Question

1. the area of a bar magnet where magnetism is the strongest.

a. north pole
b. south pole
c. the middle of the magnet
d. both the north and south pole

1. a magnet that uses electricity to generate magnetism is called a(n) ______.

e. bar magnet
f. electromagnet
g. perma - magnet
h. pole magnet

1. which of the following is not a way to generate more magnetism with an electromagnet?

i. increase battery size
j. increase the number of coils
k. decrease the battery size
l. increase the size of the iron rod/nail

Explanation:

Question 1

A bar magnet has the strongest magnetism at its poles (both north and south), while the middle has weaker magnetism. So the correct option is D.

An electromagnet is a magnet that uses electricity (current - carrying coil) to generate magnetism. A bar magnet is a permanent magnet, a perma - magnet (permanent magnet) has inherent magnetism, and "pole magnet" is not a standard term for this. So the correct option is F.

To increase the magnetism of an electromagnet, we can increase the battery size (more voltage, more current), increase the number of coils, or increase the size of the iron rod (core). Decreasing the battery size will decrease the current and thus decrease the magnetism. So the option that is not a way to generate more magnetism is K.

Answer:

D. both the north and south pole

Question 2