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Simple machines
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Simple machines have few or no moving parts.
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There are six simple machines.
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A pulley,
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an inclined plane,
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a screw,
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a wheel and axle,
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a wedge,
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a lever and fulcrum.
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A pulley uses a wheel and a rope to lift or lower an object.
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An inclined plane is a slanting surface that connects a low level with a high level.
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We use it to move objects up or down.
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A screw is a type of inclined plane.
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We use it to hold things together or to lift objects.
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A wheel is a circular object that turns around an axle.
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We use it to lift or move objects.
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A wedge is an object with at least one slanting edge.
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We use it to cut objects.
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A lever is a rigid bar with a support called a fulcrum.
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We use it to lift or move objects.
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- Subido por:
- Maximino R.
- Licencia:
- Reconocimiento - Compartir igual
- Visualizaciones:
- 185
- Fecha:
- 18 de abril de 2020 - 19:58
- Visibilidad:
- Público
- Centro:
- IES ALFREDO KRAUS
- Duración:
- 02′ 03″
- Relación de aspecto:
- 1.39:1
- Resolución:
- 836x602 píxeles
- Tamaño:
- 4.17 MBytes