Class 9 Science Chapter 7: Work, Energy, and Simple Machines — Important Questions & Mock Tests
Practice Work, Energy, and Simple Machines topic-wise important questions on Kinetic Energy and Work, MCQs and 1, 2, 3 and 5 mark questions for CBSE revision.
60 Questions 22 Topics MCQs: 20 1 Mark: 10 2 Mark: 10 3 Mark: 10 5 Mark: 10
Topic-wise important and practice questions
Review question distribution across chapter topics for MCQs, 1 Mark questions, 2 Mark questions, 3 Mark questions, 5 Mark questions.
| Topic | MCQ | 1 Mark | 2 Mark | 3 Mark | 5 Mark | Total |
|---|---|---|---|---|---|---|
| Kinetic Energy | 1 | 2 | 2 | 3 | 2 | 10 |
| Work | 1 | 4 | 3 | 1 | 0 | 9 |
| Power | 1 | 1 | 1 | 1 | 1 | 5 |
| Gravitational Potential Energy | 1 | 1 | 1 | 0 | 1 | 4 |
| Inclined Plane | 1 | 0 | 1 | 1 | 1 | 4 |
| Levers and Mechanical Advantage | 0 | 1 | 0 | 1 | 2 | 4 |
| Fixed Pulley | 1 | 0 | 0 | 1 | 1 | 3 |
| Work-Energy Theorem | 1 | 0 | 1 | 0 | 1 | 3 |
| Force-Displacement Graph | 1 | 0 | 0 | 1 | 0 | 2 |
| Negative Work | 1 | 0 | 0 | 0 | 1 | 2 |
| Positive Work | 1 | 0 | 1 | 0 | 0 | 2 |
| Zero Work | 1 | 0 | 0 | 1 | 0 | 2 |
| Energy Transformation in a Pendulum | 1 | 0 | 0 | 0 | 0 | 1 |
| Kinetic Energy and Velocity | 1 | 0 | 0 | 0 | 0 | 1 |
| Kinetic Energy Formula | 1 | 0 | 0 | 0 | 0 | 1 |
| Mechanical Advantage | 0 | 1 | 0 | 0 | 0 | 1 |
| Mechanical Advantage of a Lever | 1 | 0 | 0 | 0 | 0 | 1 |
| Potential Energy Calculation | 1 | 0 | 0 | 0 | 0 | 1 |
| Power Calculation | 1 | 0 | 0 | 0 | 0 | 1 |
| SI Unit of Power | 1 | 0 | 0 | 0 | 0 | 1 |
| SI Unit of Work and Energy | 1 | 0 | 0 | 0 | 0 | 1 |
| Zero Work for Perpendicular Force | 1 | 0 | 0 | 0 | 0 | 1 |