Forces in Nature Retest

Question

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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?
Responses

Attach wires to the ends of each magnet and measure the currents going through the wires.
Attach wires to the ends of each magnet and measure the currents going through the wires.

Put each magnet into a beaker of water to see how much water it displaces.
Put each magnet into a beaker of water to see how much water it displaces.

Measure how close each magnet can get to a metal object before picking it up.
Measure how close each magnet can get to a metal object before picking it up.

Record the mass of each magnet by measuring it on a balance scale.

Answer 1

To determine which magnet has the most magnetic energy, the most effective method would be to measure how close each magnet can get to a metal object before picking it up. This approach effectively assesses the strength of each magnet's magnetic field, which correlates with the amount of magnetic energy it can exert on a nearby ferromagnetic object.

The other options are not directly useful for determining magnetic energy:

• Attaching wires (current measurement) is not a standard way to measure the energy of a magnet.
• Water displacement is irrelevant since it measures volume, not magnetic properties.
• Recording the mass provides the weight of the magnet, not its magnetic energy.

Therefore, the best response is: Measure how close each magnet can get to a metal object before picking it up.