What is an Electric Current? | How do Electric Circuits Work? | What is Magnetism? | How do Electricity and Magnetism work together? | Other |
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When two objects have different electric charges, they
Pull toward each other.
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Every time you turn on a light, you
Close and open circuit
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The invention of the compass showed that Earth acts like a giant _________.
Magnet
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Electric wire is coated with plastic or rubber because of these materials?
a. melt very slow b. conduct the flow of electricity c. are inexpensive and easy to make d. are good insulators
d. are good insulators
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If you plug too many appliances into one electric outlet, you can cause a _____________
overload
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Electric current is the flow
Negative charges through matter
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When you turn off a lamp, and all the other lights turn off what kind of a circuit are the electric appliances connected to?
Series circuit
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The northern lights are caused by the Earth's _______________.
Magnetic field
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You hold the south poles of two magnets near each other. The poles will __________
Repel each other
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What is a lodestone?
magnetic rock
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What is a material through which electric current passes easily
Conductor
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If you connect too many appliances to on circuit, the wires can
overheat and cause a fire OR give you a shock if you touch them.
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Which statement about magnetism is correct?
a. The smaller the magnet, the greater the force. b. Magnets attract all types of metal. c. A magnet's force is the greatest at its poles. d. The S pol of a magnet always points north.
c. A magnet's force is the greatest at its poles.
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Most electric generators make electricity by using
a magnet and an energy source.
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*Explain how electromagnets are used to make electric power?*
Answer in book
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When you rub two balloons together _______________, can move from one to the other.
+ -
Negative charges
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What are two things we learned about how to be safe around electricity?
Answers will vary
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What is a pole?
A place on a magnet where magnetism is strongest.
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a _______________ is created when electric current flows through a wire.
electromagnet
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True or False, magnetism and electricity are closely linked?
true
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An electric current flows only through a what kind of circuit?
Closed circuit
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When you walk across a thick carpet and reach out to turn on a light switch. Explain why you feel a shock?
Answer in book
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A machine that produces electricity is called a _________________
generator
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Draw for me what a parallel circuit looks like
Students will draw it for me to see.
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