Front

A physical phenomenon where masses exert a pull on each other from a distance; the objects are pulled toward each other's center of mass.

Back

gravity

Front

A physical phenomenon that includes the attraction between iron and a magnet, is exhibited by both magnets and electric currents and is a type of energy characterized by fields of force.

Back

magnetism

Front

The force that a surface applies to an object that it is in contact with, preventing the object from passing through the surface.

Back

normal force

Front

detectable events that are observed through the senses or technology; can be explained through scientific laws, ideas, principles, and theories

Back

phenomena

Front

The numerical size of a quantity.

Back

magnitude

Front

The sum of all the forces acting on an object within a system; includes both magnitude and direction

Back

net force

Front

A push or pull between two objects

Back

force

Front

An act, process, or instance of changing position or location

Back

motion

Front

A measurement of the change in motion of an object (speeding up, slowing down, or changing direction)

Back

acceleration

Front

The amount of matter in a substance, measured in grams or kilograms.

Back

mass