What I learned This Semester

I have learned a lot this semester in Physics. I have learned about the different ways an object can be weighed and measured. I have also learned how mass is relative to speed. I learned how to find the velocity of an object using equations. I also learned how to find the acceleration, distance, time, and speed of an object. I have learned about two-dimensional kinematics as well. I have learned how to solve for two different dimensions using equations like, Dy = 1/2 AyT(squared) + VoyT. I learned about Newtons laws. I learned that gravity is an acceleration and that weight is a force. I also learned about all of the things that oppose forces in the opposite direction. Examples are friction and another force pulling the object in an opposite direction. I have also learned about momentum and I learned that momentum is conserved. If a moving object was to crash into a stationary object, the object would be transferred from the moving object to the still object. Finally, the last thing that I have learned this semester was energy. I learned that energy is also conserved. Work is any change in energy. I also learned how to find power. This is what I have learned this first semester, and I have another semester of learning of physics, super fun! ....

This is me at one of my soccer games. I am in the blue and the opponent is in the yellow. As you can see here, I am pushing the defender away from me so that he does not get near the ball. I am also doing work as well. My arm is pushing toward an opposing force that wants to go in the opposite direction. This is type of work is energy. The type of energy that is being produced starts off at kinetic energy because we are both moving, then goes to spring potential energy because I am pushing back on him, and then it goes back to kinetic energy because we are both moving again after this.