the laws of motion

I didn't know any other tag other than SAT so I clicked it bu is it not SAT

force

a push or a pull on an object and is a vector (N)

exert

to apply a force

noncontact force (force field)

a force that one object can apply on another object without touching

gravity

an attractive force that exists between all objects that have mass

mass

the atom count of an object (kg)

the law of universal gravitation

every object is attracted to each other by a gravitational force

Weight

the force of gravity on an object (N)

gravitational force and mass

When the mass of one or both objects increases, the gravitational force between them also increases.

gravitational force and distance

Gravitational force decreases as the distance between them increases.

relationship between weight and mass

An object's weight is proportional to its mass

Friction

a force that resists the motion of two surfaces that are touching

static friction

prevents two surfaces from sliding past each other

sliding friction

opposes the motion of things that are already sliding past each other

fluid friction

Friction between a surface and a fluid, such as air or water

Cause of friction

microscopic dips and bumps that slows sliding

lubricant

A substance that reduces friction

net force

The sum of all forces acting on an object

balenced forces

forces acting on an object that combine and form a net force of zero

unbalanced forces

forces acting on an object that combine and form a net force that is not zero

Newton's First Law

An object will keep doing what it's already doing unless an unbalanced force makes it do something else.

terminal velocity

the constant velocity reached when air resistance equals the force of gravity on a falling object

inertia

The tendency of an object to resist a change in motion

Newton's second law

Force and acceleration are directly related. Mass and acceleration are indirectly related.

centripetal force

a force that acts perpendicular to the direction of motion, toward the center of the curve

Newton's third law

for every action force, there is always an equal and opposite reaction force

force pair

the forces two objects apply to each other

momentum

a measure of how hard it is to stop a moving object and is a vector

law of conservation of momentum

the total momentum of a group of objects stays the same unless outside forces act on the objects

elastic collision

Two objects bounce off each other.

inelastic collision

two objects collide and stick together