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Force and Motion Newton’s First Law 8th Grade Science

Force and Motion Newton’s First Law 8th Grade Science. Goal. Students will be able to explain Newton's first law. Newton's First law.

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Force and Motion Newton’s First Law 8th Grade Science

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  1. Force and Motion Newton’s First Law 8th Grade Science

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

  3. 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.

  4. Unbalanced 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. Unbalanced vs. balanced force

  5. 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.

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

  7. What makes things slow down on their own? Friction Gravity

  8. Inertia-The tendency of a body to resist acceleration; the tendency of a body at rest to remain at rest or of a body in straight line motion to stay in motion in a straight line unless acted on by an outside force. Concept of resistance to change in motion. Tendancy of an object to resist that change in motion. Newton's First Law = Law of Inertia

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

  10. Inertia Depends on Mass

  11. Newton's Law of Inertia

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