gravitational fields definitions

Question 1

Define newton’s law of gravitation

Answer 1

The gravitational force between 2 point masses is proportional to the product of the two masses but inversely proportional to the square of the distances between them

Question 2

Define Gravitational field strength

Answer 2

The force per unit mass

Question 3

Define gravitational potential

Answer 3

the gravitational potential is the amount of energy required to move an object from some point in a gravitational field to a reference point infinity of 0 gravitational force being applied.

Question 4

Define Gravitational potential difference

Answer 4

the difference in gravitational potential between 2 points in a gravitational field.

Question 5

Define Potential gradient

Answer 5

the potential gradient at a point in a gravitational field is the change in potential per metre moved perpendicular to the equipotentials.

Question 6

Define a gravitational field

Answer 6

A region in which a body experiences the gravitational force (non contact)