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Understanding Simple Machines: Work, Force, Friction, and Gravity

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Discover how simple machines make work easier by understanding the concepts of work, force, friction, and gravity! This lesson introduces students to the movement of force through distance and the applications of simple machines in everyday tasks. Through engaging scenarios involving lifting, pushing, and pulling, learners explore how friction can affect movement and how gravity influences objects. Students will also get an opportunity to create their own examples of simple machines, deepening their comprehension of physics in action!

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Understanding Simple Machines: Work, Force, Friction, and Gravity

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Presentation Transcript

  1. Simple Machines do WORK!!! Work, Force, Friction, and Gravity

  2. Work What is it? The movement of a force through a distance.

  3. Mrs. Williams needs to move the Box from point A to point B. This is called work. What could she use to make it easier? .B .A

  4. Force What is it? A push or pull

  5. Mrs. Hall needs to move this chair from desk A to desk b. Can she push it? Can she pull it? What is that called? A B

  6. Friction What is it? Force produced by the rubbing of one thing against another (causes heat).

  7. Mrs. Russell is rubbing her hands together to warm them up. Rubbing them together creates friction which gives off heat. When rubbing two things together it can make it harder to do work. If Mrs. Russell needs to push a stove across the floor, what could make it difficult? Why? What could she use to make the work easier?

  8. Gravity What is it? The natural force that causes smaller objects to move toward the center of the earth.

  9. Mrs. Breland likes to throw her softball up in the air and catch it when it comes back down. Why doesn’t it stay in the air when she throws it up? Mrs. Breland also needs to lift a heavy box up into her truck. What could she use to make the work easier?

  10. Mrs. Bales is walking her baby boy in a stroller. What is she doing? What is she using? What simple machines are making her work easier?

  11. What about the wedge, lever, and screw? • Come up with your own examples!

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