Understanding Magnetism

What is the force called that pulls a magnet and a refrigerator door together?

• Gravity

• Repulsion

• Friction

• Attraction

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Which of the following materials is not attracted to magnets?

• Iron

• Nickel

• Gold

• Cobalt

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What happens when you try to push together two north poles of magnets?

• They attract

• They repel

• Nothing happens

• They create light

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What creates the force of magnetism at the atomic level?

• Proton alignment

• Neutron movement

• Electron spinning

• Atomic collisions

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What is the area around a magnet where its force can act called?

• Force field

• Magnetic field

• Electric field

• Gravitational field

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Which poles of a magnet attract each other?

• North and North

• East and West

• South and South

• North and South

Which of these is a use of electromagnets?

• Powering light bulbs

• Running computers

• Construction work

• Heating food

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How fast can maglev trains travel using magnetism?

• 250 miles per hour

• 100 miles per hour

• 500 miles per hour

• 375 miles per hour

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What are lodestones naturally magnetized by?

• Solar energy

• Chemical reactions

• Lightning strikes

• Radioactive decay

What natural object is considered a huge magnet?

• Jupiter

• Earth

• The Moon

• The Sun