Which of these items are NOT magnetic?>>>>>>>>>>>> penny, glass marble, paper clip, eraser, nail, U.S. nickel, earth
penny, glass marble, eraser, U.S. nickel
100
Two north poles of a magnet will...>>>>> a.) repel b.) attract c.) stick together
a.) repel
100
A place on a magnet where magnetism is strongest
pole
100
An ELECTROMAGNET is a magnet that is powered by ___________.
electricity
100
Magnets have two poles, a _________ pole and a _________ pole. >>>>>>>>>>>>
a.) top and bottom
b.) south and north
c. ) east and north
b.) south and north
200
A magnet can attract or repel through a piece of paper because... a.) the needle points north b.) paper is a magnetic material c.) the paper is thin enough for the magnetism to pass through
c.) the paper is thin enough for the magnetism to pass through
200
Name 4 items that will attract to magnets.
earth, paperclip, iron nail, a refrigerator, staple, magnet, needle, metal or iron items
200
To push away means...
repel
200
Name something that magnetic force can travel through.
Magnetic force travels through some things like... air, water, cloth, glass, and paper.
200
The magnetic force is strongest... >>>>>>>>>>>
a.) in the center of a magnet.
b.) at the poles.
c.) at the south pole.
b.) at the poles.
300
A compass uses the magnetic force of...>>>>>>> a.) the moon b.) the earth c.) paper clips
b.) the earth
300
Name at least 2 magnetic materials found in nature.
iron (steel), nickel, cobalt, lodestone (Magnetite)
300
To pull forward means to
attract
300
If you sprinkle iron filings above a magnet, where will most of them be attracted to? Why?
The iron filings will be attracted to the POLES of the magnet. This is BECAUSE THE MAGNETIC FORCE IS STRONGEST AT THE POLES. (Where the magnetic force is strongest is where a large amount of iron filings will be attracted. Where the magnetic force is weakest doesn't attract many iron filings.)
300
Unlike poles of a magnet...>>>>>>>>>>>
a.) attract
b.) repel
c.) neither a or b
d.) both a and b
a.) attract
400
Where is the magnetic force of a magnet the strongest?
at the poles
400
When you STROKE an object made of magnetic material in ONE DIRECTION with a MAGNET, you make a __________________ magnet.
temporary magnet
400
The force of a magnet is called...
magnetism
400
When the north pole of one magnet is next to the south pole of another magnet, the magnetic field between them is _________________. >>>>>>a.) weak b.) strong c.) equal
b.) strong
400
True or False: A magnet can attract another magnet.
True
500
When making a temperary magnet, you must stroke the object in a special way so that all the atoms line up in the same direction to create a magnetic field. What special way do you have to stroke the object?
It must be stroked IN ONE DIRECTION.
500
Earth has a magnetic north pole and a magnetic south pole. Why are these points important in using a compass?
They're important because a compass needle always points to the magnetic north pole.
500
The force around a magnet that you can not see is called the...
magnetic field
500
What happens when you put the south pole of one magnet next to the south pole of another magnet?
The magnets repel or push away from each other.
500
What pole of a magnet will attract to the north pole of another magnet?