Science Vocabulary Nº1

Force: a push or pull exerted by one object on another.

Friction: a force that opposes the motion of an object in contact with a surface.

Drag Force: a force that opposes the motion of an object through liquid or gas.


Gravity: a force of attraction that exists between all objects with mass.

Net Force: the combined effect of all the forces acting on an object.

Balanced forces: forces that do not cancel each other out when acting togather on a single object.

Inertia: the tendency of an object to oppose a change in motion.

Momentum: The mass of an object multiplied by its velocity.