Students will be able to explain Newton's first law.

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Presentation transcript:

Students will be able to explain Newton's first law. Goal 4 Students will be able to explain Newton's first law.

Newton's First law

Newton's First law An object at rest will remain at rest, and an object moving at a constant velocity will continue moving at a constant velocity, unless it is acted upon by an unbalanced force.

Try this at home!

Unbalanced vs. balanced force Can cause an object to start moving, stop moving or changes direction. Result in a net force and cause a change in the object's motion. Balanced Do not change the object's motion. Equal force in opposite directions.

At rest Object not moving WILL NOT move unless an unbalanced force acts on it. Homework will not get done on it's own. Your room will not be cleaned on it's own.

In Motion Object in motion (velocity) will stay in motion. Object in motion (velocity) will stay in motion. Outside force can change it's speed, velocity, or direction.

What makes things slow down on their own? Friction Gravity

Inertia Concept of resistance to change in motion. Tendancy of an object to resist that change in motion. Newton's First Law - Law of Intertia

Inertia Depends on Mass Some objects have more Inertia than others. Empty aquarium vs. Full Aquarium The greater the mass of an object, the greater it's Inertia, the greater the force required to change it's motion.

Inertia Depends on Mass

Newton's Law of Inertia

Students will be able to explain Newton's first law. Goal 4 Students will be able to explain Newton's first law.