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forces (types (gravity (gives you your weight), magnetic, measured in…
forces
types
gravity
gives you your weight
magnetic
measured in Newtons
friction
balanced and unbalanced
balanced
forces mean that you go at the same pace
unbalanced
forces mean that you either slow down or speed up
floating
upthrust exerted by water
weight of floating object
speed
swimming & flying
there are
four
principles in either
weight
gravity
lift
upthrust
drag
friction
thrust
thrust
density
gravity
an object has more gravity if it is bigger
for example
if you a connect tennis ball to a football with a rubber band and drop them at the same time, the tennis ball will mave towards the football
this is because the football is bigger, so it has a larger
gravitational field strength
if you jump, you fall back down to Earth because the Earth is many times bigger than you
weight
