Here are the correct answers for each question:
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Select two that apply. Define the term magnetism.
- fundamental force
- response of either attraction or repulsion to a magnetic field
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Select two that apply. Define the term dipolar.
- it contains a north and a south pole
- it has two poles
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Choose the best answer. Define the term permeability.
- ability of a material to become magnetized.
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Choose the best answer. Like gravitational and electrical forces, the strength of magnetic forces between two magnets have a(n) _____ relationship with the distance between the two magnets.
- inverse-square
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Matching. The like poles in a magnet repel each other, while the opposite poles attract each other.
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Select the picture that represents the correct way of drawing the lines of force on the magnet. (This question requires a visual representation that cannot be provided in this format.)
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Select two that apply. How do electrons move in an atom?
- Each electron spins on its own axis.
- Electrons revolve around the nucleus of their atom.
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Choose the best answer. In most elements, how do the electrons spin?
- An equal number of electrons spin in both directions.
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Choose the best answer. In elements that can become magnetized, how do the electrons spin?
- A larger number of electrons are spinning one direction more than are spinning the other direction.
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Choose the best answer. Among materials that can become magnetized are _____.
- some metals
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Choose the best answer. Small zones of magnetism that exist in magnetized metals are called _____ domains.
- magnetic
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Choose the best answer. To speed up making a permanent magnet from a metal object by influencing it with a strong magnetic field, you can _____.
- tap or stroke the permanent magnet on the metal object
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Choose the best answer. A permanent magnet can lose its magnetism by having its domains _____.
- disoriented
Feel free to ask if you have any more questions!