gravity/mass and weight

Question 1

what is mass?

Answer 1

mass is how much ‘stuff’ (protons, neutrons and electrons) are in something

Question 2

what is weight?

Answer 2

weight is the force of gravity and depends on distance and mass

Question 3

what is gravity?

Answer 3

gravity is the topic of anything gravitational (gravity itself is not a force)

Question 4

what is a field?

Answer 4

a field is the area where an object feels force

Question 5

what is the relationship between mass and weight?

Answer 5

as the mass increases, the force of gravity (Fg) also increases- they are directly proportional to the

Question 6

what does gravitational field strength tell us?

Answer 6

tells us how strong the gravitational field is at a point (e.g. in the the earth’s surface)

Question 7

what is gravity on the earth’s surface?

Answer 7

9.81 N/kg

Question 8

what is gravity of the moon?

Answer 8

1.6 N/kg (9.81/6=1.6)
(less than on earth because the moon has less mass)

Question 9

why do you feel lighter on the moon?

Answer 9

the higher you are, the further you are from the centre of the earth