Mass, Weight and Gravity Flashcards
what is the mass of something
the amount of matter it contains
what is mass measured in
kilograms (kg)
what is weight
force of gravity pulling on mass
what is weight measured in
it is a force, so it measured in newtons (N)
what is gravity
the force of attraction between two forces
when can the force of gravity be stronger
if the objects have a larger mass
if the objects are closer together
what does gravity pull on every kilogram with a force of
10N
why is gravity not as strong on the moon
because the moon is much smaller than the earth
what does the suns gravity do to the planets
keeps the planets in a elliptical orbit
what would happen if there was no gravity from the sun
the planets would fly of into space
what keeps the moon in orbit around the earth
the earth gravity
