Electricity
What is electricity?
the flow of electrical power or charge
Protons carry a _____________ charge.
Positive
What are some examples of insulators?
Plastic, wood, air, rubber, and glass?
The force between chahrged particles or objects is called ...
electric force
How many pathways are in a series circuit?
One pathway.
Who Discovered Electricity?
Benjamin Franklin
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 are examples of series circuits?
Flashlight, holiday lights
Is Electricity Used in the Human Body?
Yes, electricity is required for the nervous system to send signals throughout the body and to the brain.
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
How Is Electricity Used?
Lighting, heating, cooling, operating, machinery, etc.
True or False: Electrons can move from one atom to another..
True.
What are conductors?
materials that allow electricity to flow easily; readily conduct electric charge.
In an electric field, the field lines point in the direction that the force would ....
push away a positive charge.
Do series circuits or parallel circuits have a voltage that stays the same throughout?
Parallel Circuits
What is voltage?
an electromotive force or potential difference expressed in volts.
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.
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 items increases the overall resistance in parallel circuits.
False