Tuesday, March 26, 2013

Physics Standard 6.1

Standard 6.1 Question: How is electricity generated by moving magnetic fields? 

In order to generate electricuty, we need electrons to move. Without moving charges electricity will never be created. Usually this is created by a voltage source, a set of wires which creates the current, and obviously a resistor. Examples of resistors that are common in our everyday lives would be things like lightbulbs. In our lab, the moving magnets push the charges- essentially the magnet acted as the voltage source. Because the charges were being pushed, we had the potential to create electricity because we were moving the electrons. This kinetic energy from the magnet turns into electric potential energy, and is then transferred through the wires which create the current and then into the resistor which gives off the light.



Example: Water Wave Generators
-Energy output is determined by wave length, height and speed
-Kinetic Energy generated from waves turns into "Ue"
-Ue goes through wires which transfer the current to wherever the energy is needed