Electromagnetism

​If you are a scientist, what is your conclusion?

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Did we do any lab that shows the interaction between electricity and magnetic field? What is it?

(a)  

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A magnet will pick up an object that is made of...

• plastic

• iron or steel

• glass

• copper

How do you make an electromagnet stronger?

• Add a motor and/or lightbulbs
• Add more light bulbs and/or wire coils
• add more wire coils and/or a switch
• add more wire coils and/or batteries

What is true about electricity and magnetic fields?

• Electricity is needed to create any magnet.
• Electricity always creates a magnetic field.
• Electricity is stronger than a magnetic field.
• Electricity prevents magnetic fields from occurring.

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This is a picture of a simple electromagnet. How can the electromagnet be made stronger?

• Add more coils of wire to the nail.
• Use a smaller battery.
• Reverse the poles of the magnet.
• Remove all the coils and the nail.

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A compass needle responds to a magnetic field, because the compass needle is a

• A. generator.
• B. motor.   
• C. magnet.
• D. transformer.

Which sides of the magnet repel each other?

• A) North and North Pole

• B) South and South Pole

• C) The North and South Pole

• D) A and B

• E) A, B,C

What happens when an electric current flows through a wire?

• The wire begins to spin.

• Nothing happens.

• A field of gravity is created around the wire.

• A magnetic field is created around the wire.

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How do you describe electromagnetism?

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