CBSE Class 9 Worksheet Chapter 1 Motion

Table of Contents

CBSE Class 9 Worksheet Chapter 1 Motion: Class 9 is super important for students because it sets the stage for the big Class 10 board exams. The subjects are tougher, so it’s crucial to understand them well for good grades. In Science, Chapter 8 covers motion, which involves concepts like velocity and distance. To ace it, students need thorough preparation.

For Class 9 Science Chapter 8, having access to a worksheet is a lifesaver during exams. We offer precisely crafted CBSE Class 9 Worksheet Chapter 1 Motion based on previous years’ papers. Our expert team ensures top-notch study materials for effective practice.

Motion Class 9

Motion in physics, a key focus of Classical Mechanics, is crucial to understand. Consider this: everything in the universe is in constant motion. Even when you feel still, you’re actually moving along with Earth as it spins on its axis and orbits the sun. Motion refers to any change in an object’s position over time.

Motion in Class 9 physics refers to how an object moves compared to its surroundings over a certain period. When we talk about the movement of something with weight, we often use terms like distance, displacement, speed, velocity, time, and acceleration to describe it. For detailed understanding we have curated a separate CBSE Notes for class 9 Motion covering key concepts, definitions, and examples to help in comprehension and revision.

Also Check: CBSE Worksheets for Class 9 Science Physics

Types of Motion

Understanding how objects move depends on the forces they experience. Here are different types of motion explained:

Translational Motion: This is when an object moves in any direction along a path.
Rotational Motion: This occurs when an object moves in a circular path around a fixed point.
Linear Motion: It’s like translational motion but happens in a straight line along one dimension.
Periodic Motion: This motion repeats itself after specific time intervals.
Simple Harmonic Motion: Think of a pendulum swinging back and forth. The force opposes its motion and is related to how far it’s moved.
Projectile Motion: This motion involves both horizontal and vertical movement.
Oscillatory Motion: This type repeats itself within a certain time frame. When it’s mechanical, it’s called vibration.

Click Here: Extra Questions – Class 9 Science Chapter 8 Motion

CBSE Class 9 Physics Motion Worksheet – Sample

Multiple Choice Questions

1. If an object’s displacement depends on the square of time, what kind of motion does it exhibit?
(a) Uniform velocity
(b) Uniform acceleration
(c) Increasing acceleration
(d) Decreasing acceleration

2. What motion does a body exhibit if its distance-time graph aligns with the time axis?
(a) Uniform motion
(b) At rest
(c) Uniformly accelerated motion
(d) Zig-zag motion

3. Based on the v – t graph provided, what can be concluded about the object’s motion?
(a) Uniform motion
(b) At rest
(c) Non-uniform motion
(d) Moving with uniform acceleration

4. What does it indicate when the velocity-time graph of a body runs parallel to the time axis?
(a) At rest
(b) Having uniform acceleration
(c) Having zero acceleration
(d) Having non-uniform acceleration

5. When a particle moves halfway around a circular path of radius r, what is its displacement?
(a) Zero
(b) π r
(c) 2 r
(d) 2π r

6. What formula determines the maximum height a body reaches when thrown vertically upward with velocity u?
(a) u/g
(b) u²/2g
(c) u²/g
(d) u/2g

7. What does the numerical ratio of displacement to distance indicate for a moving object?
(a) Always less than 1
(b) Always equal to 1
(c) Always more than 1
(d) Equal to or less than 1

8. If a boy rides a merry-go-round moving at a constant speed of 10 m/s, what can be inferred about his motion?
(a) At rest
(b) Moving with no acceleration
(c) In accelerated motion
(d) Moving with uniform velocity

9. What physical quantity does the area under a v – t graph represent, and what unit does it have?
(a) m²
(b) m
(c) m³
(d) m/s

10. Analyzing the distance versus time graphs of four cars, which statement is correct?
(a) Car A is faster than car D.
(b) Car B is the slowest.
(c) Car D is faster than car C.
(d) Car C is the slowest.

