by BrainHub | Jul 30, 2023 | Updates
Fluids are the sustances which can flow e.g., liquids and gases. It does not possess definite shape. • When an object is submerged in a liquid at rest, the fluid exerts a force on its surface normally. It is called thrust of the liquid. • Pressure The thrust...
by BrainHub | Jul 30, 2023 | Updates
• Inter molecular Force In a solid, atoms and molecules are arranged in such a way that each molecule is acted upon by the forces due to the neighbouring molecules. These forces are known as inter molecular forces. • Elasticity The property of the body to regain its...
by BrainHub | Jul 30, 2023 | Updates
• Kepler’s Laws of Planetary Motion Johannes Kepler formulated three laws which describe planetary motion. They are as follows: (i) Law of orbits. Each planet revolves around the sun in an elliptical orbit with the sun at one of the foci of the ellipse. (ii) Law of...
by BrainHub | Jul 30, 2023 | Updates
• A rigid body is a body with a perfectly definite and unchanging shape. The distances between all pairs of particles of such a body do not change. • Centre of Mass For a system of particles, the centre of mass is defined as that point where the entire mass of the...
by BrainHub | Jul 30, 2023 | Updates
• Work is said to be done when a force applied on the body displaces the body through a certain distance in the direction of applied force. It is measured by the product of the force and the distance moved in the direction of the force, i.e., W = F-S • If an object...
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