# Category Archives: SCIENCE

## [GS] [Science] Wave, Mechanical Wave, Sound Wave For All Competitive Exams

Learn Science With Executive Makers [GS] [Science] Wave, Mechanical Wave, Sound Wave For All Competitive Exams Wave : A wave is a disturbance which propagates energy from one place to the other without the transport of matter. Waves are of two types (1) Mechanical wave (2) Non-Mechanical wave Mechanical Wave : The waves which require […]

## [GS] [Science] Law of Floatation, Buoyant Force, Archimedes Principle, Density & Relative Density

Learn Science With Executive Makers [GS] [Science] Law of Floatation, Buoyant Force, Archimedes Principle, Density & Relative Density Buoyant Force : When a body is immersed partly or wholly in a liquid, a force acts on the body by the liquid in the upward direction. This force is called buoyant force or upthrust. It is […]

## [GS] [Geography] Satellite, Orbital speed, Period of revolution, Geo-Stationary satellite & Escape velocity

[GS] [Geography] Satellite, Orbital speed, Period of revolution, Geo-Stationary satellite & Escape velocity Satellite: Satellites are natural or artificial bodies revolving around a planet under its gravitational attraction. Moon is a natural satellite while INSAT-IB is an artificial satellite of earth. Orbital speed of a satellite: Orbital speed of a satellite is independent of its […]

## [Science] [Physics] [GS] Gravitation, Newton’s Law, Gravity & Kepler’s Law

[Science] [Physics] [GS] Gravitation, Newton’s Law, Gravity & Kepler’s Law Gravitation : Every body attracts other body by a force called force of gravitation. Newton’s law of Gravitation : The force of gravitational attraction between two bodies is directly proportional to the product of their masses and inversely proportional to the square of the distance […]

## [GS] Physics [Science] Capillarity, Viscous Force, Viscocity & Critical Velocity

[GS] Physics [Science] Capillarity, Viscous Force, Viscocity & Critical Velocity Capillarity: If a capillary tube is dipped in a liquid, liquid ascends or descends in this tube.This phenomenon is called capillarity. The height by which liquid ascends or descends in a capillary tube depends upon the radius of the tube. The capillarity depends on the […]

## [GS] [Physics] Important Facts In Science

[GS] [Physics] Important Facts In Science Light year is the unit of distance. the distance that light travels in one year, about 9.4607×1012 Kilometres. The velocity of planet changes at the time of revolving the sun. When the planet closes the sun then its velocity is maximum and vice – versa. The unit of work […]

## [GS] [Physics] Scientific Instruments In Science

Scientific Instruments Altimeter– Measures altitudes in aircraft. Ammeter– Measures strength of electric current. Anemometer– Measures velocity of wind. Audiometer– Measures intensity of sound. Barometer– Measures atmospheric pressure. Bolometer– Measures heat radiation. Calipers– Measure inner and outer diameters. Calorimeter– Measures quantities of heat. Cardiogram (ECG)– Traces movements of the heart. Cryometer– A type of thermometer used […]

## [Science] Surface Tension, Cohesive Force & Adhesive Force

[Science] Surface Tension, Cohesive Force & Adhesive Force Surface Tension : It is the property of a liquid by virtue of which it has the tendency to have the area of its free surface minimum as if it were under tension like a stretched elastic membrane. If a force F acts on an imaginary line […]

## [Science] Pressure & Its Use in Physics

PRESSURE Pressure : Pressure is defined as force acting normally on unit area of the surface. P = F/A = Force/Area SI unit of pressure is N/M2 also called pascal (Pa). Pressure is a Scaler quantity. If the area is less then the pressure will be more. Atmospheric Pressure : It is that pressure which […]