13. Motion and Time Class 7 Science [LATEST] Solutions Chapter-Review in English - CBSE Study
NCERT Solutions for Class 7 Science are carefully prepared according to the latest CBSE syllabus and NCERT textbooks to help students understand every concept clearly. These solutions cover all important 13. Motion and Time with detailed explanations and step-by-step answers for better exam preparation. Each Chapter-Review is explained in simple language so that students can easily grasp the fundamentals and improve their academic performance. The study material is designed to support daily homework, revision practice, and final exam preparation for Class 7 students. With accurate answers, concept clarity, and structured content, these NCERT solutions help learners build confidence and score higher marks in their examinations. Whether you are revising a specific topic or preparing an entire chapter, this resource provides reliable and syllabus-based guidance for complete success in Science.
Class 7 English Medium Science All Chapters:
13. Motion and Time
1. Chapter-Review
Chapter Review:
- The distance covered by an object in a unit time as the speed of the object.
- If the speed of an object moving along a straight line keeps changing, its motion is said to be non-uniform.
- An object moving along a straight line with a constant speed is said to be in uniform motion.
- The time taken by the pendulum to complete one oscillation is called its time period.
- The basic unit of time is a second.
- The speedometer of a car measure Speed.
- The odometer of a car measure Distance.
- The speed is the total distance covered divided by the total time taken is called average speed.
- The time between one sunrise and the next was called a day.
- A month was measured from one new moon to the next.
- A year was fixed as the time taken by the earth to complete one revolution of the sun.
- The metallic ball is called the bob of the pendulum.
- The to and fro motion of a simple pendulum is an example of a periodic or an oscillatory
motion. - The smallest time interval that can be measured with commonly available clocks and watches is one second.
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