Question

select the option that best completes the following sentence.
imagine that the straight bar magnet in the picture above is cut in
half. the half that is painted red and labeled n will have:
just a north pole
no north pole or south pole
a north pole and a south pole
just a south pole
question 9 (1 point)
if you break a magnetized object in half, what will happen to the the
polarity of each half of the magnet?
one magnet will be a north magnet, one will be
a south magnet
the objects will no longer be magnetic.
each half of the object will have its own north
pole and south pole.
the magnets will not have to touch an object for
the magnetism to work.
identify whether the following statement is true or false.
if two magnets are brought close together, they will always attract
each other.
true
false
question 10 (1 point)
which color is the north pole of a magenet normally painted?
black
red
blue
magenta

Explanation:

1. For the first sentence-completion question: Magnets are dipolar, so cutting one creates two smaller dipolar magnets.
2. For the true/false question: Magnets attract opposite poles and repel like poles, so they don't always attract.
3. For Question 9: Breaking a magnet results in each piece having both poles.
4. For Question 10: Standard convention uses red for the north pole of a magnet.

Answer:

1. a north pole and a south pole
2. False
3. Each half of the object will have its own north pole and south pole.
4. Red