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Understanding Newton's Laws: Inertia, Gravity, and Momentum

Explore Newton's First, Second, and Third Laws along with topics on inertia, gravity, projectile motion, and momentum. Learn about mass, weight, acceleration of gravity, and how forces affect objects' motion.

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Understanding Newton's Laws: Inertia, Gravity, and Momentum

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  1. Chapter 12 TEST Review Newton’s First/Second Law Inertia Gravity Projectile Motion Newton’s Third Law Momentum

  2. Newton’s First Law • Applies to what kind of objects ( moving, at rest, or both )?

  3. Inertia • What is it? • Similar to what physical property?

  4. Newton’s Second Law • What is it? • Example: what force is needed to make a 2 kg object reach an acceleration of 5 m/s2?

  5. Newton’s Second Law • Example: A force of 20 N is applied to a 2 kg object. What is its acceleration?

  6. Newton’s Second Law • Example: A force of 20 N is applied to accelerate an object to 2 m/s2. What is the object’s mass?

  7. Mass and Weight • Are they the same? Why?

  8. Acceleration of Gravity • g = 10 m/s2 • Pulls on any object not supported from beneath • Causes objects to orbit Earth

  9. Weight • What is the weight of a 5 kg object (acceleration of gravity is 10 m/s2)?

  10. Gravity • Know how gravity can be change by changing mass or distance involved • Gravity _________ with increased mass? (increase/decrease) • Gravity _________ with increased distance? (increase/decrease)

  11. Projectile Motion • Examples will be given, you determine if it counts as projectile motion or not

  12. Newton’s Third Law • What is it?

  13. Momentum • A 2 kg object is moving at 5 m/s towards the East. What is its momentum?

  14. Momentum • A 2 kg object is at rest. What is its momentum?

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