9th Class Physics Chapter 2 Notes

Complete Notes of 9th class physics chapter 2 notes Kinematics Notes of 9th Class Physics English Medium written by Professor Tayyab Shahzad. These computerized notes are very helpful in the preparation of Kinematics Notes for students of the 9th class physics chapter 2 notes these are according to the paper patterns of all Punjab boards.

• Here are the detailed Class 9 physics notes chapter 2 to help you prepare for your exams.
• Kinematics Exercise Multiple Choice Questions (MCQs) with Correct Answers
• Kinematics Exercise Short Questions with Answers
• Explain translatory motion and give examples of various types of translatory motion.
• Define the terms speed, velocity, and acceleration.
• Differentiate between the following: (a) Rest and motion. (b) Circular motion and rotatory motion. (c) Distance and displacement. (d) Speed and velocity. (e) Linear and random motion. (f) Scalars and vectors.
• Can a body moving at a constant speed have acceleration?
• How do riders in a Ferries wheel possess translatory motion but not rotatory motion?
• You can also download the class 9 physics chapter 2 notes pdf for free.
• What would be the shape of a speed-time graph of a body moving with variable speed?
• Sketch a distance-time graph for a body starting from rest. How will you determine the speed of a body from this graph?
• Which of the following can be obtained from the speed-time graph of a body? (a) Initial speed (b) Final speed (c) Distance covered in time t (d) Acceleration of motion
• How can vector quantities be represented graphically?
• How are vector quantities important to us in our daily life?
• Why vector quantities cannot be added and subtracted like scalar quantities?
• Derive equations of motion for uniformly accelerated rectilinear motion?
• If you're looking for comprehensive physics notes for class 9th chapter 2, you've come to the right place.
• Important Values and Important Formulas
• Kinematics Exercise Numericals with Solutions
• Scalars and vectors class 9: In Physics, we come across various quantities such as mass, length, volume, density, speed and force etc. We divide them into scalars and vectors.
• SCALARS: A physical quantity which can be completely described by its magnitude is called a scalar. The magnitude of a quantity means its numerical value with an appropriate unit such as 2.5 kg, 40 s, 1.8 m, etc. Examples of scalars are mass, length, time, speed, volume, work and energy.
• "A scalar quantity is described completely by its magnitude only".
• VECTORS: A vector can be described completely by magnitude alongwith its direction. Examples of vectors are velocity, displacement, force, momentum, torque, etc. It would be meaningless to describe vectors without direction. For example, distance of a place from reference point is insufficient to locate that place. The direction of that place from reference point is also necessary to locate it.
• "A vector quantity is described completely by magnitude and direction".
• Important notes of computer class 9 physics chapter 2 notes for Matriculation part-I students.
• Consider a table of the two forces F1 and F2 are acting on it. Does it make any 1 2 difference if the two forces act in opposite direction such as indicated. Certainly the two situations differ from each other. They differ due to the direction of the forces acting on the table. Thus the description of a force would be incomplete if direction is not given. Similarly when we say, we are -1 walking at the rate of 3 kmh-1 towards north then we are talking about a vector.
• Terms associated with motion class 9: When dealing with motion, we come across various terms such as the position of an object; the distance covered by it, its speed and so on. Let us explain some of the terms used.
• POSITION: The term position describes the location of a place or a point with respect to some reference point called origin. For example, you want to describe the position of your school from your home. Let the school be represented by S and home by H. The position of your school from your home will be represented by a straight line HS in the direction from H to S.
• Distance and displacement class 9: A curved path. Let S be the length of the curved path between two points A and B on it. Then S is the distance between points A and B.
• "Length of a path between two points is called the distance between those points".
• Consider a body that moves from point A to point B along the curved path. Join points A and B by a straight line. The straight line AB gives the distance which is the shortest between A and B. This shortest distance has magnitude d and direction from point A to B. This shortest distance d in a particular direction is called displacement. It is a vector quantity and is represented by d.
• "Displacement is the shortest distance between two points which has magnitude and direction".