P2.3.3 - Gravitional field and potential energy

Question 1

What is mass?

Answer 1

The amount of matter a body contains

Question 2

What is weight?

Answer 2

The force due to gravity that acts on an object

Question 3

What is a gravitational field?

Answer 3

It is a region in where a mass experiences an attractive force

Question 4

What equation links gravity force, mass and gravitational field strength?

Answer 4

gravity force = mass x gravitational field strength

Question 5

What is gravitational field strength?

Answer 5

The force on 1kg in a gravitational field

Question 6

What is the equation for weight?

Answer 6

Weight = mass x gravitational field strength

Question 7

What is the gravitational field strength of the earth?

Answer 7

10N/kg

Question 8

What is the gravitational field strength of the moon?

Answer 8

1.6N/kg

Question 9

What is equation linking resultant force, mass and acceleration due to gravity?

Answer 9

resultant force = mass x acceleration due to gravity

Question 10

What is gravitational potential energy?

Answer 10

The energy stored by a body whenever it is raised through a height in a gravitational field

Question 11

What is the equation for gravitational potential energy?

Answer 11

Gravitational potential energy = mass x height x gravitational field strength