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FORCE AND MOTION

FORCE AND MOTION. OCS Applied Science Mrs. Bonifay. Some Words to Know……. Force = any push or pull on an object Motion = any movement or change in position or place Friction = a force that acts against moving objects

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FORCE AND MOTION

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  1. FORCE AND MOTION OCS Applied Science Mrs. Bonifay

  2. Some Words to Know…….. • Force = any push or pull on an object • Motion = any movement or change in position or place • Friction = a force that acts against moving objects • Inertia = the tendency of an object to resist change to its state of motion • Newton = a measure of force (Named for Sir Isaac Newton)

  3. Sir Isaac Newton • Sir Isaac Newton is well-known for his three laws of motion. • Some of you may remember Newton as the man who discovered gravity when an apple dropped on his head (or so the story goes!).

  4. LAW 1 • An object moving in a straight line will keep moving in a straight line, unless an outside force is applied to it. Also, an object at rest (not moving) will stay at rest. • Inertia is the word for law 1.

  5. LAW 2 • Force will cause a change in the motion of an object. The change in motion depends on the amount of force and the mass/weight of the object. • Greater force is required to move objects with more mass.

  6. LAW 3 • For each action, there is an equal and opposite reaction.

  7. Fun with Force and Motion • One of the best places to observe Newton’s Laws of Motion is an amusement park. Can you name some things that might be examples?

  8. Roller Coasters • Newton's first law of motion applies to both objects in motion and objects at rest. Objects in motion have inertia because they want to remain in motion. For example a roller coaster has inertia. When it starts a drop it wants to continue moving in the same direction at a constant speed. It doesn't however because the tracks act as an outside force and change the roller coaster car's direction • http://www.youtube.com/watch?v=0WpNSImh6Z8

  9. Bumper Cars • Newton’s third law of motion comes into play on the bumper cars. This law, the law of interaction, says that if one body exerts a force on a second body, the second body exerts a force equal in magnitude and opposite in direction on the first body. It's the law of action-reaction, and it helps to explain why you feel a jolt when you collide with another bumper car. • http://www.youtube.com/watch?v=oNRNl8jtVk0&feature=related&safety_mode=true&persist_safety_mode=1&safe=active

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