Magnetic
What is a magnet?
An object that produces a magnetic field.
How can you build an electromagnet?
True or false: human beings contain electricity within them.
True
What is an electron?
A negatively charged particle that carries electricity.
What is something we should NOT do during meditation?
Talk, think, move
What are 3 characteristics of magnets?
They have 2 poles
They exert a force without touching
They attract or repel certain metals
How does a compass work?
The magnetic needle in the compass points north toward the Earths big magnetic pole.
What are five things that have electromagnets?
Fans, Lights, Speakers, Laser Printers, Phone
Opposite charges....
attract!
What is something we should do during meditation?
BREATHE, close our eyes, relax, put head down
What would happen to the iron in the coilgun if the electricity in the coil was turned on but not turned off?
Instead of flying through the coilgun, the iron would get stuck at the magnet.
Describe one way you can increase the strength of an electromagnet.
Add more electricity (bigger battery)
or
Add more coil (wire)
Why does the hair stick to the balloon?
This is an example of static electricity. When two objects – such as your hair and the balloon – rub together, one loses some of its electrons to the other. This makes one object positively charged and the other object negatively charged. The opposites then are attracted to each other.
LIKE charges (same).........
Repel!
Mario!
Luigi!
The north pole of one magnet is always attracted to the ______ pole of another magnet.
south
What happens to the force between two magnets as the magnets come closer together?
The force becomes stronger.
Positive electric charges are always attracted to ________ charges.
negative
Gravitational, ___________ and _________ are three example of fields.
magnetic and electric
Hear ye hear ye!
Long live the King!
List two metals attracted by magnets
Iron, nickel
Why doel the coil of wire in a speaker become attracted to or repelled by the permanent magnet on the back of the speaker?
AN ELECTRIC CURRENT tells the speaker to vibrate in a certain pattern which produced sound waves we hear as music.
Describe how an electric field is generated.
An electric filed is generated by objects that have a positive or negative charge.
Fields allow some objects to exert forces on each other even when they are not ___________.
Touching!
Spaghetti!
MEATBALL