# Kinematics ppt for class 11

Every year there are questions directly asked from this topic. Some questions can be asked directly. Thus, it is very important to have a clear cut on this topic. This topic relates to our daily life, hence it is very easy to understand. You can also download the Kinematics Notes in the PDF format through the link shared at the end of this post. Frame of reference — Frame of reference is the set of axes which is used to specify the position of the object in a space.

The set of axes is rectangular coordinate system which consist three mutually perpendicular axis X, Y, and Z. The point of intersection of these axes is known as the origin or reference point.

Position- Position of an object is essential to describe the motion of the object. The position of the object is the set of axes from a reference point. In the above image, the position of point A from the reference point is. Motion- An object is said to be in motion if it changes its position with time, with respect to its surroundings.

Motion of the object can be represented by the position-time graph. The position-time graph helps to analyze the motion of an object. If an object is moving along the straight line covers equal distances in equal interval of time, then the motion is known as uniform motion. Non- Uniform Motion. If an object covers unequal distances in equal interval or equal distance in unequal time interval, then it is known as non-uniform motion.

Distance is also known as the path length. Distance-time graph- The gradient of the distance-time graph represents the speed of the object. Displacement- The difference between the final and initial position is called displacement. Displacement-time graph- The gradient of displacement time graph represents the velocity. Speed— Speed of an object is the ratio of distance travelled by the object to the time taken. Types of Speed. Uniform speed - An object is said to be moving with a uniform speed if it covers the equal distance in equal intervals of time.

Non-Uniform speed - An object is said to be non-uniform speed if it covers the equal distance in the unequal time interval or unequal distance in the equal time interval.

Average speed- The ratio of total path length travelled divided by the total time interval during the motion is known as the average speed of the object. Instantaneous speed- The speed of the body at any instant of time or at a position is called instantaneous speed. Velocity- Velocity of an object is the ratio of displacement to the total time taken by the object.

Uniform velocity - An object is said to be moving with a uniform velocity if it covers the equal distance in equal intervals of time. Non-Uniform velocity - An object is said to be non-uniform velocity if it covers equal distance in unequal time interval or unequal distance in an equal time interval.

Average velocity - The ratio of total path length travelled divided by the total time interval during the motion is known as the average velocity of the object. Instantaneous velocity - The velocity of the body at any instant of time or at a position is called instantaneous velocity.

Acceleration- The rate of change in velocity of an object is known as the acceleration of the object. Uniform Acceleration - A body is said to have uniform acceleration if magnitude and direction of the acceleration both remains constant during motion.

Non-Uniform Acceleration - A body is said to have non-uniform acceleration if magnitude and direction of the acceleration both change during motion. Equation of motion for a uniformly accelerated motion.After you enable Flash, refresh this page and the presentation should play. Get the plugin now. Toggle navigation. Help Preferences Sign up Log in. To view this presentation, you'll need to allow Flash.

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## Physics I Class 11 - PowerPoint PPT Presentation

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It is the study of motion of bodies excluding forces. Is it a scalar or a vector quantity? Justify your answer. What is the distance travelled? What is its displacement? The Mauritius Institute of Education 7 Kinematics Uniform velocity An object is moving with uniform velocity if it covers equal displacement in equal time. The Mauritius Institute of Education 8 Kinematics Instantaneous velocity It is the change of displacement at a particular instant of time.

Stretch Your Mind Calculate the average velocity of an object starting with initial velocity u and attaining velocity v during time t. What is the instantaneous velocity?

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An object starts with initial velocity u, attains velocity v during time t. The Mauritius Institute of Education 12 Kinematics Mathematical Interpretation of Motion Refer to worksheet 1 In deriving the equations of kinematics, there are two assumptions that you should take into consideration. What are they? The Mauritius Institute of Education 13 Graphical Representation of Motion distance time graph By looking at the data in the table, can you deduce the type of motion?

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There should be a title to the graph, for e. The Mauritius Institute of Education 25 Graphical Representation of Motion distance time graph Stretch Your Mind With reference to your mathematics knowledge, how can it be deduced that the object is at rest? Motion down an inclined plane. Justify your arguments using your mathematics knowledge. It represents the motion of a child walking along a straight road. Write a description of the childs motion, including as much detail as you can.

