Lift
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We make a simple tool about lift. Principle work of lift is the changes of electrical energy to kinetic energy. From: Cahyo, Firman, Rizki, Putri (SMPN 2 Cileunyi, Bandung, Indonesia)
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Lift
- 2. Subject Matter Definition of Energy Energy is defined as: “the ability to do work”. There are many sources of energy. Without energy, we will not do the work. The strangest thing about energy is that you can’t make it or get rid of it; you can only change it from one type of energy into another. (From: Science for Junior High School, Level VIII)
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- 4. Aim • We make a lift miniature to prove the changing energy from electrical energy into kinetic energy.
- 5. • Wood: 1. For base = 38 cm x 17 cm x 2 cm 2. 2 for pole = 40 cm x 17 cm x 2 cm 3. For roof = 25 cm x 17 cm x 2 cm • Lift model • Electric switch • Cable • Adaptor • String • Plug • Pipe buffer • Nail • Gift paper • Tape • Glue • Hammer • Pliers • Scissor • Cutter • Ruler • Pencil
- 6. Procedure 1. First, prepare the tools and materials. 2. Make a construction from the wood taken as base, 2 poles and roof. 3. Paste up those woods uses nail or glue. 4. Make hole in the roof so that can be entered by the string. 5. Then, the cable attached to the electric switch. 6. One of the cable, attached to the plug. Click here to see the video. 7. And the other one cable again, attached to the adaptor. Then cut the cable and attached to the plug. Tie which use tape. Click here to see the video. 8. Cable available in adaptor, attached to a dynamo that there a pulley.
- 7. 9. After all the cables attached, tie the string on pulley, enter the hole that has been provided and attach to the lift model. Click here to see the video. 10. So that dynamo can attached, use the pipe buffer. 11. If you want beautiful, covered the wood by gift paper. 12. To know the lift can up, plug the plug in the electric socket, press on, on the electric switch. Click here to see the video. 13. If we press off on the electric switch, then the lift is down, this mean the project is complete. Click here to see the video.
- 8. • When the plug plugged in the electric socket and the electric switch is on, the lift up, happen changing energy from electrical energy to kinetic energy. This change happens in dynamo, that cause the lift up.
- 11. • So, we can know to prove the changing energy from electrical energy into kinetic energy with make lift miniature. • The lift can up and down because the movement of dynamo, lighter load and helped from electrical energy.