​Essential questions

​How do unbalanced forces affect an objects motion?

​How are the acceleration, the net force, and the mass of an object related?

​What happens to an object when another object exerts a force on it?

​Newton's first law

​The tendency of an object to resist a change in motion is called inertia

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​Newton's first law of motion states that if the net force acting on an object is zero, the motion of the object does not change.

​in other words, an object remains at rest or in constant motion unless an outside, unbalanced force acts on it.

​Newton's second law of motion

​Newton's second law of motion states that the acceleration of an object is equal to the net force applied to the object divided by the object's mass.

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​Newton's third law of motion

​Newton's third law of motion says that when one object exerts a force on a second object, the second object exerts a force of the same size, but in the opposite direction.