science ch. 10

study of matter and energy and the interactions occurring between them

scalar representing the total length of the objects path

objects change in position

a vector showing the combined effect of two or more other vectors

states that the square of the hypotenuse equals the sum of the square of the legs

branch of physics that addresses the effects of forces on matter

the mathematical quantity having both direction and magnitude

Distance traveled by an object per unit time

any two objects attract each other through gravitational force

the gravitational force exerted on an objet near the surface of the earth or any celestial body

what means "center-seeking"

"center-fleeing"

resistance arising to an object's motion through a fluid or across a surface

devices for doing work that we devised to multiply muscle power and enable the construction of these  otherwise impossible edifices

measure of how well a machine converts input work into output work

one of the most versatile of the simple machines

the point in which the beam rest

combination can be considered a simple machine similar to a circular lever

simple machine consisting of a wheel over which a rope or cable passes