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Electricity and Magnetism. Negative charges in an atom are called ___________. electrons. What kind of electricity can be caused by rubbing two materials together?. Static Electricity.
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Electricity and Magnetism
Negative charges in an atom are called ___________. electrons
What kind of electricity can be caused by rubbing two materials together? Static Electricity
When you rub a balloon with a cloth, __________ charges are knocked off the cloth and are collected onto the balloon. This makes the balloon have a __________ charge. negative negative
What is a discharge of static electricity in the atmosphere called? Lightning
Lightning occurs when the ___________ charges in the thundercloud build up and jump to the ____________ charged ground. negative positively
What kind of electricity is caused by a continuous flow of electrons? Current Electricity
What is the path that electricity flows through called? Circuit
A circuit must be _________ to allow the flow of electricity. closed
What do we call materials that allow the flow of electricity? Conductors
What do we call materials that do not allow the flow of electricity? Insulators
What is a poor conductor called? Resistor
Resistors allow electrical energy to be ___________ into other forms of energy. changed
Name three types of energy that electricity can be changed into. Heat, light, and mechanical energy
How many pathways does a parallel circuit have? Two or more
What kind of circuit is it? parallel
What kind of circuit is it? series
What is the area of magnetic force called? Magnetic Field
What do you make if you put together a closed circuit and wrap the wire around an iron nail? Electromagnet
How can you make an electromagnet stronger? You can wrap the wire around the iron nail more times.