Science Tri 2 Final Flashcards
reference point
the starting point you use to describe the location of an object
position
an object’s distance and direction from a reference point
motion
the process of changing position
velocity
the speed and direction of an moving object
acceleration
measure of the change in velocity in a certain amount of time
force
a push or a pull
Newton
SI unit of force
friction
a force that resists the sliding motion of two objects that are touching
net force
combination of all forces acting on an object
force pair
the forces two objects apply to each other, always occur in pairs
gravity
a forces of attraction between all objects that is due to mass
the formula for calculating speed
speed=distance/time
Newton’s First Law
an object in rest will stay at rest and an object in motion will stay in motion unless acted on by another force
Newton’s Second Law
force=mass x acceleration
Newton’s Third Law
for every action there is an opposite reactio
