Answer me this...
What is Mr. Martin's favorite food?
Burgers.
Protons carry a _____________ charge.
Positive
What are some examples of insulators?
Plastic, wood, air, rubber, and glass?
The force between charged particles or objects is called ...
electric force
How many pathways are in a series circuit?
One pathway.
What year did Peachtree Ridge open?
2003
Electrons carry a _____________ charge.
Negative
What are some examples of conductors?
Metals (especially copper in wires) and skin.
A region around a charged particle or object where the force is excerted on other objects is called an
electric field
What happens if you add an additional resistor/light bulb to a series circuit?
How much wood would a wood chuck chuck if a wood chuck could chuck wood? :)
A woodchuck would chuck what a woodchuck could chuck if a woodchuck could chuck wood.
Neutrons carry a _____________ charge.
neutral
What is an Insulator?
Materials that block the flow of electricity through them.
Opposites _____________, and like charges ______________.
Attract and repel.
What are some examples of parallel circuits?
House, school
You run the vacuum, which draws 8 A of current, for 30 minutes. If the power company charges at a rate to $0.85/kWh, how much did it cost to vacuum the house?
P = I𑁦V
P = (8 A)(120 V) = 960 W = 0.96 kW
If you ran it for 30 min = 0.5 hr, you used…
0.96 kW 𑁦 0.5 hr = 0.48 kWh
So you owe…
0.48 kWh 𑁦 $0.85/kWh = $0.40
True or False: Protons can move from one atom to another..
False.
What are conductors?
materials that allow electricity to flow easily; readily conduct electric charge.
If I increase the distance between charges, what happens to the electric force between them?
It reduces
Do series circuits or parallel circuits have a voltage that stays the same throughout?
Parallel Circuits
What is another way phrase we use for voltage?
Potential difference.
How do we determine the overall charge of an atom?
If it carries more electrons, its negative. If it carries more protons, its positive. If it carries the same amount of protons and electrons, its neutral.
Electroscopes help us determine if there is a charge.
Do insulators or conductors have more resistance?
Insulators
Strength of an electric force depends on ...
the distance between charges and the amount of charge present.
True or False: More resistors result in an increase of the overall resistance in parallel circuits.
False