Describing Motion Around Us Class 9 Worksheet Answers PDF

This Class 9 Science Chapter 4 Describing Motion Practice Test is a full-length, board-pattern test with complete step-by-step answer key, prepared as per the new NCERT syllabus Session 2026-27. It covers distance, displacement, speed, velocity, acceleration, equations of motion, velocity-time graphs and uniform circular motion.

📋 Paper Pattern

• Total Questions: 20 | Sections: A to E
• Section A: 10 MCQs + Assertion-Reason questions
• Section B: Short Answer questions (2 marks each)
• Section C: Numerical problems (3 marks each)
• Section D: Long Answer question (5 marks)
• Section E: Case Study Based questions (4 marks each)

📊 Topics Covered in This Test

• Distance and Displacement — numerical problems using Pythagoras theorem, when displacement is zero
• Speed and Velocity — average speed vs average velocity, unit conversions (km/h to m/s)
• Acceleration — calculating average acceleration, SI units, uniform vs non-uniform motion
• Equations of Motion — v = u + at, s = ut + ½at², v² = u² + 2as with applications
• Velocity-Time Graphs — reading graphs, finding acceleration from slope, displacement from area under graph
• Vertical Motion — ball thrown upward, maximum height, time of flight, symmetry of motion
• Braking Distance Case Study — reaction distance, stopping distance, road safety calculations
• Uniform Circular Motion Case Study — why UCM is accelerated motion, direction of velocity, merry-go-round problem

❓ Sample Important Questions from This Test

• Q. A cyclist travels 400 m south and then 300 m east. Find the total distance travelled and the magnitude of displacement.
• Q. The velocity of a train increases from 72 km/h to 90 km/h in 5 seconds. Calculate the average acceleration in m/s².
• Q. A ball is thrown vertically upward with initial velocity 49 m/s. Find the time to reach maximum height, the maximum height and the total time of flight.
• Q. An athlete runs along a circular track of radius 70 m and completes one revolution in 44 seconds. Find the average speed and average velocity.
• Q. A bus travelling at 36 km/h sees a road sign 30 m ahead. With reaction time 0.5 s and deceleration 2.5 m/s², will the bus stop before the sign?

✅ What Makes This Test Special

• Complete Answer Key included — every MCQ with concept explanation, every numerical with step-by-step working
• Case Study questions on Road Safety (braking distance) and Uniform Circular Motion — exactly the new CBSE competency-based format
• Assertion-Reason questions in official CBSE pattern
• Based on the new NCERT Class 9 Science syllabus 2026-27 — Chapter 4: Describing Motion Around Us

📝 Key Terms

• Displacement — shortest distance between initial and final position
• Average Velocity — total displacement divided by total time
• Acceleration — rate of change of velocity (m/s²)
• Uniform Circular Motion — constant speed but continuously changing velocity direction
• Braking Distance — distance travelled after brakes are applied before stopping

This practice test has been prepared by Sumeet Sahu at Unique Study Point, Indore, strictly following the latest NCERT Class 9 Science syllabus for Session 2026-27. Download the free PDF — attempt the test in 90 minutes, then check your answers with the detailed solution key. For more Class 9 Science practice tests, notes and MCQs, explore the related materials below.

📊 Also download the Describing Motion Around Us Class 9 PPT (85 slides) for complete chapter revision.