Center of Gravity | Mediateca de EducaMadrid

My project is a study of the center of gravity. 00:00:00

The center of gravity is the imaginary point where the gravity of the whole body acts. 00:00:04

It can be inside or outside the body. 00:00:10

The center of gravity is closely related to the stability and the balance of the bodies 00:00:14

and depends on the base of support. 00:00:20

If the gravity line falls into the base of support, the body is stable. 00:00:23

but if the gravity line falls out of the base of support, the body falls off. 00:00:28

In the human body, the center of gravity moves at the same time that we move, 00:00:34

being able to be outside the body in certain positions. 00:00:40

This is very important for athletes. 00:00:45

In gymnastics, for example, balance and stability are very important. 00:00:48

The larger the base of support and the lower the center of gravity, 00:00:52

the body is more stable and the change of direction improves. In contact sports, stability 00:00:59

is very important so that the rival does not knock you down. 00:01:06

Your center of gravity is here, so if you move it would move, like this, like this, 00:01:11

it always moves. And if you are straight, if someone pushes you, you will fall down 00:01:17

because you won't have very much stability. 00:01:27

So if you separate your feet and bend your knees, 00:01:32

if someone pushes you, you won't fall down 00:01:36

because your center of gravity is lower and you will have better stability. 00:01:39

In each sport, the center of gravity is used differently. 00:01:48

The gymnasts are very sure to have the center of gravity very low 00:01:52

very low and to be very stable. In high jump the athletes are very tall and with 00:01:56

legs very long to be able to take out the center of gravity outside the body. 00:02:01

For example, the first booty flop. For this experiment we will try to get a needle 00:02:07

vertical by putting weights in its lower part. We will use a needle, a foam rubber ball, 00:02:15

8 pom-poms and 2 chopsticks. 00:02:22

Now we finish. We cut our bottom with the needle and the 2 chopsticks with the 4 pom-poms each one. 00:02:26

We are going to see if it stands. 00:02:34

It stands because the center of gravity is lower than the base of support and the stability is better. 00:02:37

It always stands. 00:02:44

Thank you. 00:02:53

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