Saltar navegación

Activa JavaScript para disfrutar de los vídeos de la Mediateca.

SIMPLE MACHINES - Contenido educativo

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 31 de mayo de 2022 por Maria Rocío E.

133 visualizaciones

Simple machines for second graders

Más información Transcripción

Descargar la transcripción

Machines. Imagine you want to squeeze some lemonade. What takes less effort? To squeeze it by hand or to use a squeezer? And if you want to dig a hole in the ground, what takes less effort to do it by hand or to use a spade? 00:00:00
Now, look at this man. He's asking himself, how can I make this work easier? How can he lift the boxes up to the truck, up to the lorry, with less effort? 00:00:26
Mm-hmm. He can use a ramp. Look, this man is pushing the box onto the ramp. 00:00:43
Now, machines are things that make our work easier because we use less effort. 00:00:54
For example, instead of squeezing a lemon by hand, we can use a squeezer. 00:01:03
Or instead of lifting the boxes onto the lorry, we can use a ramp. 00:01:07
Now, simple machines like these ones, they don't use any batteries or any electricity. 00:01:12
The ramp, the spade and the squeezer, they don't use any electricity or batteries. 00:01:21
These simple machines are the ramp, the pulley and the lever. 00:01:30
Let's see more about the ramp. 00:01:36
We use it to raise and lower objects easily. 00:01:39
For example, I can go down the slide, I can go up and down the staircase. 00:01:44
This is a ramp that has been broken into little steps. 00:01:51
Or I can use a screw, a pulley. 00:01:55
It's a wheel with a rope and we use it to lift heavy objects. 00:02:00
Look, I can pull down the rope and this object goes up. 00:02:06
I can use it in a well, or the zip line, or the drying line. 00:02:10
The lever. It's a strong bar and we use it to lift and move something heavy. 00:02:15
Look at this man. He's pushing down the bar to lift this heavy stone. 00:02:23
And it's the same process for the seesaw, the spoon or the catapult. 00:02:29
Now, complex machines are made of many parts. Look this one. 00:02:35
This bike has got a lever, a pulley and another lever. 00:02:39
Can you identify the simple and complex machines in this picture? 00:02:44
Goodbye. 00:02:51
Idioma/s:
en
Autor/es:
Rocío Eizaguirre Fernández-Palacios
Subido por:
Maria Rocío E.
Licencia:
Reconocimiento - No comercial - Sin obra derivada
Visualizaciones:
133
Fecha:
31 de mayo de 2022 - 23:11
Visibilidad:
Público
Centro:
CP INF-PRI MANUEL BARTOLOME COSSIO
Duración:
02′ 56″
Relación de aspecto:
1.57:1
Resolución:
1132x720 píxeles
Tamaño:
19.48 MBytes

Del mismo autor…

Ver más del mismo autor

EducaMadrid, Plataforma Educativa de la Comunidad de Madrid

Plataforma Educativa EducaMadrid