Q1PhysicsUnit 4: Work, Energy and Power
Which one of the following statement is
false?
Physics · JEE
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Syllabus context
Part of Work, Energy and Power in JEE Main Physics.
- Work done by a constant force and a variable force, kinetic and potential energies, work-energy theorem, power
- The potential energy of a spring, conservation of mechanical energy, conservative and non-conservative forces
- Motion in a vertical circle
- Elastic and inelastic collisions in one and two dimensions
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Q2PhysicsUnit 4: Work, Energy and Power
A body of mass 5 kg has momentum of
When a force of is
applied on it for 10 sec, the change in its kinetic energy is:
Q3PhysicsUnit 4: Work, Energy and Power
The graph between the resistive force
acting on a body and the position of
the body travelling in a straight line is
shown in the figure. The mass of the
body is and initial velocity is 2 m/s.When the distance covered by the
bodyi its kinetic energy would be
Q4PhysicsUnit 4: Work, Energy and Power
object has initial velocity The total work done on the
object if its velocity changes to is :
Q5PhysicsUnit 4: Work, Energy and Power
Potential energy is classified into which
two energy?
Q6PhysicsUnit 4: Work, Energy and Power
Which of the following forms of energy
is released or absorbed in most
chemical reactions?
Q7PhysicsUnit 4: Work, Energy and Power
A boy throws a ball of mass upwards with an initial speed of The ball reaches a maximum height of
8m. The amount of energy dissipated by air drag acting on the ball during the ascent is
Q8PhysicsUnit 4: Work, Energy and Power
A bullet is fired at a target with a velocity and penetrates into it. If this bullet were fired into a
target thick with equal velocity, with what velocity would it emerge, supposing the resistance to be uniform
and the same in both the cases?
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