ClassX Video Lessons Youtube Channel Smile and Learn English Machines for Kids – Simple and Complex Machines
Hello everyone! My name is Adrian, and I’m the director of a play. Today is a big day because we have a show in less than two hours. We have some tasks to finish, and since we’re in a hurry, we can use machines to help us. Machines make our lives easier by saving us time and energy. For example, a car helps us get to places much faster than walking. That’s why a car is considered a machine.
There are two types of machines: simple machines and complex machines. Cars are complex machines because they have many parts. There are also simple machines that have just one or a few parts. Today, we’ll use simple machines like a lever and a ramp.
We need to move a bench onto the stage, and we can use a simple machine called a ramp. You might have seen ramps before, like the slide at the playground or ramps at skateboard parks. By placing a flat surface at an angle between the stage and the ground, we create a ramp that helps us move the bench up onto the stage easily.
Now, what’s that under the bench? It’s too heavy to lift. Maybe we need another simple machine, like a lever. All we need is a stick and a book. We can place one side of the stick under the bench and balance it on the book. The book becomes the fulcrum, which is the support a lever needs to lift the object on the other end. When we push on one side, it works like a seesaw.
Oh look, it’s my sports sticker! I lost it yesterday, and I’m so happy we found it. Let’s recap: we used the ramp to move the bench up onto the stage, then we created a lever using a stick and a book to lift the heavy bench, and we found my missing sports sticker!
For our next task, we need to move the sun to the other side of the stage and lift it up over the house. We can use a wheel and axle and a pulley. We can use this cart, which has a wheel and axle. When we push the cart, the wheels spin, helping us move the sun across the stage. It’s similar to your bike at home—when we pedal our bike, the wheels spin to move us forward. The bike is a great example of a wheel and axle in action.
Now, to lift the sun, we can make a pulley by looping a rope around the wheel above. We will attach the sun to one side of the rope and pull from the other side. The pulley will help us lift the sun off the ground. Super cool, right?
To summarize, we used the wheel and axle from the cart to move the sun across the stage, then we created a pulley with the wheel and rope to lift the sun to its right place. We did it! These simple machines were really useful: the ramp, the lever, the wheel and axle, and the pulley all helped us move and lift heavy objects, saving us time and energy.
We didn’t use complex machines today, but we use them all the time. Complex machines are made of two or more simple machines, like the ones we saw today, and sometimes even hundreds! Cars, toasters, and washing machines are examples of complex machines. Amazing!
It looks like both simple and complex machines are super useful and important in our lives. Thanks for joining me while we explored machines. Remember, whether simple or complex, machines make our lives easier.
It’s showtime! I have to go. Did you like the video? We have so many more! Subscribe by clicking on the seal, and if you want to keep watching more videos, click on the boxes!
Build Your Own Simple Machine: Gather some household items like a ruler, a small box, and a toy car. Try to create a simple ramp by placing the ruler at an angle on the box. Roll the toy car down the ramp. Can you make the car go faster or slower by changing the angle of the ramp? Discuss with a friend or family member how this simple machine helps move things easily.
Lever Experiment: Find a stick and a small object like a toy or a book. Use a pencil as the fulcrum and try to lift the object by placing the stick under it and balancing it on the pencil. How does changing the position of the pencil (fulcrum) affect how easy it is to lift the object? Try different positions and see what happens!
Spot the Machine: Go on a “machine hunt” around your home or school. Look for examples of simple machines like levers, ramps, wheels, and pulleys. Draw or take pictures of the machines you find. Share your findings with your class or family and explain how each machine makes tasks easier.
Sure! Here’s a sanitized version of the transcript:
—
[Music]
Hello everyone! My name is Adrian, and I am the director of this play. Today is a big day because we have a show in less than two hours. We still have some tasks to complete, and since we are in a hurry, we can use machines to help us. Machines make our lives easier by saving us time and energy. For example, a car helps us reach different places much faster than walking.
That’s why a car is considered a machine. There are two types of machines: simple machines and complex machines. Cars are complex machines because they have many parts. There are also simple machines that have one or fewer parts. We will use simple machines today, such as a lever and a ramp.
We need to move this bench on the stage, and we can use a simple machine called a ramp. I’m sure you have seen them before—think about the slide at the playground or ramps at skateboard parks. Let me show you how it works. By placing a flat surface at an angle between the stage and the ground, we create a ramp that will easily allow us to move this bench up onto the stage.
Now that was fun! Wait, what’s that under the bench? It’s too heavy to lift. Maybe we need another simple machine. How about a lever? All we need is a stick and a book. Let’s take a look. We can place one side of the stick under the bench and balance it on the book. The book becomes the fulcrum, which is the support a lever needs to lift the object on the other end. When we push on one side, it works kind of like a seesaw.
Oh look, it’s my sports sticker! I lost it yesterday, and I’m so happy we found it. Let’s recap: we used the ramp to move the bench up onto the stage, then we created a lever using a stick and a book to lift the heavy bench, and we found my missing sports sticker!
For our next task, we need to move the sun to the other side of the stage and lift it up over the house. We can use a wheel and axle and a pulley. We can use this cart, which has a wheel and axle. When we push the cart, the wheels spin, helping us move the sun across the stage. It’s similar to your bike at home—when we pedal our bike, the wheels spin to move us forward. The bike is a great example of a wheel and axle in action.
Now, in order to lift this sun, we can make a pulley by looping a rope around the wheel above. We will attach the sun to one side of the rope and pull from the other side. The pulley will help us lift the sun off the ground. Super cool, right?
To summarize, we used the wheel and axle from the cart to move the sun across the stage, then we created a pulley with the wheel and rope to lift the sun to its right place. We did it! These simple machines were really useful: the ramp, the lever, the wheel and axle, and the pulley all helped us move and lift heavy objects, saving us time and energy.
We didn’t use complex machines today, but we use them all the time. Complex machines are made of two or more simple machines, like the ones we saw today, and sometimes even hundreds! Cars, toasters, and washing machines are examples of complex machines. Amazing!
It looks like both simple and complex machines are super useful and important in our lives. Thanks for joining me while we explored machines. Remember, whether simple or complex, machines make our lives easier.
It’s showtime! I have to go. [Music]
Did you like the video? We have so many more! Subscribe by clicking on the seal, and if you want to keep watching more videos, click on the boxes!
—
Let me know if you need any further modifications!