Refer to your maths knowledge. With reference to the graph, can you deduce whether acceleration is constant? The Mauritius Institute of Education 38 uniformly accelerated motion The Mauritius Institute of Education 39 acceleration of free fall Any object when released from a certain height above ground level will fall with constant acceleration acceleration of free fall.If you're seeing this message, it means we're having trouble loading external resources on our website.

Class 11 Physics India. Vector basics.

## Kinematics - PowerPoint PPT Presentation

Intro to vectors and scalars Opens a modal. Recognizing vectors Opens a modal.

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Recognizing vectors practice Opens a modal. Equivalent vectors Opens a modal. Components of vectors Opens a modal. Components of vectors example 2 Opens a modal. Equivalent vectors. Components of vectors. Magnitude of vectors. Vector magnitude from graph Opens a modal. Vector magnitude from components Opens a modal. Scalar multiplication.

### Kinematics, Chapter Notes, Class 11, Physics (IIT-JEE & AIPMT) | EduRev Notes

Scalar multiplication of vectors Opens a modal. Analyzing scalar multiplication Opens a modal. Analyze scalar multiplication.Published on Mar 28, Nanotechnology: The Smaller The Stronger. Wireless Energy: The Future of Electricity.

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Nonlinear Oscillations in Mechanical Systems. Observations of Gas in the Infrared Spectrum.Kinematics : 1. Fig: An object at rest. Motion is broadly classified into 3 categories : 1.

Rectilinear and translatory motion. Circular and rotatory motion. Fig: Example of circular motion. Oscillatory and vibratory motion. When a particle is moving along a straight line, then its motion is a rectilinear motion.

Fig: Example of rectilinear motion. C Distance : The length of the actual path traversed by the particle is termed as its distance. D Displacement : The change in position vector of the particle for a given time interval is known as its displacement. E Average speed and average velocity : Average speed and average velocity are always defined for a time interval. Both have the same SI units, i. F Instantaneous speed and instantaneous velocity : Instantaneous speed is also defined exactly like average speed i.

The instantaneous speed is the speed at a particular instant of time and may have entirly different value than that of average speed. As Dt tends to zero, the ratio defining speed becomes finite and equals to the first derivative of the distance. The speed at the moment 't' is is called the instantaneous speed at time 't'. On the distance - time plot, the speed is equal to the slope of the tangent to the curve at the time instant 't'. It is equal to the ratio of total displacement and time interval, but with one qualification that time interval is extremely infinitesimally small.

Thus, instantaneous velocity can be termed as the average velocity at a particular instant of time when Dt tend to zero and may have entirely different value that of average velocity, Mathematically.Physics is a lovely subject but can also be quite difficult to master. One of the most critical subjects in science is Physics as it deals with the various properties of matter and nature.

It forms the base for many scientific subjects that students take later in life. We have laid out the chapters in such a way that they can be downloaded directly to your computer.

You have the option of downloading either the entire syllabus or each chapter separately. The solutions contain all the chapters laid out and answered by our panel of expert teachers.

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With many years of expertise on board-issued textbooks, they mark out important questions and give you tips on how to solve them.

It is essential that you have a good grasp on a subject like Physics as it includes plenty of formulae and fundamental concepts that form the base for your CBSE 12th grade syllabus. With the NCERT Physics class 11 solutions, you can perform better in your class and gain the necessary confidence to tackle your final year in school. Since Physics comes with different concepts, you are at liberty to give greater attention to the more important ones. By solving different types of problems, you get quicker at answering difficult questions.

They say that practice makes perfect. Our solution gives you ample practice to help you approach any problem with ease. Any changes made to the syllabus by the National Board is immediately identified, and the solution is updated for the same.

Physics is a subject that forms one of the core elements of engineering, a route that a lot of students studying it in 11 naturally take. It is essential that you get your basics right and tackle more challenging problems later on. They have been teaching the subject for many years and understand the type of questions which have a higher chance of occurring in the examinations.

The solutions are also updated according to the latest syllabus of the different subjects that are made at the beginning of the year. This chapter will help you to build a concrete foundation which in turn can help you learn further concepts of physics and its various dynamics. Different kinds of topics related to different physical forces i.

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