.    Their strengths are added.
  4.    Their sum divided by two is the total force.
 Discuss Question
Answer: Option C. -> Their strengths are added.

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