gravi field

Question 1

gravitational field

Answer 1

a region of space where a mass experiences a gravitational force

Question 2

gravitational force; Newton’s law of gravitation

Answer 2

directly proportional to the product of two point masses and inversely proportional to the square of their separation, and it acts along the line joining the two point masses

Question 3

gravitational field strength

Answer 3

gravitational force experienced per unit mass by a small test mass placed at that point in the gravitational field

Question 4

gravitational potential

Answer 4

work done per unit mass by an external force in bringing a small test mass from infinity to that point.