Energy weekly blog

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Summary:

        Potential energy is energy that is stored by something and it is when the energy is not being used yet and the object is not in motion. Kinetic energy is energy that is the energy of motion and it is when something is moving and is no longer potential energy. Potential energy becomes kinetic energy when the object stats to go into motion and when the stored energy that the object had is released. Energy can not be formed of destroyed but it can change form according to the law of conservation of energy. The unit that you have to use while talking about energy is joules and to find potential energy you would be the objects weight times the height. To find kinetic energy you would have to do 0.5 times the mass times the speed squared.

S&EP: SP1:

        This week we had to ask what the difference between kinetic and potential energy is and how to make one into the other. We found that potential is just the stored and the possible energy while kinetic energy is when the object is moving and the potential energy is released. To potential energy into kinetic energy you have to get the object to releases the potential energy aka move the object and put it into motion. One example is when a rock is on the side of a cliff but it has not fallen or rolled down but if it got pushed and rolled or fell down then it would be kinetic energy while it is in motion.

Acceleration weekly blog

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Summary: Acceleration is how fast somethings speed or velocity changes. When you are speeding up you are accelerating, when you are at a constant speed you are not accelerating and when you are slowing down you are decelerating. An acceleration graph shows you the velocity of a certain object and one certain time, it tells you if something is staying at a constant speed, speeding up or slowing down. To make an acceleration graph you have to have speed as the y-axis and have time as a the x-axis, then you have to make the line and its slopes that represent how much something is accelerating at certain times.

S&EP: SP2: Devloping and Using Models: We started an experiment where we would have to take a hot wheels car and we would make a slope to observe acceleration. We would have to have different amounts of books to create more or less of a slope for more or less acceleration. We would also have to have different amounts of time from 1 to 4 and we would have to do 3 trials for each time and for 1 height to get more accurate results. We would have one person to let go and tell when it reaches a certain amount of seconds and another that would mark were it was at the certain time and they would measure were the other would record and help to observe and things the others needed help with. We did not finish but we got mostly consistent times for each trial for the certain slopes.