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Before you start - Machines and structures
EduBook Organización
- 3249 visitas
Didactic objectives Identify the basic characteristics of electrical current, conductors and insulators. Identify the parts of an electrical circuit and draw a diagram with the correct symbols.…
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End-of-unit evaluation - Machines and structures
EduBook Organización
- 2902 visitas
In this unit we will look at electrical circuits, generators and motors that work by magnetism. We will also look at the machines and tools which help us do our work. Finally, we will look at…
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Self-assessment T10 02 - Machines and structures
EduBook Organización
- 2895 visitas
Complete these sentences with the correct words: Some objects become electrically when we rub one against the other. Electrical current is the flow of through materials. A is needed to create the…
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Learn. Simple machines - Obtaining and using energy
EduBook Organización
- 2769 visitas
Simple machines The most rudimentary machines are called simple machines. They are basic, but they are of great help in performing tasks and transferring energy. The Wheel A wheel is a circular object…
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End-of-unit activities - Machines and structures
EduBook Organización
- 2698 visitas
In this unit we will look at electrical circuits, generators and motors that work by magnetism. We will also look at the machines and tools which help us do our work. Finally, we will look at…
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Self-assessment T10 10 - Machines and structures
EduBook Organización
- 2509 visitas
Are these sentences true or false? The structure of a building must be stable and resistant. The structure of many buildings consists of a system of girders, beams and pillars. The beams form the base…
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Self-assessment T10 08 - Machines and structures
EduBook Organización
- 2426 visitas
Complete the text with the correct words: A is an instrument that we use to make our work easier. We operate tools using our . Humans used , bones and sticks to make the first tools. These included…
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Self-assessment T10 06 - Machines and structures
EduBook Organización
- 2298 visitas
Are these sentences true or false? Levers are compound machines which are made up of three elements: the load,the effort and the fulcrum. In first-class levers, the fulcrum is located between the effort…
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Self-assessment T10 03 - Machines and structures
EduBook Organización
- 2258 visitas
Match the definitions to the terms: A machine that converts another type of energy into electrical energy. A generator which uses magnetism to change kinetic energy into electrical energy. A machine…
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Initial evaluation T11 02 - Machines and structures
EduBook Organización
- 2243 visitas
Decide if each sentence is true or false: Magnets have two poles: a north pole and a south pole. Magnetism is a property that materials that generate heat have. Materials that do not transmit electrical…
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