NEET Physics: Work Energy and Power — MCQ Test 5

Q6. A \( 4 \, \text{kg} \) block is pushed with \( 20 \, \text{N} \) over \( 6 \, \text{m} \) on a frictionless surface, starting from rest. What is its final speed?

Q7. A \( 0.8 \, \text{kg} \) object is dropped from \( 10 \, \text{m} \). What is its kinetic energy just before impact? (Take \( g = 10 \, \text{m/s}^2 \))

Q8. A \( 3 \, \text{kg} \) ball at \( 18 \, \text{m/s} \) collides elastically with a stationary \( 9 \, \text{kg} \) ball. What is the speed of the \( 3 \, \text{kg} \) ball after collision?

Q9. A \( 0.2 \, \text{kg} \) ball is dropped from \( 12 \, \text{m} \). What is its speed just before hitting the ground? (Take \( g = 10 \, \text{m/s}^2 \))

Q10. A \( 4 \, \text{kg} \) block slides down a frictionless incline from a height of \( 3 \, \text{m} \). What is its speed at the bottom? (Take \( g = 10 \, \text{m/s}^2 \))

NEET Physics — Work Energy and Power

Free MCQ Test 5 of 18

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Medium

A spring (\( k = 900 \, \text{N/m} \)) is stretched from \( 0.05 \, \text{m} \) to \( 0.1 \, \text{m} \). What is the work done by the spring force?

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About this NEET MCQ Test

This page provides a free online MCQ test for NEET Physics preparation, focusing specifically on the chapter Work Energy and Power. It contains 10 carefully selected multiple-choice questions (MCQs) designed to test your conceptual understanding and exam readiness.

0
Easy
10
Medium
0
Hard

Key concepts covered in this specific test include Stretched, Frictionless, Starting, Emergent, Constant, and Collides.

Taking these timed MCQ tests helps you simulate the real NEET exam environment. Detailed step-by-step explanations are provided for every question to help you learn from your mistakes and strengthen your fundamentals.

Preview of Questions in this Test

Q1. A spring (\( k = 900 \, \text{N/m} \)) is stretched from \( 0.05 \, \text{m} \) to \( 0.1 \, \text{m} \). What is the work done by the spring force?

  • A. -4 J
  • B. -3.4 J
  • C. -3 J
  • D. -2.5 J

Q2. A \( 9 \, \text{kg} \) block is pushed with \( 45 \, \text{N} \) over \( 7 \, \text{m} \) on a frictionless surface, starting from rest. What is its final speed?

  • A. 8 m/s
  • B. 8.4 m/s
  • C. 8.8 m/s
  • D. 9 m/s

Q3. A \( 1.5 \, \text{kg} \) object is dropped from \( 16 \, \text{m} \). What is its speed just before hitting the ground? (Take \( g = 10 \, \text{m/s}^2 \))

  • A. 17 m/s
  • B. 17.9 m/s
  • C. 18.5 m/s
  • D. 19 m/s

Q4. A \( 50 \, \text{g} \) bullet moving at \( 400 \, \text{m/s} \) loses \( 75\% \) of its kinetic energy passing through a target. What is its emergent speed?

  • A. 180 m/s
  • B. 200 m/s
  • C. 220 m/s
  • D. 240 m/s

Q5. A \( 15 \, \text{kg} \) mass is lifted \( 6 \, \text{m} \) in \( 4 \, \text{s} \) at constant speed. What is the power? (Take \( g = 10 \, \text{m/s}^2 \))

  • A. 200 W
  • B. 225 W
  • C. 250 W
  • D. 275 W

+ 5 more questions in the actual test

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