Exercise
1. How will you do this?
(a) Determine whether a material is
magnetic or non-magnetic.
(b) Explain that a magnet has a certain
magnetic field.
(c) Find the north pole of a magnet.
Answers
Step-by-step explanation:
(a) Those materials which are not attracted by a magnet are called non- magnetic materials. All the substances other than iron, nickel, and Cobalt are non-magnetic substances for example plastic, rubber, water, etc are nonmagnetic materials. Non-magnetic substances cannot be magnetized.
(b) It represents that the magnet exerts a force around its body with a stronger force near the two poles. Also, this regular pattern of the iron filings on the board represents the lines of magnetic field. Thus, a magnet has a certain magnetic field which can be represented by curved lines around a magnet.
(c) Using a compass, it is relatively easy to distinguish the north pole of a magnet because the end of the compass needle, which usually marks the south, is attracted to the north pole of the magnet.
Hope it helps...