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Force and Motion

Force and Motion. Unit 2. Force. A push or a pull. Inclined plane. A simple machine that is a flat surface with one end higher than the other. Speed. The distance an object moves in a given amount of time. Motion. A change in the position of an object as it is moving. Friction.

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Force and Motion

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  1. Force and Motion Unit 2

  2. Force • A push or a pull

  3. Inclined plane • A simple machine that is a flat surface with one end higher than the other

  4. Speed • The distance an object moves in a given amount of time

  5. Motion • A change in the position of an object as it is moving

  6. Friction • A force that slows down a moving object when it rubs against another object

  7. Magnet • An object that pulls objects made from iron toward it

  8. Pole • One of the two ends of a magnet where the pull is the strongest

  9. Attract • To pull toward- unlike poles on a magnet attract each other

  10. Repel • To push away-like poles on a magnet repel each other

  11. Magnetic Field • All of the invisible magnetic forces around a magnet

  12. Gravity • A force that attracts objects to each other. The force of gravity holds you to Earth.

  13. Simple Machine • A machine that makes work easier • Has few or no moving parts

  14. Wedge • A simple machine made of two inclined planes joined together • Example: an ax

  15. Lever • A simple machine made of a bar that moves on a fixed point • Example: a crowbar

  16. Pulley • A simple machine made up of a wheel with a rope around it • Lifts heavy objects

  17. Wheel and Axle • A simple machine made up of a wheel with a rod going through the center • Example: skates, cars

  18. Screw • A simple machine with ridges or threads that wrap around a rod • Examples: a drill

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