Newton’s 1st Law -Meena

Newtons 1st Law is that all objects at rest will stay at rest unless an external force acts upon it.  All objects will continue their original state of uniform and they will always want to return to that state.  This law can commonly be known as inertia. Inertia and the first law is seen everywhere, a demonstration I saw in class was a video of a rock at rest a person came a long and rolled it down a hill making the at rest pebble to become a pebble in motion soon the external force of friction caused the pebble to return to its natural state, at rest.  This video relates to our high five video because a phone lyed on the ground at rest until I came along using my external strength to pick the phone up.  The phone became “apart” of me so as I moved the phone did so we were both in motion.  In the end my video shows clear evidence of Newton’s 1st law because the phone was not going to move unless I, the external force, lifted it up into motion.

*With no outside force this object will never move. With no outside forces this object will never stop.

-Meena

Law of Conservation of Energy -Meena

The definition of the Law of conservation is that energy cannot be destroyed only transferred or transformed.  Transferring energy is when energy moves to one place to another, such as when you plug a charger in an outlet the electrical energy starts in the outlet then moves through the plug to charge your phone.  Transforming energy is when the energy changes its form, for example kinetic energy turning into thermal energy because of friction.  These transfers and transformations occur when forces act upon a subject.  The simulation of a skater rolling until slowly coming to a stop shows the law of conservation because at first the skater was moving so there for it had kinetic energy but it stopped because the friction acting against it built up transforming the energy to thermal.  That simulation relates to the video of me in the water because I was cold I started rubbing my arms and hands so I produced kinetic energy which transformed into heat energy (thermal).   My video is an example of the Law of conservation because energy is neither destroyed nor created but shown as transformed and transferred.
-Meena

Role of Friction in Our World -Ai Vy

Friction is the resistance when the two surfaces come in contact. Friction plays a significant role in our world. Friction appears in daily situations in both a good and bad way. We are able to walk, run or drive our cars thanks to friction. Vehicles don't stop without friction. However, friction cause the car's engine to work less efficiently, and that's why oil is there to reduce friction between parts of an engine. In the video, friction is shown by the ball being rolled on the tennis court. The ball rolls for a while until it is stopped by friction, or in other words, friction slows it down and by that we don’t have to go too far to get the ball back.
 -Ai Vy

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Kinetic Energy -Karlee

Kinetic Energy is the energy of motion.Something has kinetic energy because it has some kind of motion. Kinetic energy helps us do everything, and is thought as one of the most important energy because we can do so much with it. for example make more different energy with turbines. Whenever something is moving, it has kinetic energy. Kinetic energy comes from potential energy, potential energy to do something, and kinetic energy is that something. Kinetic energy has the ability to do work. Kinetic energy is very powerful because it can overcome many forces, such as gravity. In the video, Ai Vy and Karlee are walking in front of a Church. Walking is a form of kinetic energy because they are in motion.  -Karlee

-Karlee