The Ultimate Physics Foundations Guide
vector - A quantity that has magnitude and direction
scalar - A physical quantity that has magnitude only.
contact force - a push or pull on one object by another that is touching it
non-contact force - a force that one object can apply to another object without touching
it
gravitational forces - the force of attraction between any 2 objects with mass: the greater the
mass, the greater the attraction
Weight - the force of gravity on an object
Mass - A measure of the amount of matter in an object
Weight equation - W=mg
earth's gravitational field strength - 9.8N/kg
Resultant force - The resultant of a system of force is the vector sum of all forces.
balanced forces - Equal forces acting on an object in opposite directions
Work done equation - force x distance
work done - energy transferred
Force, spring constant, extension - F=ke
elastic potential energy - E = 1/2ke^2
moment equation - M = Fd