VOCAB
Define Electric field
The region around a charged object where its electric force interacts with other charged object
Define Mr. C
Any answer that involves the word "crazy"
LIKE charges ____ ,While OPPOSITE Charges _____
Repel, Attract
Give an example of a magnetic material
iron, nickel, cobalt (ETC)
What types of things use electromagnets? Give THREE examples
toasters, doorbells, fans, Blu-ray players, hard drives, Electric Cars, ETC
Define Magnetic poles
The two ends of any magnet (north and south)
Define Static
The build-up of charges
Name the 3 ways Static electricity can occur
Friction,Conduction,and Induction
TRUE OR FALSE, All magnets are surrounded by magnetic fields.
TRUE
Explain how toasters use electromagnets
A toaster tray is pulled down by an electromagnet while bread is toasting
Define Magnetic field
The area of magnetic force around a magnet
Define Friction
The transfer of electrons from one uncharged object to another by rubbing
Give an Example of Static electricity
balloon on clothes or hair,(ETC)
Give an Example of a hard magnet
Steel (ETC)
Name 3 ways the THREE ways to make a simple Electromagnet stronger
Apply more voltage by adding a second battery.
Add more turns/coils of wire around the nail.
Using a bigger core
Define Electromagnet
A magnet that runs on electricity
Define Conduction
The transfer of electrons from one charged object to another by direct contact
Give an example of Conduction and an example of Induction
(Answers may vary,As long as they have one for each they receive the points)
TRUE OR FALSE Iron is a magnetically hard material
FALSE, Iron is magnetically SOFT
Explain how Doorbells use electromagnets
When the button of the bell is pushed, it sends current through the electromagnet
Define Induction
One charged object induces an electric field which attracts and repels charges in the second object
Define Electric Charge
The basic property of electrons and protons where electrons have a negative charge and protons have a positive charge
Explain the MAIN difference between Induction and Conduction
Induction:No direct contact, Conduction:Direct contact
What is the direction of the magnetic field around a bar magnet North to South OR South to North
north to south
Explain how to build a simple Electromagnet
Wrap the wire in many turns around the nail and connect a battery