Work, Energy and Power – Work Done, Kinetic Energy, Work-Energy Theorem
Physics · Grade 11 · Week 15 · 25 questions
Work, Energy and Power is a foundational Grade 11 physics chapter that covers Work Done, Kinetic Energy, and Work-Energy Theorem. Mastering these ideas sharpens your problem-solving for numericals and conceptual questions alike.
What you'll practise
- Analyse Work Done
- Calculate Kinetic Energy
- State and apply Work-Energy Theorem
- Apply work, energy and power concepts to NCERT exercise and exemplar problems
All 25 questions in this Work, Energy and Power – Work Done, Kinetic Energy, Work-Energy Theorem quiz
Grade 11 Physics — Work, Energy and Power – Work Done, Kinetic Energy, Work-Energy Theorem: 25 practice questions with instant scoring and explanations.
- Work done by a force is defined as:
- The SI unit of work is:
- 1 joule equals:
- Work done by a force of 10 N moving a body through 5 m along the force is:
- Work done is zero when:
- The work-energy theorem states:
- Kinetic energy of a body of mass m moving with velocity v is:
- If momentum is doubled, kinetic energy becomes:
- Work done by gravity on a body falling freely through height h is:
- Work done by friction is always:
- Dimensions of work are:
- 1 erg equals:
- A body of mass 2 kg moves with velocity 4 m/s. Its KE is:
- If KE of a body is quadrupled, its momentum becomes:
- Work done in lifting a 5 kg mass by 2 m (g=10 m/s²) is:
- Work is a:
- Work done by centripetal force in circular motion is:
- W = F·d·cosθ. Work is maximum when θ equals:
- If a force of 20 N acts at 60° to displacement of 10 m, work done is:
- The area under a force-displacement graph represents:
- A variable force F = 2x N acts on a body. Work done from x=0 to x=3 m is:
- Relation between KE and momentum p is:
- A body at rest has KE:
- If velocity is doubled, KE becomes:
- Two bodies of equal mass have KE in ratio 1:4. Ratio of velocities is:
Question 1 of 250 correct so far