chapter 1 Flashcards
motion
an objects change in position relative to a refrence point
speed
the distance traveled divided by the time invertal during wich the motion occured
velosity
the spped of an object in a particular direction
acceleration
the rate at wich velosity changes over time
force
a push or pull extended on an object in order to change the motion of an object
newton
the Si unit fro force
net force
the combination of all of the forces acting on an object
friction
a force that opposes motion between two surfaces that are in contact
gravity
a force of attraction between objects that is due to their mass
wieght
a measure of the gravitational force exerted on an object
mass
a measure of the amount of matter in an object