What Is the Relationship Between Work, Energy, and Power?
This page offers a comprehensive set of Work Energy And Power MCQ designed for NEET aspirants. Covering all key exam concepts, this practice helps students boost accuracy, speed, and confidence for Physics. Tackle these MCQs to master formulas, logic, and applications for higher NEET scores.
What are Work Energy And Power MCQs?
Work Energy and Power MCQ are objective questions testing understanding of force, motion, energy forms, work, and conservation principles. These MCQs reflect NEET Physics patterns, focusing on calculations and logic around kinetic energy, potential energy, work done, and power output.
Why Practice NEET MCQs on Work Energy And Power?
Consistent practice of chapterwise NEET MCQs develops precision, formula retention, and application skills. Attempting MCQs on Work Energy And Power trains aspirants to solve NEET-level questions fast, avoid negative marking, and identify strengths or revision needs before the final exam.
Work Energy And Power MCQ – NEET Practice Questions
-
Work is done when:
A. There is force but no displacement
B. There is displacement but no force
C. Force and displacement are perpendicular
D. A force causes a displacement in its direction
-
If the velocity of a body is doubled, its kinetic energy becomes:
A. Double
B. Four times
C. Half
D. Remains same
-
The SI unit of power is:
A. Joule
B. Watt
C. Newton
D. Coulomb
-
A 1 kg stone is raised to a height of 10 m (g = 10 m/s²). The potential energy gained is:
A. 100 J
B. 10 J
C. 1000 J
D. 1 J
-
Work done by gravity when lifting a ball upwards is:
A. Positive
B. Negative
C. Zero
D. Infinite
-
If a 50 kg mass moves at 2 m/s, its kinetic energy is:
A. 100 J
B. 200 J
C. 150 J
D. 80 J
-
Which of the following has only potential energy?
A. A stone at the top of a hill
B. A falling stone
C. A running athlete
D. Moving car
-
Work done is maximum when the angle between force and displacement is:
A. 0°
B. 45°
C. 90°
D. 180°
-
The law of conservation of energy states that:
A. Energy can be created
B. Energy is always lost
C. Energy transforms but total remains constant
D. Energy decreases over time
-
A machine delivers 400 J of work in 8 seconds. Its power output is:
A. 200 W
B. 50 W
C. 100 W
D. 40 W
-
When a body falls freely under gravity, its potential energy:
A. Increases
B. Decreases
C. Remains unchanged
D. Becomes zero instantly
-
Which of these devices converts chemical energy to electrical energy?
A. Motor
B. Battery
C. Generator
D. Dynamo
-
What is the work done in moving a 5 C charge across a potential difference of 12 V?
A. 10 J
B. 60 J
C. 17 J
D. 25 J
-
A 2 kg object is thrown up with speed 10 m/s. Its maximum potential energy will be:
A. 50 J
B. 100 J
C. 200 J
D. 20 J
-
The kinetic energy of a particle of mass m and velocity v is:
A. mv
B. m/v
C. (1/2)mv²
D. m+v
-
If the velocity of a body is halved, kinetic energy becomes:
A. Same
B. Double
C. Quarter
D. Half
-
Which form of energy increases in a stretched rubber band?
A. Kinetic
B. Chemical
C. Elastic potential
D. Nuclear
-
Power is defined as:
A. Work per force
B. Work per displacement
C. Work per time
D. Work per mass
-
If a body does 1 Joule work in 1 second, its power is:
A. 1 W
B. 1 J
C. 1 N
D. 1 Nm
-
Water stored at height possesses:
A. Kinetic energy
B. Potential energy
C. Thermal energy
D. Chemical energy
MCQ Answer Key
| Q.No. | Answer | Explanation |
|---|---|---|
| 1 | D | Work is done when force causes displacement in its own direction. |
| 2 | B | Kinetic energy ∝ (velocity)²; doubling v increases KE four times. |
| 3 | B | SI unit of power is watt (W). |
| 4 | A | PE = mgh = 1×10×10 = 100 J. |
| 5 | B | Gravity does negative work when lifting against it. |
| 6 | A | KE = (1/2)mv² = 0.5×50×4 = 100 J. |
| 7 | A | At the hilltop, only potential energy (no motion) is present. |
| 8 | A | Work is max when force and displacement are in same direction (0°). |
| 9 | C | Energy changes form, but the total remains constant. |
| 10 | B | Power = Work/time = 400/8 = 50 W. |
| 11 | B | Potential energy decreases as body falls under gravity. |
| 12 | B | Batteries convert chemical energy into electrical energy. |
| 13 | B | Work = charge × potential = 5×12 = 60 J. |
| 14 | A | Max PE at top = initial KE = (1/2)mv² = (1/2)×2×100 = 100 J. |
| 15 | C | Formula for kinetic energy is (1/2)mv². |
| 16 | C | KE ∝ v²; halving v makes KE one-fourth. |
| 17 | C | Stretched rubber has increased elastic potential energy. |
| 18 | C | Power = work done divided by time. |
| 19 | A | 1 J / 1 s = 1 watt is the definition. |
| 20 | B | Elevated water stores gravitational potential energy. |
Explanations clarify reasoning behind each answer and help students understand important NEET concepts.
