Forces and Their Definitions

Front

Force

Back

A push or pull

Front

Applied Force (Fₑ or Fₐ)

Back

The push or pull given to an object that causes the object to move

Front

Normal Force (Fₙ)

Back

Force exerted by a surface on an object resting on that surface

Front

Frictional Force (friction) (Fₜ)

Back

Force that opposes motion and acts in a direction opposite to applied force

Front

Gravitational Force (gravity) (1st fundamental force)

Back

Force of attraction between objects

Front

Strong Force (2nd fundamental force)

Back

Holds together the protons and neutrons

Front

Weak Force (3rd fundamental force)

Back

Force responsible for radioactive decay

Front

Electromagnetic Force (4th fundamental force)

Back

Force that includes both electricity and magnetism

Front

Electrical Force

Back

Opposite charges attract and same charges repel.

Front

Magnetic Force

Back

Magnetic-opposite poles of a magnet attract; same poles repel.