Force Fields Flashcards
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
Describe gravitational field
a region in space where a mass will experience a force
Define gravitational field
the force acting per unit mass
Coulomb’s Law
two point charges in free space or air 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
Describe electric fields
a region of space in which an electric charge experiences a force.
define magnitude of an electric field
the force per unit positive charge E = F/q where E and F are vectors
Description of Gravitational force field
a region in space where amass will experience a force.
definition of a gravitational field “g”
the force acting per unit mass.
The direction of the electric field
the direction that a positivet test charge would move if placed at that point.
