AllRounder.ai

Enrol to start learning

Reading is open to everyone. Enrolling is free, and it is what unlocks the audio lessons, practice tests and progress tracking.

Enrol free

9. Gravitation

Learn about 9. Gravitation and discover its key concepts through interactive lessons and practical exercises.

Sections

Gravitation

Gravitation is the universal force of attraction between objects, responsible for the motion of celestial bodies and varying weights on Earth.

9 Section Overview

Start current section content and materials

9.1 Gravitation

Gravitation describes the attractive force between masses, governing the motion of celestial bodies and objects on Earth.

9.1.1 UNIVERSAL LAW OF GRAVITATION

The Universal Law of Gravitation explains how every object in the universe attracts every other object with a gravitational force proportional to their masses and inversely proportional to the square of the distance between them.

9.1.2 IMPORTANCE OF THE UNIVERSAL LAW OF GRAVITATION

The universal law of gravitation explains the attraction between all objects in the universe, highlighting its significance in various natural phenomena.

9.2 Free Fall

This section explains the concept of free fall and the effects of gravity on falling objects.

9.2.1 TO CALCULATE THE VALUE OF GRAVITY

This section discusses how to calculate the acceleration due to gravity, denoted as 'g', using the universal gravitational constant and other values.

9.2.2 MOTION OF OBJECTS UNDER THE INFLUENCE OF GRAVITATIONAL FORCE OF THE EARTH

This section examines the effects of Earth's gravitational force on the motion of objects, demonstrating that acceleration due to gravity is constant regardless of mass.

9.3 Mass

This section discusses the concept of mass, its constancy across different locations, and the weight of an object as a measure of gravitational force exerted on it.

9.4 Weight

This section explains the concepts of weight, its dependence on mass and gravitational acceleration, and how weight varies between different celestial bodies.

9.4.1 WEIGHT OF AN OBJECT ON THE MOON

This section discusses how the weight of an object varies between the Earth and the Moon due to their different gravitational forces.

9.5 Thrust and Pressure

This section explains the concepts of thrust and pressure and how they affect different objects based on their shape and area.

9.5.1 PRESSURE IN FLUIDS

This section discusses how fluids exert pressure on objects, describing the effects of thrust and buoyancy.

9.5.2 BUOYANCY

This section introduces the concept of buoyancy, explaining the forces acting on submerged objects and the conditions under which they float or sink in fluids.

9.5.3 WHY OBJECTS FLOAT OR SINK WHEN PLACED ON THE SURFACE OF WATER

Objects float or sink in water based on their density relative to the density of water, influenced by buoyant forces.

9.6 Archimede's Principle

Archimedes’ principle states that a body immersed in a fluid experiences an upward force equal to the weight of the fluid displaced by it.

Learning Objectives

  • Master the fundamentals of 9. Gravitation

  • Apply learned concepts in practical scenarios

  • Successfully complete all chapter exercises