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Electricity & Inventions (I)

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Subido el 18 de mayo de 2020 por Cp castilla alcobendas

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Hello everyone! We are going to begin learning about electricity and inventions. 00:00:00
Matter and electricity. Remember, matter is anything that has mass and takes up space. 00:00:10
All matter is made up of microscopic atoms. This means the atoms are very, very small. 00:00:25
Atoms have a nucleus in the center and electrons that move around the nucleus. 00:00:40
The nucleus is made up of protons and neutrons. 00:00:57
Protons have a positive electric charge. 00:01:10
You can remember this by thinking proton positive. 00:01:17
Both words begin with the letter P. 00:01:22
So protons have a positive electric charge. 00:01:25
Neutrons have no electric charge. 00:01:33
You can remember this by thinking neutrons, neutral. 00:01:38
So a nucleus, the nucleus is made up of protons and neutrons. 00:01:43
Protons have a positive charge. 00:01:48
Neutrons have no charge. 00:01:51
Electrons fly around the nucleus. 00:01:56
Electrons have a negative electric charge. 00:02:01
Electricity is formed when an electron moves from one atom to another atom. 00:02:07
Okay, static electricity. 00:02:20
Static electricity is the movement of electrons between two materials. 00:02:29
This can happen when we rub them together. 00:02:42
Electric charges can be positive or negative. 00:02:48
Objects that are positively charged have more positive charges. 00:02:55
Objects that are negatively charged have more negative charges. 00:03:08
Objects that are neutral have an equal number of positive and negative charges. 00:03:17
Electric forces. 00:03:31
Charged objects can exhibit attraction or repulsion. 00:03:33
Objects with opposite charges attract each other. 00:03:52
So a positive and a negative object will come together. 00:04:00
They will show attraction. 00:04:07
You can see in this picture, the positive and negative balls are moving toward each other. 00:04:08
Repulsion. 00:04:21
Objects with like charges repel each other. 00:04:23
So, two objects with positive charges will move away from each other. 00:04:30
they show repulsion. Objects with two negative charges also show repulsion. So objects with 00:04:38
like charges show repulsion. Okay, that's all for now. Goodbye! 00:04:50
Autor/es:
IDOYA PÉREZ MARTÍN
Subido por:
Cp castilla alcobendas
Licencia:
Reconocimiento - No comercial - Compartir igual
Visualizaciones:
112
Fecha:
18 de mayo de 2020 - 16:12
Visibilidad:
Público
Centro:
CP INF-PRI CASTILLA
Duración:
05′ 01″
Relación de aspecto:
1.78:1
Resolución:
1136x640 píxeles
Tamaño:
135.32 MBytes

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