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SIMPLE MACHINES w/s - Contenido educativo
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Simple machines explaines for first years of Primary. Includes definition and examples of ramp, pulley and lever.
Machines. Imagine you want to squeeze some lemonade. What takes less effort? To squeeze
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it by hand or to use a squeezer? And if you want to dig a hole in the ground, what takes
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less effort? To do it by hand or to use a spade? Now, look at this man. He's asking
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himself how can I make this work easier? How can he lift the boxes up to the truck, up
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to the lorry with less effort? He can use a ram. Look, this man is pushing the box onto
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the ram. Now, machines are things that make our work easier because we use less effort.
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For example, instead of squeezing a lemon by hand, we can use a squeezer. Or instead
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of lifting the boxes onto the lorry, we can use a ram. Now, simple machines like these
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ones, they don't use any batteries or any electricity. The ram, the spade and the squeezer,
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they don't use any electricity or batteries. These simple machines are the ram, the pulley
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and the lever. Let's see more about them. The ram, we use it to raise and lower objects
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easily. For example, I can go down the slide, I can go up and down the staircase. This is
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a ram that has been broken into little steps. Or I can use a screw. The pulley, it's a wheel
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with a rope and we use it to lift heavy objects. Look, I can pull down the rope and this object
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goes up. I can use it in a well or the zip line or the drying line. The lever, it's a
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strong bar and we use it to lift and move something heavy. Look at this man, he's pushing
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down the bar to lift this heavy stone. And it's the same process for the seesaw, the
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spoon or the catapult. Now, complex machines are made of many parts. Look at this one,
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this bike has got a lever, a pulley and another lever. Can you identify the simple and complex
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things in this picture? Goodbye!
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- Idioma/s:
- Idioma/s subtítulos:
-
- Autor/es:
- Maria del Rocio Eizaguirre Fernández-Palacios
- Subido por:
- Maria Rocío E.
- Licencia:
- Reconocimiento - No comercial - Compartir igual
- Visualizaciones:
- 12
- Fecha:
- 28 de julio de 2023 - 12:31
- Visibilidad:
- Público
- Centro:
- CP INF-PRI ROSA LUXEMBURGO
- Duración:
- 02′ 56″
- Relación de aspecto:
- 16:10 El estándar usado por los portátiles de 15,4" y algunos otros, es ancho como el 16:9.
- Resolución:
- 1728x1080 píxeles
- Tamaño:
- 57.49 MBytes
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