How These MCQs Help Boost Your NEET Physics Scores
Practicing Work Energy And Power MCQ builds familiarity with NEET-style problems, fast recall of key formulas, and error-free calculations. This improves your NEET Physics accuracy and confidence, ensuring better ranks. For more chapterwise tests, use curated resources like NEET Work Energy And Power Important Questions or revision notes by Vedantu.
Next Steps: Practice and Mastery
- Revisit your mistakes to avoid similar errors in the NEET exam.
- Revise theory using Work Energy And Power Revision Notes.
- Try full-length Physics tests from Vedantu for realistic NEET exam simulation.
Practicing Work Energy And Power MCQ sharpens your NEET Physics concepts and boosts scoring potential. Repeat such NEET-styled quizzes regularly, learn from instant feedback, and use Vedantu’s resources for targeted improvement in upcoming Physics tests and the main exam.
FAQs on Practice Work Energy And Power MCQ with Answers
1. What are NEET MCQs on work, energy, and power?
NEET MCQs on work, energy, and power are practice questions based on the NEET Physics syllabus chapter Work, Energy and Power, following the exam's multiple-choice question format. These questions assess understanding of key concepts such as:
- Definition and calculation of work, energy, and types of power
- Unit conversions (SI & CGS)
- Kinetic and potential energy problems
- Conservation laws and their applications
- Real-exam marking scheme (with negative marking)
2. How to prepare for work, energy, and power NEET test?
Effective preparation for the Work, Energy, and Power NEET test involves targeted practice and revision. Key strategies include:
- Master all core formulas and definitions for work, energy, and power
- Practice MCQs with answer keys to identify weak areas
- Solve previous year NEET MCQs on this chapter
- Use timed online mock tests to improve speed and accuracy
- Review detailed solutions for any mistakes
- Make quick summary notes for revision
3. What is the difficulty of NEET work, energy and power questions?
NEET work, energy, and power questions range from moderate to high difficulty.
- MCQs often test fundamental principles and formula application
- Conceptual and calculation-based questions are both common
- Questions match the NEET syllabus and real-exam pattern
- Practice tests help students handle time pressure and tricky options
- Regular practice reveals frequent mistakes and learning gaps
4. How many MCQs does the Work, Energy and Power NEET mock test have?
The NEET Physics Work, Energy and Power mock test typically contains 15 MCQs, designed to cover all subtopics of the chapter. This aligns with:
- The NEET exam chapterwise pattern
- Mock test duration of 20 minutes
- Each correct answer awarding 4 marks; -1 for every incorrect answer
5. Are answer keys and solutions provided instantly?
Yes, instant answer keys and detailed solutions are provided after test submission.
- View correct/incorrect responses for every MCQ
- Study stepwise explanations and formula usage
- Understand logic and key concepts for each question
6. How does negative marking work in this NEET mock test?
Negative marking in NEET mock tests follows the actual NEET exam pattern:
- +4 marks for every correct answer
- -1 mark for each incorrect answer
- Zero marks for unattempted questions
7. Can I attempt this mock test multiple times?
Yes, students may attempt the NEET Physics Work, Energy and Power mock test multiple times to improve accuracy and exam confidence.
- Each attempt provides new analytics and feedback
- Repeated practice helps identify recurring errors
- Use the answer keys and solutions for targeted revision after every session
8. What topics are covered in NEET Work Energy and Power MCQs?
Key topics in Work, Energy, and Power NEET MCQs include:
- Definition and units of work, energy, and power
- Kinetic and potential energy
- Law of conservation of energy
- Work-energy theorem
- Different types of power
- SI/CGS conversions and application-based problems
9. How to check answers and explanations after the mock test?
After submitting the NEET Physics mock test, you can:
- Instantly view answer keys for each question
- Read step-wise detailed solutions and logic used
- Review common mistakes and learn correct approaches
- Access analytics for chapters or topics needing more practice
10. What are the best tips for scoring high in Work, Energy and Power NEET questions?
Top tips for excelling in Work, Energy, and Power for NEET:
- Revise all key formulas and laws
- Practice with chapterwise mock tests and previous year MCQs
- Focus on unit conversions and avoiding calculation errors
- Read answers and explanations to strengthen concepts
- Manage time carefully and avoid negative marking penalties
- Create summary notes for quick revision
