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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They pull toward each other
When two objects have different electric charges, they
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When you turn on a light, you close an open circuit.
Every time you turn on a light, you do what?
a. close an open circuit OR b. open a closed circuit |
Magnet
The invention of the compass showed that Earth acts like a giant _________.
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d. are good insulators
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 |
overload
If you plug too many appliances into one electric outlet, you can cause a _____________
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Negative charges through matter
Electric current is the flow of
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Series circuit (closed circuit)
When you turn off a lamp, and all the other lights turn off what kind of a circuit are the electric appliances connected too
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Magnetic field
The northern lights are caused by the Earth's _______________.
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Repel each other
You hold the south poles of two magnets near each other. The poles will __________
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magnetic rock
What is a lodestone
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Conductor
What is a material through which electric current passes easily __________
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Overheat and cause a fire OR give you a shock if you touch them.
If you connect too many appliances to on circuit, the wires can
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c. A magnet's force is the greatest at its poles.
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 pole of a magnet always points north. |
a magnet and an energy source (fuel, water, heat, or coal.)
Most electric generators make electricity by using
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Generators have huge electromagnets with big coils of wire and magnets. They can use a power source such as nuclear energy or coal, to move the magnet and produce electricity.
*Explain how electromagnets are used to make electric power?*
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Negative charges
When you rub two balloons together _________charges, can move from one to the other.
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Answers will vary
What are two things we learned about how to be safe around electricity?
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A place on a magnet where magnetism is strongest.
What is a pole?
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electromagnet
a _______________ is created when electric current flows through a wire.
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true
True or False, magnetism and electricity are closely linked?
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Closed circuit (It can be in the shape of parallel or series.)
An electric current flows only through a circuit when it is _________.
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As you walk, your body picks up negative charges from the carpet. When you reach for the switch, the negative charges move from your hand to the switch. That is when you feel a shock.
When you walk across a thick carpet and reach out to turn on a light switch. Explain why you feel a shock?
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Open the circuit
When you turn on a light, does it open the circuit or close the circuit?
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generator
A machine that produces electricity is called a _________________
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Students will draw for me to see.
Draw for me what a parallel circuit looks like
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