Unit 4 Vocab Flashcard

Front

The force of gravity acting on an object of mass m, defined as W = mg.

Back

Weight

Front

A situation where the only force acting on an object is gravity.

Back

Freefall

Front

The proportionality constant in Newton's law of universal gravitation.

Back

Gravitational constant

Front

A collection of one or more objects of interest, considering only external forces acting on them.

Back

System

Front

A body at rest remains at rest, or if in motion, remains in motion at constant speed unless acted on by a net external force.

Back

Newton's first law of motion

Front

The measure of the amount of matter in an object, typically measured in kilograms.

Back

Mass

Front

The force that opposes the motion of an object through a fluid or across a surface.

Back

Friction

Front

The force that pulls objects toward each other, proportional to their masses and inversely proportional to the square of the distance between them.

Back

Gravitational force

Front

The rate of change of velocity of an object, which can be caused by a change in speed or direction.

Back

Acceleration

Front

The total force acting on an object, taking into account all individual forces acting on it.

Back

Net force