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ENERGY

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Subido el 20 de mayo de 2020 por Rodrigo R.

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Energy. What's energy? When you think of energy, what do you think of? The sun? 00:00:04
Gasoline? Or maybe electricity? All of these are forms of energy, but there are 00:00:42
other kinds of energy too. Energy is all around you. It is the force that allows 00:00:51
things to move and happen. Even when you're asleep or just reading a book, 00:00:57
your body uses energy to make your heart beat, your blood flows and your muscles 00:01:05
move. Energy is ability to do work and a very important part of how we live. Food 00:01:11
gives you energy. There are different forms of energy. There are different 00:01:25
types of energy like light energy, mechanical energy, chemical energy, 00:01:39
Electrical energy and even solar energy. 00:01:44
For example, plants use energy from the sun to grow. 00:01:48
Light energy. 00:01:56
Objects with light, like the sun, have got light energy. 00:01:58
Electrical energy. 00:02:04
Electrical energy makes machines in our homes work. 00:02:06
Mechanical energy. 00:02:14
The wind or objects that move have got mechanical energy. 00:02:16
Thermal energy. 00:02:23
Thermal energy is energy from heat. For example, fire has got thermal energy. 00:02:25
Chemical energy. Chemical energy is stored in fuel, food or batteries. Energy can transform from one form to another. 00:02:35
Energy can be changed from one form to another. 00:02:59
Coal can be burned to make heat or electricity. 00:03:03
Wood also makes heat when it burns. 00:03:09
Think about plants. 00:03:16
The sun gives them energy to grow. 00:03:18
Then we eat them and they give us energy to do sport. 00:03:22
In a toaster, electrical energy transforms into thermal energy. 00:03:27
In a food mixer, electrical energy transforms into mechanical energy. 00:03:43
In a car, chemical energy from petrol transforms into mechanical energy when the car moves. 00:03:53
Electricity 00:04:09
Electricity is the most popular form of energy. 00:04:11
Hydroelectric power plants use mechanical energy from water to produce electricity. 00:04:19
Climate farms use mechanical energy from winds to produce electricity. 00:04:28
Solar power plants use energy from sunlight to produce electricity. 00:04:37
Thermal power plants use coal, petroleum or natural gas to produce electricity. 00:04:45
Electricity is transported along metal cables. 00:04:56
Electricity is used in homes, in factories, also in means of transport. 00:05:02
Autor/es:
RODRIGO RENEDO GALLO
Subido por:
Rodrigo R.
Licencia:
Todos los derechos reservados
Visualizaciones:
144
Fecha:
20 de mayo de 2020 - 19:47
Visibilidad:
Público
Centro:
Sin centro asignado
Duración:
05′ 20″
Relación de aspecto:
1.78:1
Resolución:
1280x720 píxeles
Tamaño:
27.93 MBytes

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