Are you scientifically literate? Take our quiz

11. Newton's First Law of Motion describes what phenomenon?

Steve Helber/AP
(Read caption)

Inertia: An object not subject to any net external force moves at a constant velocity


Gravitation: Physical bodies attract each other with a force proportional to their mass


Acceleration: The rate of change of a body over time is proportional to the net force acting on it


Kinetic energy: The energy of a body is equal to one half of the product of its mass times and velocity squared

Javascript is disabled. Quiz scoring requires Javascript.