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Physics

Work, Energy and Power

The chapter defines work, kinetic and potential energy, the work-energy theorem, power, and collisions. Numericals dominate in NEET: energy conservation on tracks and springs, power output, and elastic or inelastic collision problems.

Exam rules change between cycles. Confirm dates, syllabus and pattern against NTA's official site. We are not NTA.

Weightage: what the paper actually did

Work, Energy and Power carried 1 question in the NEET 2026 paper. One paper is a data point, not a destiny: NTA moves weight between chapters every cycle, which is why the weightage tables deserve care. The stable facts are the paper's shape: 180 questions, 720 marks, +4 right, −1 wrong.

Sample PYQs from this chapter

Real questions NTA asked from Work, Energy and Power, with the answer and the working. Try before you peek.

Question 1 · NEET 2026

The power of a crane, which lifts a mass of 1000 kg to a height of 20 m in 10 s is: (g=9.8 m/s2g = 9.8\ \text{m/s}^2)
  1. A.19.6 W
  2. B.39.2 W
  3. C.19.6 kW
  4. D.39.2 kW
Answer and explanation

Answer: C

The useful power is work done against gravity divided by time, P=mghtP = \dfrac{mgh}{t}. Substituting, P=1000×9.8×2010=19600 W=19.6 kWP = \dfrac{1000 \times 9.8 \times 20}{10} = 19600\ \text{W} = 19.6\ \text{kW} (option C). The 19.6 W answer drops a factor of 1000, and the 39.2 values double-count g or the height.

How to practise Work, Energy and Power

Chapter by chapter, against real past-paper questions, on a screen: NEET is computer based from 2027. Read the chapter once, then attempt its PYQs until your accuracy stops climbing, and let the wrong answers tell you which lines to reread. If the chapter keeps refusing to stick, that has its own guide. There is also a free 12-question mock on the exam screen.

Nearby Physics chapters

Questions

How many questions did Work, Energy and Power have in NEET 2026?

Work, Energy and Power carried 1 question in the NEET 2026 paper. Weightage shifts between cycles, so treat it as a probability, not a promise.

Where can I practise Work, Energy and Power PYQs for NEET?

In the BrainIt app, free until the 2027 exam: its bank holds 50,000 past NTA questions tagged to all 83 chapters, including this one, with accuracy tracked per chapter. A sample question from this chapter is on this page.

Is Work, Energy and Power important for NEET 2027?

It is part of the Physics syllabus the paper draws from, and NEET 2027 is computer based, so practise it on a screen. Your own accuracy in the chapter matters more than any weightage table: a heavy chapter you already score well on needs less time than a light one you keep missing.

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