Saltar navegación

Activa JavaScript para disfrutar de los vídeos de la Mediateca.

PRIMARIA 5º - ENERGY - NATURAL SCIENCE - FORMACIÓN

Ajuste de pantalla

El ajuste de pantalla se aprecia al ver el vídeo en pantalla completa. Elige la presentación que más te guste:

Subido el 24 de noviembre de 2017 por Cp santodomingo algete

443 visualizaciones

Más información Transcripción

Descargar la transcripción

Energy. What is energy? Energy causes matter to change. We use it to carry out work. Plants. They take sun's energy to produce food, oxygen and to grow. 00:00:00
Humans 00:00:15
We use energy from food to work, play, do sports 00:00:17
Industries 00:00:21
They use energy to make products from raw materials 00:00:23
Energy is also used in transport or to light up streets, houses 00:00:27
Forms of energy 00:00:35
There are many different forms of energy 00:00:38
Electrical energy 00:00:41
It comes from the movement of electric charges and also from other forms of energy. 00:00:43
It is called electricity. 00:00:49
Thermal energy. 00:00:53
It is the energy in form of heat. 00:00:55
Kinetic energy. 00:00:58
It comes from the movement of something. 00:01:00
Light energy. 00:01:04
It allows us to see and travel straight away. 00:01:05
Nuclear energy. 00:01:10
It comes from the nucleus of an atom. 00:01:11
Chemical energy. 00:01:16
It is produced in chemical reactions, for example in food, water or fuel. 00:01:17
Energy sources. 00:01:25
There are two types. 00:01:27
Non-renewable. 00:01:31
Renewable. 00:01:33
Non-renewable. 00:01:35
They are on Earth in limited amounts. 00:01:37
They run out as we use them. 00:01:41
Oil. We use it as a fuel, for example in cars and to produce plastics. 00:01:46
Coal. We use it to produce electricity in power plants and to make iron. 00:01:57
Natural gas. We use it as a fuel to produce electricity and for cooking and heating in our houses. 00:02:04
Uranium. We use this metal to produce electricity in nuclear power plants. It's very toxic. 00:02:12
Renewable. We can use them as many times as we want and they do not run out. 00:02:22
The sun. It gives us two types of energy. 00:02:28
Light energy. It helps us to produce electricity with solar panels. 00:02:34
Thermal energy. We use solar thermal collectors to heat water with it. 00:02:40
Wind. Wind energy. It is the air moving. It makes kinetic energy and with the help of wind turbines we produce electricity. 00:02:46
Water. Hydraulic energy. We use the water in reservoirs to move electric generators and produce electricity. 00:02:57
Heat, thermal energy. It is a form of energy that moves from a hotter object to a colder one. 00:03:06
There are two types of sources of heat, natural, the sun or lava. 00:03:15
Artificial, a heater, a light bulb, a good fire. 00:03:22
Heat can change matter. 00:03:28
When an object absorbs heat, it gets warmer and expands, becomes bigger. 00:03:30
Water is an exception. When it gets warmer, evaporates. 00:03:38
When an object emits heat, it cools down and contracts, becomes smaller. 00:03:44
Water is an exception. When it cools down, it becomes ice, which occupies more space than liquid water. 00:03:50
Temperature. It is the measuring of heat in an object. We measure it with a thermometer. 00:03:58
There are two types of thermometers. Analog thermometer and digital thermometer. 00:04:09
Light. It is a form of energy produced by luminous objects. 00:04:16
It can come from a natural object, for example, the sun. 00:04:22
Or from an artificial object that needs electricity to produce it, for example, a light bulb. 00:04:28
Light affects things in different ways. 00:04:35
A transparent material allows all the light to pass through. 00:04:38
A translucent material lets part of the light pass through. 00:04:42
An opaque material does not let light pass through, and you cannot see the other side. 00:04:48
Autor/es:
CEIPS SANTO DOMINGO
Subido por:
Cp santodomingo algete
Licencia:
Reconocimiento - Compartir igual
Visualizaciones:
443
Fecha:
24 de noviembre de 2017 - 15:52
Visibilidad:
Público
Centro:
CP INF-PRI SANTO DOMINGO
Duración:
04′ 54″
Relación de aspecto:
4:3 Hasta 2009 fue el estándar utilizado en la televisión PAL; muchas pantallas de ordenador y televisores usan este estándar, erróneamente llamado cuadrado, cuando en la realidad es rectangular o wide.
Resolución:
1024x768 píxeles
Tamaño:
25.61 MBytes

Del mismo autor…

Ver más del mismo centro

EducaMadrid, Plataforma Educativa de la Comunidad de Madrid

Plataforma Educativa EducaMadrid