Newton's Law-Princeton AP Physics I

Pulleys

devices that change the direction of the tension force in the cords that slide over them.

magnitude

Forces are represented by vectors; with ________ and direction.

forces

interaction between two bodies, a push or a pull

Newton’s first law

an object with continue in its state of motion unless compelled to change by a force impressed upon it

Law of Inertia

property of objects, their natural resistance to changes in their state of motion (measured in mass)

Newton’s Second Law

predicts what will happen when an unbalanced force does act on an object

Newton’s third law

to every action, there is an equal, but opposite reaction

Normal force

the component of the contact force that’s perpendicular to the surface

Friction force

The component of the contact force that’s parallel to the surface

Static friction

results from the weak electrostatic bonds formed between the surfaces when the object is at rest

Kinetic (sliding) friction

less than the static friction force

inclined plane

also known as a ramp, is a flat supporting surface tilted at an angle, with one end higher than the other.