Work, Energy, and Power
Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.
Work-Energy Theorem
SubtopicWork-Energy Theorem under Work, Energy, and Power for Grade 11 CBSE.
Preview questions (no answers)
- 1.
Work done is a product of force and displacement. In the context of the work-energy theorem, if work is done against a frictional force, the kinetic energy:
A.Increases
B.Decreases
C.Stays constant
D.Changes into potential energy
- 2.
A constant force is applied to a body of mass initially at rest. The plot of kinetic energy versus displacement is a:
A.Parabola
B.Straight line passing through origin
C.Circle
D.Hyperbola
- 3.
A particle of mass is accelerated from rest to speed by a force over distance . If the same force acts on mass over the same distance , the final kinetic energy of the second mass will be:
A.Same as the first
B.Double the first
C.Half the first
D.Four times the first
Download the worksheet for Work, Energy, and Power - Work-Energy Theorem to practice offline. It includes additional chapter-level practice questions.
Kinetic and Potential Energy
SubtopicKinetic and Potential Energy under Work, Energy, and Power for Grade 11 CBSE.
Preview questions (no answers)
- 1.
What is the relation between kinetic energy () and linear momentum () for a body of mass ?
A.B.C.D. - 2.
The work done by the restoring force when a spring is stretched is:
A.Positive
B.Negative
C.Zero
D.Undetermined
- 3.
If the kinetic energy of an object is zero, its linear momentum is:
A.Infinite
B.Zero
C.Positive
D.Negative
Download the worksheet for Work, Energy, and Power - Kinetic and Potential Energy to practice offline. It includes additional chapter-level practice questions.
Conservation of Mechanical Energy
SubtopicConservation of Mechanical Energy under Work, Energy, and Power for Grade 11 CBSE.
Preview questions (no answers)
- 1.
Which of the following is true for a body performing vertical circular motion at the top-most point?
A.Potential energy is minimum
B.Kinetic energy is maximum
C.Potential energy is maximum
D.Total mechanical energy is zero
- 2.
When a compressed spring is released, its potential energy is converted into:
A.Nuclear energy
B.Kinetic energy
C.Chemical energy
D.Electrical energy
- 3.
The law of conservation of mechanical energy is a specific case of:
A.Newton's First Law
B.The Law of Conservation of Momentum
C.The Law of Conservation of Energy
D.Newton's Third Law
Download the worksheet for Work, Energy, and Power - Conservation of Mechanical Energy to practice offline. It includes additional chapter-level practice questions.
Elastic and Inelastic Collisions
SubtopicElastic and Inelastic Collisions under Work, Energy, and Power for Grade 11 CBSE.
Preview questions (no answers)
- 1.
Which of the following remains constant in an isolated system during an inelastic collision?
A.Total Kinetic Energy
B.Total Linear Momentum
C.Total Mechanical Energy
D.Both Kinetic Energy and Momentum
- 2.
If the kinetic energy of a system increases after a collision (like an explosion), it is sometimes called a ____________ collision.
A.Elastic
B.Inelastic
C.Super-elastic
D.Perfect
- 3.
During a collision, the internal forces are usually ____________ the external forces.
A.Much larger than
B.Much smaller than
C.Equal to
D.Negligible compared to
Download the worksheet for Work, Energy, and Power - Elastic and Inelastic Collisions to practice offline. It includes additional chapter-level practice questions.