Work Power and Energy NEET Questions. We covered all the Work Power and Energy NEET Questions in this post for free so that you can practice well for the exam.
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MCQ on Work Power and Energy for NEET Students
The energy of 4900 J was expanded by lifting a 50 kg mass. The mass was raised to a height of
(a) 10m
(b) 98m
(c) 960 m
(d) 245000 m
Option a – 10m
When a stone is thrown upward to a certain height, it possesses
(a) potential energy
(b) kinetic energy
(c) wind energy
Option a – potential energy
The capacity of doing work is termed as
(a) pressure
(b) energy
(c) force
(d) displacement
Option b – energy
A fast wind can turn the blades of a windmill because it possesses
(a) potential energy
(b) kinetic energy
(c) chemical energy
(d) heat energy
Option a – potential energy
The potential energy of your body is minimum when
(a) you are standing
(b) you are sitting on a chair
(c) you are sitting on the ground
(d) you lie down on the ground
Option d – you lie down on the ground
A body of mass 2 kg is dropped from a height of 1 m. Its kinetic energy as it touches the ground is
(a) 19.6 N
(b) 19.6 J
(c) 19.6 kg
(d) 19.6 m
Option b – 19.6 J
A negative value of work done indicates that
(a) force and displacement are in the same direction
(b) more than one force is acting on the object
(c) displacement and force are in opposite directions
(d) Both (b) and (c)
Option d – Both (b) and (c)
Work done is zero/when
(a) force and displacement of the body are in the same direction
(b) force and displacement of the body are in the opposite direction
(c) the force acting on the body is perpendicular to the direction of the displacement of the body
(d) None of these
Option c – the force acting on the body is perpendicular to the direction of the displacement of the body
The unit of work done is
(a) Joule
(b) Newton meter
(c) Calorie
(d) Both (a) and (b)
Option d – Both (a) and (b)
The kinetic energy of a body moving with a speed of 10 m/s is 30J. If its speed becomes 30 m/s, its kinetic energy will be
(a) 10 J
(b) 90 J
(c) 180 J
(d) 270 J
Option d – 270 J
When you compress a coil spring you do work on it. The elastic potential energy
(a) increases
(b) decreases
(c) disappears
(d) remains the same
Option a – increases
No work is done when
(a) a nail is plugged into a wooden board
(b) a box is pushed along a horizontal floor
(c) there is no component of force parallel to the direction of motion
(d) there is no component of force normal to the direction of force
Option d – there is no component of force normal to the direction of force
Work done by a force can be
(a) only positive
(b) only negative
(c) both positive and negative
(d) None of these
Option b – only negative
Which is not a unit of energy?
(a) Watt’s second
(b) Kilowatt hour
(c) Watt
(d) Joule
Option c – Watt
A stone of mass 1 kg is raised through 1m height
(a) The loss of gravitational potential energy by the stone is 1 joule
(b) The gain of gravitational potential energy by the stone is 1 joule
(c) The loss of gravitational potential energy is 9.8 joule
(d) The gain of gravitational potential energy is 9.8 joule
Option d – The gain of gravitational potential energy is 9.8 joule
The scientific concept of work suggests that work is said to be done if
(a) a force acts on an object
(b) the object must be displaced
(c) energy must be consumed
(d) Both (a) and (b)
Option d – Both (a) and (b)
The kinetic energy of a body will become eight times if
(a) its mass is made four times
(b) its velocity is made four times
(c) both the mass and velocity are doubled
(d) both the mass and velocity are made four times
Option c – both the mass and velocity are doubled
For a body falling freely under gravity from a height.
(a) only the potential energy goes on increasing
(b) only the kinetic energy goes on increasing
(c) both kinetic energy as well as potential energy go on increasing
(d) the kinetic energy goes on increasing while potential energy goes on decreasing
Option d – the kinetic energy goes on increasing while potential energy goes on decreasing
Work done is defined as
(a) the product of force and displacement
(b) the distance through which the object is moved
(c) the mass of the object getting displaced
(d) the product of force and mass
Option a – the product of force and displacement
If a force F is applied on a body and it moves with velocity v, the power will be
(a) Fv
(b) F/v
(c) Fv²
(d) F/v²
Option a – Fv
We covered all the work power and energy neet questions above in this post for free so that you can practice well for the exam.
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