CBSE Class 9 > Class 9 Notes > Science New NCERT 2026-27 (New Syllabus) > PPT: Describing Motion Around Us
PPT: Describing Motion Around Us
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Page 1 Describing Motion Around Us A Class 9 Science visual guide to understanding how and why things move. Page 2 Describing Motion Around Us A Class 9 Science visual guide to understanding how and why things move. I n t r o d u c t i o n Page 3 Describing Motion Around Us A Class 9 Science visual guide to understanding how and why things move. I n t r o d u c t i o n Motion in a Straight Line Page 4 Describing Motion Around Us A Class 9 Science visual guide to understanding how and why things move. I n t r o d u c t i o n Motion in a Straight Line Page 5 Describing Motion Around Us A Class 9 Science visual guide to understanding how and why things move. I n t r o d u c t i o n Motion in a Straight LineRead More
FAQs on PPT: Describing Motion Around Us
| 1. What is the definition of motion? |  |
Ans. Motion is defined as the change in position of an object with respect to time. It occurs when an object moves from one location to another and can be described in terms of distance, displacement, speed, velocity, and acceleration.
| 2. How can we classify types of motion? | |
Ans. Motion can be classified into various types, including linear motion, rotational motion, periodic motion, and translational motion. Linear motion occurs in a straight line, rotational motion involves movement around an axis, periodic motion repeats at regular intervals, and translational motion refers to the movement of an object from one location to another.
| 3. What is the difference between speed and velocity? | |
Ans. Speed is a scalar quantity that refers to how fast an object is moving, measured as distance travelled per unit of time. In contrast, velocity is a vector quantity that includes both the speed of the object and its direction of motion. For example, a car moving at 60 km/h towards the north has a velocity of 60 km/h north.
| 4. What is acceleration and how is it calculated? | |
Ans. Acceleration is defined as the rate of change of velocity of an object with respect to time. It is calculated using the formula: acceleration (a) = (final velocity (v) - initial velocity (u)) / time (t). Acceleration can be positive or negative, indicating an increase or decrease in velocity, respectively.
| 5. Why is it important to study motion in everyday life? | |
Ans. Studying motion is crucial as it helps us understand how objects interact and move in our environment. Knowledge of motion allows us to predict the behaviour of moving objects, which is essential in various fields such as engineering, sports, transportation, and even in daily activities like driving or walking. Understanding motion also forms the basis for more complex concepts in physics.
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Apr 25, 2026 Last updated
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Document Description: PPT: Describing Motion Around Us for Class 9 2026 is part of Science Class 9 New NCERT 2026-27 (New Syllabus) preparation. The notes and questions for PPT: Describing Motion Around Us have been prepared according to the Class 9 exam syllabus. Information about PPT: Describing Motion Around Us covers topics like and PPT: Describing Motion Around Us Example, for Class 9 2026 Exam. Find important definitions, questions, notes, meanings, examples, exercises and tests below for PPT: Describing Motion Around Us.
Introduction of PPT: Describing Motion Around Us in English is available as part of our Science Class 9 New NCERT 2026-27 (New Syllabus) for Class 9 & PPT: Describing Motion Around Us in Hindi for Science Class 9 New NCERT 2026-27 (New Syllabus) course. Download more important topics related with notes, lectures and mock test series for Class 9 Exam by signing up for free. Class 9: PPT: Describing Motion Around Us
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