Shadowing Practice: Friction and Gravity | MightyOwl Science | 3rd Grade - Learn English Speaking with Video
Elige un modo de práctica
Cada modo abre una sala de práctica a pantalla completa.
79 oraciones
Si las oraciones son demasiado cortas o largas, haz clic en Editar para ajustarlas.
1
Hello, this is Mighty Owl.
2
Can you think about a time when you were riding your bike and you applied the brakes?
3
The bike slowed down, right?
4
Well, did you ever wonder why?
5
Here's the answer.
6
There are forces around us that cause changes to the motion of objects.
7
Let me explain.
8
A force that opposes motion is called friction.
9
It has the power to slow things down.
10
Friction is present wherever two surfaces rub over each other, such as using the brakes on a bike to stop or to slow down.
11
When you use the brakes on your bike, the brake pads apply friction to the tires, and this friction slows down the motion of the bike.
12
Think about riding your bike down a hill and how important friction is.
13
Right?
14
Friction is a force that pushes against an object to slow its motion.
15
When you're riding your scooter, for example, you drag your foot on the ground to slow it down or even stop the scooter.
16
You may have used friction in your life without even realizing it.
17
But why does friction even exist?
18
Well, friction occurs because no surface is 100% perfectly smooth.
19
Rougher surfaces like grass create more friction.
20
Have you ever tried to roller skate on grass?
21
It's pretty difficult.
22
You might even drip and fall.
23
But how about roller skating on the sidewalk in front of your house?
24
Well, that would be easier because the sidewalk is smoother than the grass, and therefore there's less friction.
25
You can see examples of friction all around you.
26
When you write with a pen, the frictional forces between the pen
27
and the paper cause some of the ink particles to stick to the surface of the paper.
28
Have you ever rubbed your hands together to keep warm?
29
The friction between your skin causes some of the energy of motion to be converted into heat.
30
Before matches were invented, people used to rub two sticks together to start a fire.
31
Just be careful if you decide to try that one out yourself.
32
Now the next time you walk around, think about your feet pushing off the ground.
33
You're applying frictional force.
34
But you might want to be careful if you're walking on an icy sidewalk sidewalk, it can get tricky because it's quite smooth and there isn't much friction for your feet to use as a grip.
35
If you slip and fall, well, that's another force entirely.
36
In fact, the force that pulls things down to the center of the earth is called gravity.
37
That's why when you jump up from the ground, you fall back no matter how hard you try to stay up in the air.
38
Wait a What about astronauts jumping on the moon and slowly falling down?
39
Well, gravity also exists on the moon, but it's not as strong as it is on the Earth.
40
That's why astronauts can jump higher and fall back down more slowly, because the Moon is much smaller than our planet, and its gravity is less.
41
Gravity is also what holds the Earth
42
and all the rest of the planets in our solar system in their orbits around the Sun.
43
Thank goodness for that!
44
or else our Earth would spin away from the sun and float out into outer space.
45
So to sum up everything so far, gravity is a pulling force that keeps us on the ground.
46
Without it, we would all be floating around in the air.
47
Now that might sound great, but can you imagine if there was no gravity on Earth?
48
You wouldn't be able to run, lay in your bed, or even play basketball.
49
Without gravity, if you kicked a ball, It would fly away in space and it would never come back.
50
Now you can't see or touch gravity, but it's always there.
51
In fact, no matter how heavy or light an object is, gravity will still pull it back down to the ground.
52
You can climb up a ladder and drop a watermelon, a feather, or a ball.
53
It doesn't matter.
54
They will all still fall back down to the ground.
55
Imagine for a second you have a cannon and you shoot a cannonball straight up into the sky.
56
No matter how high it goes, gravity will pull it back down to the ground.
57
But what if you threw a ball away from you?
58
Yep, gravity will also pull it back to the ground.
59
The force of gravity brings things down no matter what direction you throw them.
