4 - Gravitational and Electric Fields definitions - PHYSICS
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6 Terms
Newton's Law of Universal Gravitation
Every particle with mass in the universe attracts every other particle with a force which is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centres
Weight
The gravitational force the Earth exerts on any object on or near its surface
Gravitational field
The force acting per unit mass
Coulomb’s law
Two point charges exert forces on each other. The force is directly proportional to the product of the charges and inversely proportional to the square of the distance between the charges
Electric field at a point
The force per unit positive charge