position - the exact place an abject is, direction - the way an object faces (north, south, toward), motion - a change in an object's location, distance - how far something travels, speed - how fast or slow an object is moving, relative (position) - comparing and contrasting two objects, gravity - the force that pulls objects toward each other, inertia - the tendency of an object to resist a change in motion, kinetic - the energy an object has due to its motion, pendulum - a device that swings back and forth due to the force of gravity,

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