60
Wow, you know so much about forces now.
61
But maybe something you didn't know?
62
All of them in fact work together.
63
Take a look at what I mean.
64
Imagine you push a ball down a ramp.
65
The push gets the ball rolling.
66
Gravity pulls the ball down the ramp.
67
Friction pushes back and slows the ball's motion.
68
At the bottom of the ramp, the ball bumps into a wall.
69
The wall pushes back on the ball and stops it from rolling forward.
70
Well there you go!
71
All the forces we talked about do really work together in real life.
72
Two new forces from today, friction and gravity.
73
The force that opposes motion is called friction, and it has the power to slow things down.
74
The factors that affect friction are the roughness of the surfaces and the force between the two objects.
75
When you drop something on the ground, it falls because of gravity.
76
Gravity is a pulling force that pulls things down to the ground.
77
I think that's enough about forces for today.
78
See you in the next video lesson.
79
Thank you.
Descargar app
Todo lo que necesitas para hablar con fluidez
Pronunciación con IAEvalúa cada oración
Práctica de IPADomina cada sonido
VocabularioConstruye tu banco de palabras
Juego de vocabularioAprende mientras juegas
✨ Recomendar Video
A24
35 oraciones
Forces and Motion – Magnitude and Direction
KidsTeensHigh School Students
A23
53 oraciones
What If We Lost GRAVITY for 5 Seconds? | Gravity | Space Video | Dr Binocs Show | Peekaboo Kidz
KidsTeensDaily Conversation
A21
35 oraciones
Introduction to Friction for Children - Friction for Kids: FreeSchool
KidsDaily Conversation
A21
9 oraciones
States of Matter #shorts #ngscience
KidsTeensHigh School Students
A29
53 oraciones
5-Minute English Conversation Practice: Health and Exercise (Healthy Habits)
KidsTeensDaily Conversation
A240
42 oraciones
Greenhouse Gases | Science for Kids
KidsTeensHigh School Students
A22
45 oraciones
The Great Escape: Crash Course Kids #13.1
KidsTeensDaily Conversation
A22
204 oraciones
Unit 9: THE BLUE SKY
KidsTeensDaily Conversation
A22
131 oraciones
Oxford Read and Discover Level 2 – Your Body - Read along with highlighted text
KidsTeensDaily Conversation
A26
97 oraciones
Used To and Would
KidsTeensDaily Conversation
A114
84 oraciones
Why Are We Becoming More Easily Distracted | Level A1 | English shadowing
KidsTeensHigh School Students
A22
69 oraciones
What is ACID RAIN? | Acid Rain | Dr Binocs Show | Kids Learning Video | Peekaboo Kidz
KidsTeensHigh School Students
Vocabulario y notas de pronunciación para esta lección
Esta lección de conversación de nivel A2 se basa en el vídeo “Friction and Gravity”. Las palabras que más se repiten: friction, gravity, force, ground, ball. Este vídeo tiene 79 frases y 938 palabras para practicar shadowing. La parte hablada dura 5:31. El hablante habla a un ritmo natural de unas 170 palabras por minuto, cercano a una conversación cotidiana. El 83 % de las palabras está entre las 3.000 más comunes del inglés; conviene repasar el resto antes de empezar. 12 de sus 79 frases son preguntas, así que sirve para practicar la entonación de las preguntas y las respuestas cortas.