11. What does the slope of a velocity – time graph signify?
(a) The distance
(b) The displacement
(c) The acceleration
(d) The speed

12. In which motion scenario are distance moved and magnitude of displacement equal?
(a) Car moving on a straight road
(b) Car moving in a circular path
(c) Pendulum swinging to and fro
(d) Earth revolving around the Sun

13. Which figure represents uniform motion of a moving object correctly? (Refer to Figure)

Also Check: Worksheets Class 9 Science

Short Answer Questions

14. If the displacement of a moving object within a time interval is zero, what can be said about the distance traveled? Justify your answer.
15. How do equations of motion change for an object moving with uniform velocity?
16. Starting from rest, a car accelerates at 5 m/s² for 8 seconds and then continues at a constant velocity. What distance does it cover in the first 12 seconds?
17. A motorcyclist travels from A to B at 30 km/h and returns at 20 km/h. Find the average speed.
18. Draw a velocity-time graph for a stone thrown vertically upwards and then coming downwards after reaching maximum height.
19. Analyzing the velocity-time graph of a cyclist, determine (i) acceleration, (ii) velocity, and (iii) distance covered in 15 seconds.

Long Answer Questions

21. An object starting from rest travels 20 m in the first 2 s and 160 m in the next 4 s. What is its velocity after 7 s?
22. An electron initially moving at 5 × 10^4 m/s experiences uniform acceleration of 10^4 m/s². Find (i) the time to double its velocity and (ii) the distance covered.
23. Derive a relation for the distance traveled by an object with uniform acceleration between the 4th and 5th seconds.
24. Two stones are thrown upwards with initial velocities u1 and u2. Prove that the heights reached by them are in the ratio of u1² : u2².
25. If one object is dropped from 150 m and another from 100 m simultaneously, what’s their height difference after 2 s? How does this difference vary with time?

Also Read: NCERT Solutions for Class 9 Science

Benefits of CBSE Class 9 Worksheet Chapter 1 Motion

Solving Motion Worksheet Class 9 offers numerous benefits that contribute to a deeper understanding of physics principles and enhance overall learning. Here are some key advantages:

Conceptual Clarity: Motion worksheets typically cover fundamental concepts such as velocity, acceleration, displacement, and time. By solving these worksheets, students gain a clearer understanding of these concepts and how they relate to each other in real-world scenarios.

Problem-Solving Skills: Motion worksheets often present students with various problems requiring application of mathematical formulas and principles to solve. This enhances students’ problem-solving skills and boosts their ability to analyze and interpret different situations.

Enhanced Mathematical Proficiency: Motion problems involve mathematical calculations such as solving equations, manipulating formulas, and interpreting graphical representations. Regular practice through worksheets helps students become more proficient in mathematical techniques and improves their overall mathematical aptitude.

Real-World Application: Many motion problems are based on real-world scenarios, such as motion of vehicles, projectiles, or objects in free fall. By solving these problems, students can better understand the practical applications of physics concepts in everyday life.

Preparation for Exams: Solving motion worksheets serves as excellent preparation for exams. It helps students familiarize themselves with the types of questions they might encounter and builds confidence in tackling similar problems during exams.

CBSE Worksheets Class 9 for All Subjects

Faq’s on CBSE Class 9 Worksheet Chapter 1 Motion

Why is Motion Worksheet Class 9 important?

Motion Worksheet Class 9 is important as it provides practice problems aligned with the curriculum, helping students reinforce their understanding of motion concepts and prepare for exams effectively.

What types of problems are included in Motion Worksheet Class 9?

Motion Worksheet Class 9 includes multiple choice, short answer, and long answer questions covering various topics such as velocity, acceleration, displacement, and time.

How can Motion Worksheet Class 9 benefit students?

Motion Worksheet Class 9 benefits students by enhancing their conceptual clarity, problem-solving skills, mathematical proficiency, and understanding of real-world applications of physics principles.

Is Motion Worksheet Class 9 suitable for self-study?

Yes, Motion Worksheet Class 9 can be used for self-study purposes. Students can attempt the problems independently to assess their understanding and identify areas for improvement.

Can Motion Worksheet Class 9 be used for exam preparation?

Yes, Motion Worksheet Class 9 serves as an excellent resource for exam preparation. By solving the problems in the worksheet, students can familiarize themselves with the types of questions they may encounter in exams and build confidence in tackling similar problems.