weight, mass and gravity Flashcards
what is the gravitational force
- gravitational force is the force of attraction between all masses
what does gravity attract
-gravity attracts all makes
what are 2 important effects of gravity
1- it gives every thing weight
2- on a surface of a planet it makes all thing accelerate towards the ground
true or false
weight and mass are the same
false
-weight and mass are not the same
what is mass
-mass is the amount of stuff in an object
true or false
for any given object it will have the same mass value any where in the universe
true
-mass doesn’t change anywhere in the universe
what is weight caused by
- weight is caused by
- the pull of the gravitational force
- weight of an an object is just the force of gravity pulling towards the centre of the earth
will the weight of an object be the same in earth and moon
-the object weight will be different
true or false
-the object weight will be different for example a mass of 1kg will weigh less on the moon as of the gravitational force pulling on it is less
true
-because the gravitational force will be less
what is weight measured in
weight = kg
what is mass measured in
mass = N
true or false
mass is a force
false
mass is not force
what is formula for weight
formula weight
-weight = mass x gravitational field strength
what does the letter G represent in gravity
-G represents the strength of gravity and its value is different on different planets