N. Sassaman SAMS
VOCABULARY, VOCABULARY, VOCABULARY!! List in notes, atomic particles, units of measurement.
Examples of conductors, insulators Change resistance in a wire… Charged particles and interaction Series vs. parallel circuits ◦ Switch placement, added bulbs and affect on current, brightness, overall resistance. Ohm’s law (VIR relationships)
Formulas will be given!! Be sure to SHOW YOUR WORK! ◦ Formula ◦ Values in formula ◦ Final answer with correct units of measurement
CIRCUITS!! Identify series vs. parallel circuits Know how parts of the circuit affect the whole
Three (3) to choose from…you do ONE (1)! Circuits – general and series vs. parallel Conductors and insulators
- Electric Charge and Static Electricity Charges that are the same repel each other. Charges that are different attract each other.
- Electric Charge and Static Electricity An electric field is a region around a charged object where the object’s electric force is exerted on other charged objects.
- Electric Current Electric current is the continuous flow of electric charges through a material.
- Electric Current An electric circuit is a complete, unbroken path through which electric charges can flow.
- Electric Current Two factors that affect the resistance of water flowing in a pipe are diameter and length. The diameter and length of a wire also affect resistance in a circuit.
domain.org/asset/h ew06_int_ohmslaw/ V = I R R = V/I I = V/R
- Electric Circuits Simple symbols are used to diagram a circuit.
- Electric Circuits In a series circuit, there is only one path for the current to take. Overall resistance is additive. Dimmer lights “If one light goes out, they all go out!”
- Electric Circuits In a parallel circuit, there are several paths for the current to take. Each path is independent of the others. Brightness same as if only one bulb.
- Electrical Safety One way to protect people from electric shock and other electrical danger is to provide an alternate path for electric current.