Physics - Laws of Motion and Gravity

These flashcards cover key concepts from the lecture on the laws of motion and gravity in physics.

First Law of Motion

An object stays at rest or moves at constant velocity unless acted upon by an unbalanced force.

Second Law of Motion

The acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass.

Third Law of Motion

For every action, there is an equal and opposite reaction.

Terminal Velocity

gravity and air resistance are equal

Gravity

An attraction force between any two objects that depends on the mass of the objects and the distance between them.

Weight

The gravitational force exerted on an object, calculated by F*g = m * g.

Mass

the amount of matter in an object

Inertia

objects resistant change in motion

Law of Universal Gravitation

All matter in the universe is attracted to all other matter, calculated by F = G(m1 * m2) / d^2.

Centripetal Force

The force that pulls an object toward the center of a circular path.