Multiple Choice
You must use this to move objects.
A. push B. pull
C. force D. magnetic field
C. Force
True or False: A force is a repel or attract.
False
Like poles (north and north; south and south) ____________.
repel
Which poles attract or pull to each other?
A. Similar B. Opposite
C. Strong D. Weak
B. Opposite
True or False: The poles or ends of a magnet are the strongest part.
True
The invisible force field that surrounds a magnet is called the _______________.
Magnetic Field
Which of the following is a giant magnet?
A. A Rocking Chair B. A Bed
C. A Building D. The Earth
D. The Earth
True or False: An electromagnet is a permanent magnet.
False.
______________ are magnets that can be turned off and on using electricity.
Electromagnets
This type of magnet keeps its attraction for a long time and does not have a switch.
A. Temporary B. Permanent
C. Electromagnet D. Steel
B. Permanent
Magnets can attract through some things like paper or plastic.
True
The ends of magnets are called __________.
Poles
Magnets do not attract all metal. Metals that magnets attract include which of the following? Select all that apply
A. Iron B. Steel
C. Copper D. All of the above
E. None of the above
A and B: Iron and Steel
True or False: Any metal attracted by a magnet becomes a permanent magnet itself while in contact with the magnet. (Ex. a paperclip becomes a magnet while it is attached to the magnet.)
False.
Magnets may look different, but they all have one special property: they are able to pull or ________ certain objects.
Attract