NEET Physics: Work Energy and Power — MCQ Test 7

Q6. A force \( \mathbf{F} = 6\hat{\mathbf{i}} + 8\hat{\mathbf{j}} \, \text{N} \) acts on a particle moving along \( \mathbf{d} = 3\hat{\mathbf{i}} - 2\hat{\mathbf{j}} \, \text{m} \). What is the work done?

Q7. In a completely inelastic collision, a \( 3 \, \text{kg} \) mass moving at \( 6 \, \text{m/s} \) collides with a stationary \( 2 \, \text{kg} \) mass. What is the final velocity?

Q8. A neutron (\( 1 \, \text{u} \)) at \( 8 \times 10^6 \, \text{m/s} \) collides elastically with a carbon (\( 12 \, \text{u} \)). What fraction of its kinetic energy is transferred?

Q9. A force \( F = 15x^2 \, \text{N} \) acts from \( x = 0 \) to \( x = 2 \, \text{m} \). What is the work done?

Q10. A force \( F = 3x^2 \, \text{N} \) acts on a particle from \( x = 0 \) to \( x = 2 \, \text{m} \). What is the work done?

NEET Physics — Work Energy and Power

Free MCQ Test 7 of 18

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Medium

A \( 0.5 \, \text{kg} \) pendulum bob is given a speed at the bottom to complete a \( 1 \, \text{m} \) vertical circle. What is the speed at the bottom? (Take \( g = 10 \, \text{m/s}^2 \))

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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
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Hard

Key concepts covered in this specific test include Pendulum, Complete, Vertical, Collides, Elastically, and Stationary.

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 \( 0.5 \, \text{kg} \) pendulum bob is given a speed at the bottom to complete a \( 1 \, \text{m} \) vertical circle. What is the speed at the bottom? (Take \( g = 10 \, \text{m/s}^2 \))

  • A. 6.5 m/s
  • B. 7 m/s
  • C. 7.5 m/s
  • D. 8 m/s

Q2. A \( 2.5 \, \text{kg} \) ball at \( 16 \, \text{m/s} \) collides elastically with a stationary \( 7.5 \, \text{kg} \) ball. What is the speed of the \( 7.5 \, \text{kg} \) ball after collision?

  • A. 7 m/s
  • B. 8 m/s
  • C. 9 m/s
  • D. 10 m/s

Q3. A \( 8 \, \text{kg} \) block is pushed with \( 40 \, \text{N} \) over \( 6 \, \text{m} \) on a frictionless surface, starting from \( 2 \, \text{m/s} \). What is its final speed?

  • A. 7 m/s
  • B. 8 m/s
  • C. 9 m/s
  • D. 10 m/s

Q4. A \( 3 \, \text{kg} \) block is pushed with a force of \( 15 \, \text{N} \) over \( 4 \, \text{m} \) on a frictionless horizontal surface. If it starts with a speed of \( 2 \, \text{m/s} \), what is its final kinetic energy?

  • A. 60 J
  • B. 66 J
  • C. 72 J
  • D. 78 J

Q5. A neutron (\( 1 \, \text{u} \)) at \( 3 \times 10^6 \, \text{m/s} \) collides elastically with a deuterium (\( 2 \, \text{u} \)). What fraction of its kinetic energy is retained?

  • A. 0.1
  • B. 0.11
  • C. 0.15
  • D. 0.2

+ 5 more questions in the actual test

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