Vocabulario clave de este vídeo
15 palabras del vídeo que vale la pena aprender, con su pronunciación y significado:
| Palabra | Pronunciación | Significado |
|---|---|---|
| friction sustantivo | /ˈfɹɪkʃən/ | fricción |
| gravity sustantivo | /ˈɡɹævɪti/ | gravedad |
| sidewalk sustantivo | /ˈsaɪdwɔk/ | acera, andén |
| grass sustantivo | /ɡɹɑːs/ | pasto, hierba |
| brake sustantivo | /bɹeɪk/ | freno, arretranca |
| roller sustantivo | /ˈɹoʊlɚ/ | rodillo |
| float verbo | /fləʊt/ | flotar |
| oppose verbo | /əˈpoʊz/ | oponer, salir al encuentro |
| skate sustantivo | /skeɪt/ | patín |
| astronaut sustantivo | /ˈæstɹəˌnɔt/ | astronauta |
| scooter sustantivo | /ˈskuːtə(ɹ)/ | patineta, patín del diablo |
| lesson sustantivo | /ˈlɛs.ən/ | lección |
| occur verbo | /əˈkɜː/ | ocurrir |
| dragon sustantivo | /ˈdɹæɡən/ | dragón, guiverno |
| spin verbo | /spɪn/ | girar, rotar |
Phrasal verbs que vas a escuchar
| Palabra | Significado |
|---|---|
| fall back verbo | retirar, retroceder |
| slow down verbo | desacelerar, decelerar |
| sum up verbo | sumar |
| walk around verbo | deambular |
Frases que vale la pena repetir
Frases cortas y completas del vídeo que puedes reutilizar en la conversación diaria:
- Have you ever tried to roller skate on grass?
- Have you ever rubbed your hands together to keep warm?
- But maybe something you didn't know?
- I think that's enough about forces for today.
Gramática en este vídeo
Las estructuras que más usa el hablante, con las palabras exactas del vídeo:
| Estructura | En el vídeo |
|---|---|
| Voz pasiva be + participio pasado — importa lo que ocurre, no quién lo hace | is called · be converted · were invented |
| Present perfect have/has + participio pasado — una acción pasada que sigue importando ahora | Have you ever tried · Have you ever rubbed |
| Posibilidad con “might / may” might/may + verbo — algo posible pero no seguro | may have · might even drip · might want |
| Comparativos -er than / more … than — comparar dos cosas | smoother than · smaller than |
Pronunciación a tener en cuenta
El hablante usa 8 contracciones y formas reducidas, como you're, can't, didn't. Dilas en su forma corta, tal como las oyes.
- Los sonidos de “th”: smooth /smuːð/, feather /ˈfɛðə/
Sonidos difíciles para hispanohablantes:
- s + consonante al inicio — sin añadir una “e” delante: smooth /smuːð/, skate /skeɪt/, scooter /ˈskuːtə(ɹ)/, spin /spɪn/, slip /ˈslɪp/
- /v/ — no es /b/: los dientes tocan el labio inferior: gravity /ˈɡɹævɪti/, wherever /(h)wɛɹˈɛvɚ/, convert /kənˈvɝt/, invent /ɪnˈvɛnt/
Cómo practicar con este vídeo
- Escucha el vídeo entero una vez sin hablar y anota las palabras que no conoces.
- Empieza a velocidad 0,75×, haz shadowing frase por frase y vuelve a la velocidad normal cuando te resulte fácil.
- Grábate y compara con el original, prestando atención a palabras como friction, gravity, sidewalk.
¿Qué es la Técnica de Shadowing?
Shadowing es una técnica de aprendizaje de idiomas respaldada por la ciencia, desarrollada originalmente para la formación de intérpretes profesionales y popularizada por el políglota Dr. Alexander Arguelles. El método es simple pero poderoso: escuchas audio en inglés nativo y lo repites en voz alta de inmediato, como una sombra que sigue al hablante con solo 1-2 segundos de retraso. A diferencia de la escucha pasiva o los ejercicios de gramática, el shadowing obliga a tu cerebro y músculos de la boca a procesar y reproducir simultáneamente patrones de habla reales. Las investigaciones muestran que mejora significativamente la precisión de la pronunciación, la entonación, el ritmo, el habla conectada, la comprensión auditiva y la fluidez al hablar, convirtiéndola en una de las metodologías más efectivas para la preparación del IELTS Speaking y la comunicación en inglés en el mundo real.