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Physics-Class-9

62 posts

Defects of Vision and Their Correction

Last Updated: 09 April 2026

The human eye acts as a natural optical instrument that allows us to see objects by forming their images on the retina. For clear vision, light rays coming from an object ...read more

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Physics-Class-9

Physics-Class-10

Physics-Concepts

Graphical Representation of Motion

Last Updated: 25 March 2026

Motion is one of the fundamental concepts in physics, and understanding it becomes much easier when it is represented graphically. Instead of only relying on equations and...read more

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Physics-Class-9

Physics-Class-11

9th Grade Science

Last Updated: 08 April 2026

9th grade science introduces students to the basic principles of chemistry, biology, and physics. It focuses on understanding the nature of matter, the structure of atoms ...read more

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Biology-Class-9

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Chemistry-Class-9

School Resources

Why do we tire lifting heavy objects?

Last Updated: 23 July 2025

Have you ever tried lifting a heavy box and felt your arms start to ache after just a few seconds? Whether you are moving furniture or carrying a backpack full of books, l...read more

Physics-Class-9

Physics-Class-11

Physics-Concepts

Why does a passenger move outward when the bus turns?

Last Updated: 23 July 2025

Have you ever felt pushed outward when a bus takes a sharp turn? This happens due to inertia—your body wants to keep moving straight while the bus turns. As a result, you ...read more

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Physics-Class-9

Physics-Class-11

Newton’s Third Law and Gun Recoil

Last Updated: 15 July 2025

Recoil refers to the backwards motion of a gun when it fires a bullet. This happens due to Newton’s Third Law — every action has an equal and opposite reaction. As the bul...read more

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Physics-Class-9

Physics-Class-11

How does gravity affect the motion of an object?

Last Updated: 23 July 2025

Gravity is a fundamental force of nature that affects everything with mass. It is responsible for pulling objects toward the Earth and influencing their motion. This force...read more

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Physics-Class-9

Physics-Class-11

How to Calculate Force of Gravity

Last Updated: 23 July 2025

Force of gravity is one of the most fundamental concepts in physics, governing the motion of objects in the universe. Understanding how to calculate the force of gravity i...read more

School Learning

Physics-Class-9

What is the Relation between G and g?

Last Updated: 23 July 2025

G is the gravitational constant that helps us calculate the force between two masses. On the other hand, g measures how fast objects fall due to gravity. The relation betw...read more

School Learning

Physics-Class-9

Last Updated: 23 July 2025

The acceleration felt by a free-falling object due to the gravitational force of the mass body is called gravitational acceleration. It is denoted by g and calculated usin...read more

School Learning

Physics-Class-9

Difference Between Mass and Weight

Last Updated: 23 July 2025

Mass and weight are two different physical quantities which are often confused. Mass refers to the amount of matter in an object, while weight is the gravitational force a...read more

School Learning

Physics-Class-9

Physics-Difference-Between

Last Updated: 23 July 2025

An accelerometer is a device that measures acceleration forces, such as gravity and motion, by converting them into electrical signals. These devices are used in various t...read more

School Learning

Physics-Class-9

Last Updated: 23 July 2025

Uniform motion describes the movement of an object at a constant speed, either in a straight line or along a circular path. Consider an object which covers equal distance ...read more

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School Learning

Physics-Class-9

Rest and Motion

Last Updated: 15 February 2026

Rest refers to the state of an object when its position is not changing with respect to its surroundings with the passage of time. Motion, on the other hand, refers to the...read more

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School Learning

Physics-Class-9

Rocket Propulsion

Last Updated: 23 July 2025

Rocket Propulsion is the process of moving a rocket or spaceship through Earth's atmosphere or into empty space. It is based on the idea that there is an equal and opposit...read more

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School Learning

Physics-Class-9

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