Practice THE WORK-ENERGY THEOREM FOR A VARIABLE FORCE - 5.6 | 5. WORK, ENERGY AND POWER | CBSE 11 Physics - Part 1
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5.6 - THE WORK-ENERGY THEOREM FOR A VARIABLE FORCE

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What does the work-energy theorem state?

💡 Hint: Think about the relationship between work and energy changes.

Question 2

Easy

Define variable force.

💡 Hint: Consider forces like gravity that can vary with position.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What is the work-energy theorem?

  • a) Work done is independent of force.
  • b) The work done on a body is the change in its potential energy.
  • c) The work done on a body is equal to the change in its kinetic energy.
  • d) The work is zero for conservative forces.

💡 Hint: Think about how work relates to energy changes.

Question 2

True or False: The work done on an object by a constant force can be measured without knowing the distance moved.

  • True
  • False

💡 Hint: Recall the formula for work done.

Solve and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

A variable force is defined as F(x) = 2 + 4x - x^2. Calculate the work done by this force as a particle moves from x = 0 to x = 3.

💡 Hint: Solve the integral carefully and compute the limits.

Question 2

A truck starts from rest and travels 100 m while experiencing a constant variable acceleration. Calculate the net work done on the truck if its final speed is 20 m/s.

💡 Hint: You need the mass of the truck to proceed with calculations.

Challenge and get performance evaluation