electromagnetism

Identify ALL the devices which use electromagnetism

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What is/are the difference(s) between a magnet and an electromagnet?

• An electromagnet can be turned on/off.

• A magnet can be turned on/off.

• The strength of a magnet can be controlled by changing the current to it

• The strength of an electromagnet can be controlled by changing the current to it

Identify the diagram which shows the correct magnet poles on an electromagnet

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At which location is the magnetic field the strongest?

• 1

• 2

• 3

• 4

An electron moving in wire is an example of  ____________. 

• Gravity 
• Electromagnetism 
• Strong Nuclear 
• Weak Nuclear 

An attraction between particles which is created by electricity

• induction

• electromagnetism

• cupidism

• magnetism

A large number of cars are to be moved unto a ship. Identify the correct statement.

• A permanent magnet is best to use because it will hold the cars permanently so they will not fall off

• A permanent magnet is best to use because it is stronger

• An electromagnet is best to use because it can be turned on to take up the car and off to to release it on the ship

• An electromagnet is a temporary magnet

What is the magnetic pole at "X" on the electromagnet shown?

• South pole

• North pole

Faraday and Henry discovered _________________

• electricity

• electromagnetic induction

• magnetism

• how to make wire into coils.

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 more batteries