Momentum Applied to a Football Game

Hello everyone!!!

First of all, what is Momentum? Momentum is a measure of an object's inertia of motion. An example of momentum is when a big truck rolls down a hill, and then a little car rollsdown a hill. The truck goes faster because it had a larger mass which gave it more momentum. P stands for momentum. Isaac Newton called this property of an object its "quantity of motion." Last Tuesday 15th of October, we went to play football on physics class. It was very astonishing for us because our teachers don't take us out that often. It's fun to play with friends and not to have classes. While we were playing football Mr. José Popoff went back to the class and wrote this on the board:

By:  Mr.José Popoff

When we came back to our class we were disappointed because we had homework to do. We were so excited of going that, we forgot we didn't have a ball. When you play football or any other sport, you can find momentum. Now you make ask how do you find it? Well, you get momentum by applying the formula p=mv that means mass times velocity. What is velocity? Velocity is the time rate of change in position in a specified direction. For example, momentum is applied when a football player is running with a ball and another player comes does a tackle to the player, if you have more mass or a greater velocity that means you have a greater momentum than the other player. We have the momentum of the ball too, we obtain it by getting the mass of the ball and the velocity. Since an object´s mass is usually constant, a change in momentum is almost always a change in velocity that is, an acceleration. Therefore, F=p/t that is change in momentum over change in time, force is a push or pull on a system. Force is very important for momentum and impulse is a force that is like momentum. In a game you force to kick the ball, to tackle a player, to stop ball you need it for everything in football. Impulse is an unbalanced force of an object changes its momentum. The formulas for impulse are I=Ft that is force times change in time. Impulse is a change of momentum, and momentum is mass times velocity, so any real-life situation where there's achange of velocity (acceleration) there's an impulse. Examples of impulse are: a bat hitting a ball is a great example, the engine of a car accelerating it, an oar accelerating a boat, a rocket engine, and so on.

All this terms and the planet wouldn´t exist without God, our savior the one we own our lives. He made man in his image and likeness. So all this is related with God, he gives us knowledge, wisdom and blessings. Without knowledge Newton wouldn't have discovered the "laws of motion" or other theories  wouldn't work. For me God is my creator, path and my inspiration to be a successful man in the future. God relates with all of us in this planet and otherwordly things.

Torque

First let´s start with, what is torque ?

What is Torque ?

Torque, moment or moment force, is the tendency of a force to rotate an object about an axis. Torque can be thought as a twist to an object. The magnitude of torque depends of three quantities: the force applied, the lenght of the lever arm, and the angle between the force vector and the lever arm. In symbols will be:

T= rF or T=rFsin times theta

For our physics class we did a small lab activity. We used a ruler, a clip, some metric masses and a balance. We learned what is torque, how does it work, and how can we apply it's formula. 

First we set up the torque balance and we placed a clip for it to balance. Then we measure two masses of the same weight and we were trying to balance it. So we moved that was lighter to the center for it to balance.

Here are the results:

Then we did some other activities. First we spin a wheel and we were standing on a rotating board, it was very cool because the more you spin the wheel the more you will move. I happens because the wheel was exerting a force and our body acquired angular momentum, and because an external torque changes an angular momentum of a rigid body.

Then we had fun with the gyroscope because it looked like honduran tops or beyblades. What is a "gyroscope" ? 

A gyroscope is a device for measuring or maintaining orientation, based on the principles of angular momentum. So it deals with angular momentum too. Angular momentum is a vector quantity that represents the product of a body's rotational inertia and rotational velocity about a particular axis.

The application of gyroscopes include inertial navigation system where magnetic compasses would no work or would not be precise enough, or for the stabilization of vehicles like radio controlled helicopters or unmanned aerial vehicles. 

At the end we went to pre-school, to the merry go round. We saw the moment of inertia of the merry go round and the force applied. It was very hard because you had to be almost laying down and then when it started you had to get up and bring your body to the center. 

It was a great physics class and a very fun activity, I hope you enjoy this post. :D

Circular Motion Lab Report

Here you can see my lab report for physics class about circular motion.

Circular Motion Lab Report

My 10 favorite things

1. My most favorite things are Video Games.

2. My favorite movie star is Vin Diesel.

3. My favorite singer is Farruko.

4. My favorite place I will like to travel would be Bora Bora.

5. My favorite car is the Bugatti Veyron.

6. My favorite sport is Karate Do.

7. My favorite soccer team is FC Barcelona.

8. My favorite soccer player is Lionel Messi.

9. My favorite food is Pizza. 

10. My favorite brand is Nike. 

Buchteln

This is a video in I am doing Buchteln a recepie from Austria.

My Supercar

Hi, Hola, Ciao, Guten Tag, 你好, привет, bonjour, dia duit, γεια σας, שלום !!!!!! 

Today I am going to talk to you about my dream car. I have many favorites cars like the 

Lamborghini Aventador

 Lexus LFA

Mclaren Mp4-12c  

Mustang Boss Laguna Seca 

I like all of them, because of their qualities. I like the "Lambo" because of his speed, I like the "Lexus" because of the sound. I love the "Mclaren Mp4-12c" because of his style and I like the "Mustang Boss Laguna Seca" because of his acceleration and his good looking. And the best car of all, that has all the qualities and it is my dream car iiiiiiiiiiiissssss the 

"Bugatti Veyron Super Sport 16.4"

is the fastest car in world. I will be very happy if in the future that car could be mine.

Digital footprints

So, how are you this morning, afternoon or evening ?

Well, Hi I am glad to be here writting on my blog and very happy, because I am almost going out from school. 

Well in my free time sometimes I like to play ps3 with my brother or with my bestfriend (Antonio Rodriguez). Sometimes I play soccer or what we call here in Honduras "Fútbol". I don't like to write or to do a speech or things related to that I hate them. What I do is I hangout with my friends and most of the time we do crazy stuff.

Social Media, the first one I had was "Windows Live Messenger or Hotmail" and in those times it felt cool, because you can talk with 3 or more friends at the same time and if your friend didn't answer you click on buzz and your friend heared "bbuuuuuzzz" or  somthing like that. Then "Hi5" came up but it was not so amazing so no one used it, but then "Facebook" came up and that was amazing, because it had games and the design was great, you could post status of whatever you wanted. Then when I was on 9th grade my science teacher taught us about twitter because I had heard about it but I didn't like, but with I had to use it to chat with kids of other countries and now I like it but I don't tweet that much. Now in tenth grade I found "Blogger" and I like it and I like to see how many viewers I have every week.