Kinematics is the branch of physics that deals with the study of motion. It tells us how objects move, how to measure their motion, and how to describe it mathematically and visually. In simple words, it focuses on motion itself, without worrying about the forces that cause it.
In our daily life, motion is everywhere — from a car moving on the road to a ball rolling on the ground. Understanding motion helps us predict the position, speed, and direction of moving objects, which is important not just in physics but also in real-life situations like driving, sports, and engineering.
This chapter introduces concepts like distance, displacement, speed, velocity, and acceleration, which help us describe motion accurately. You will also learn how motion can be represented using graphs, making it easier to visualize how speed or velocity changes over time.
By studying kinematics, you will be able to analyze motion in real life, solve numerical problems efficiently, and develop a strong foundation for understanding more advanced topics in physics.
Class 9 Physics Chapter 2 Kinematics MCQs
1. If a body does not change its position with respect to some fixed point, it will be in a state of:
(a) Rest ✅
(b) Motion
(c) Uniform motion
(d) Variable motion
2. Which quantity has magnitude only?
(a) Vector
(b) Force
(c) Scalar ✅
(d) Velocity
3. Which physical quantity requires both magnitude and direction?
(a) Energy
(b) Speed
(c) Vector ✅
(d) Time
4. The motion of a fan is:
(a) Circular
(b) Translatory
(c) Rotatory ✅
(d) Vibratory
5. Example of vibratory motion is:
(a) Blades of fan
(b) Swing in park ✅
(c) Moving train
(d) Clock hand
6. If a car moves 300 m in 5 s, what is its average speed?
(a) 30 m/s
(b) 60 m/s
(c) 50 m/s ✅
(d) 75 m/s
7. A car is moving at 70 km/h towards north. Its speed is:
(a) Scalar quantity ✅
(b) Vector quantity
(c) Displacement
(d) Force
Class 9 Physics Chapter 2 Kinematics Short Questions
1. Define scalar and vector quantities.
Answer:
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Scalar Quantity: A physical quantity that has only magnitude (size) and no direction.
Examples: Distance, Speed, Time, Mass, Temperature -
Vector Quantity: A physical quantity that has both magnitude and direction.
Examples: Displacement, Velocity, Acceleration, Force
Tip:
Always remember: Magnitude only → Scalar, Magnitude + Direction → Vector.
2. What are Distance-Time and Speed-Time graphs?
Answer:
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Distance-Time Graph:
A graph that shows the distance covered by an object over time.-
The slope of the graph gives the speed of the object.
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A straight line indicates uniform motion, while a curved line indicates non-uniform motion.
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Speed-Time Graph:
A graph that shows how speed varies with time.-
The slope of the graph gives acceleration.
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The area under the graph gives distance traveled.
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3. What is a scalar quantity? Give two examples.
Answer:
A scalar quantity is a physical quantity that is fully described by its magnitude only and has no direction.
Examples: Mass, Temperature
4. What are the three main types of motion?
Answer:
The three main types of motion are:
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Translatory Motion: Motion in which all parts of an object move in the same direction along a straight or curved path.
Example: A moving car or a walking person -
Rotatory Motion: Motion in which an object spins around a fixed axis.
Example: Blades of a fan, a spinning wheel -
Vibratory Motion: Motion in which an object moves back and forth repeatedly about a fixed point.
Example: Swing in a park, guitar string vibration
📥 Download Chapter 2 Notes – Kinematics
Skip to PDF contentGet Class 9 Physics Chapter 2 complete notes for the 2026 Punjab Board new syllabus, including:
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Introduction to Kinematics
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Scalars and Vectors
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Rest and Motion
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Types of Motion
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Distance and Displacement
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Speed and Velocity
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Acceleration
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Graphical Analysis of Motion
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Important MCQs, Short Questions, and Formulas