Day 21 - Written Test

Due to recent weather closures, we've lost a few days from our schedule. In addition, several teams have been slow to build and test their designs. Regardless, we are out of time and need to move on to our next unit, so we will have our written test today.

Once you complete the test (it is brief), spend the remainder of the bell writing up your EDP results, which must be turned in on Tuesday.

coil

a layered loop of conductive material (such as copper); current through this loop will produce a magnetic field

commutator

a cylinder with a break in it such that as it spins it keeps breaking the circuit for a moment to allow a reversal of current

current

in electronics, it is the movement of electrons through a circuit; this movement can be direct (flow) or alternating (vibration)

dynamo

a generator that converts movement (mechanical energy) into electricity (electrical energy)

electromagnetism

the physics invovled with the flow of electrons and their magnetic fields

generator

in engineering, a generator is any device that outputs energy in a specific form (often electricity)

magnetic field

the accumulation of force from millions of electrons aligned in the same direction, making the substance behave like an ionic element