Physics Force

Front 1

Inertia

Back 1

The tendency of an object to remain in its present state of motion

Front 2

Mass

Back 2

The quantitative measure of an object's inertia

Front 3

Weight

Back 3

The gravitational force an object experiences when near a much larger body (such as Earth)

Front 4

Center of Mass

Back 4

The single point at which, for the purposes of a simple mechanics problem, all the mass of that system can be considered to be concentrated OR the point through which a single force may be applied in any direction causing all points on the system to accelerate equally

Front 5

Center of Gravity

Back 5

The single point at which, for the purposes of a simple mechanics problem, the force of gravity can be applied to the entire mass

Front 6

Newton's First Law: The Law of inertia

Back 6

An object in a state of rest or in a state of motion will tend to remain in that state unless it is acted upon by a net force

Front 7

Newton's Second Law

Back 7

When an object is acted upon by a net force, the change in that object's state of motion (a) will be inversely proportional to the mass (m) of the object and directly proportional to the net force (F) action upon the object

Front 8

Newton's Third Law

Back 8

For every action, there exists an equal and opposite reaction

Front 9

Newton's Law of Universal Gravitation

Back 9

Every mass in the universe exerts an attractive force on every other mass in the universe, and the force is proportional to both masses m1 and m2 and inversely proportional to the square of the distance r between their centers of mass

Front 10

Normal Force (Fn)

Back 10

The force of the surface pushing back against the gravitational force. Always perpendicular to the surface that applies it.

Front 11

Net force

Back 11

The sum of the forces acting on an object

Front 12

mgsinθ

Back 12

The force due to gravity and the normal force of an inclined plane, pointing directly along the plane

Front 13

mgcosθ

Back 13

The normal force on an incline plane