Tuesday, July 9, 2013

unit 8 part 2

Today in class we learned about (REAL) POWER and how to graph power! (epic rap battles of history joke) Graphing power was super different from our earlier graphs distance vs time, acceleration vs time, velocity vs time. These graphs all used lines where as a power graph is a bar graph. This bar graph will always have Total Energy (TE) and either Kinetic or Potential or maybe even both!
To show power i took a picture of a wave, this wave has lots of mass and so it can only move at a certain speed due to it's mass. The more mass an object has the more power, that means that this wave probably has lots of power because of its large mass. If you were to time the distance a ripple travelled that turned into a wave you could measure the height and the speed and by this you could calculate the power. Power is the  rate at which work is done Power = change in energy / change in time = work time. The unit for power is Watts or Joules. Tomorrow we're having a rocket experiment and I'm very excited! I can't wait to see how high everyones goes, supposedly some can even explode :o

1 comment:

  1. Nice post, very informative and also i liked how you related it to your picture.

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