Kayla has two magnets. She would like to know how much magnetic energy is stored in each one. What would be the best way for her to determine which magnet has the most magnetic energy?

Question

Kayla has two magnets. She would like to know how much magnetic energy is stored in each one. What would be the best way for her to determine which magnet has the most magnetic energy?

a
Attach wires to the ends of each magnet and measure the currents going through the wires.
b
Put each magnet into a beaker of water to see how much water it displaces.
c
Measure how close each magnet can get to a metal object before picking it up.
d
Record the mass of each magnet by measuring it on a balance scale.

Answer 1

C) Measure how close each magnet can get to a metal object before picking it up. This is because the strength of a magnet is determined by its magnetic field, which is what attracts the metal object. The closer a magnet can get to a metal object before attracting it, the stronger its magnetic field and the more magnetic energy it has stored.