Gravitational and Electric Fields:

Question 1

Weight (Fg)

Answer 1

The gravitational force the Earth exerts on any object on or near its surface

Question 2

Newton’s Law Of Universal Gravitation

Answer 2

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

Question 3

Gravitational field

Answer 3

The force acting per unit mass

Question 4

Coulomb’s law

Answer 4

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

Question 5

The magnitude of the electric field:

Answer 5

The force per unit positive charge E = F/q where E and F are vectors