Units and Measurement

Measurement of any physical quantity involves comparison with a certain basic, arbitrarily chosen, internationally accepted reference standard called unit. The result of a measurement of a physical quantity is expressed by a number (or numerical measure) accompanied by a unit. A unit of measurement is a definite magnitude of a quantity, defined and adopted by … Read more

Gravitational Force

Here is a list of subtopics without any description for Gravitational Force: Gravitational acceleration Gravitational constant Gravitational field Gravitational potential energy Gravitational waves Newton’s law of universal gravitation Tidal force Gravitational force is one of the four fundamental forces of nature, along with electromagnetism, the strong force, and the weak force. It is the force … Read more

Magnetism

 Magnetism Magnetism is one aspect of the combined electromagnetic force. It refers to physical phenomena arising from the force caused by magnets, objects that produce fields that attract or repel other objects. All materials experience magnetism, some more strongly than others. Permanent magnets, made from materials such as iron, experience the strongest effects, … Read more