Magnets

1. Which of the following materials are strongly attracted to magnets and can be made into magnets?

• copper and plastic

• glass and nickel

• iron and steel

• gold and silver

2. Which of the following statements is/are true about compass?

• It is a temporary magnet.

• The arrow will always point to the North of the Earth.

• The compass needle is a magnet that can spin freely.

• It does not interact with the Earth's magnetic field.

• The needle spins freely and points to the North of the Earth.

3. An invisible attractive force exerted by the Earth and objects on earth is known as

• repulsion

• electricity

• gravity

• magnet

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4. Wood and plastic will ____________ a magnet.

• attract

• repel

• both

• none of the above

5. Which of the following is a true statement about magnetic field between two magnets?

• The north pole of one magnet is attracted to the north pole of another magnet.

• The south pole of one magnet is attracted to the south pole of another magnet.

• The south pole of one magnet is attracted to the north pole of the other magnet.

• The south pole of one magnet can be attracted by both south and north poles of the other magnet.

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6. When two magnets come together so that they pull on each other, we say they _____.

• attract

• repel

• both

• none of the above

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7. The donut magnet has the poles on the _____ sides.

• flat

• inner

• outer

• none of the above

8. The chair demonstration proves that magnetic field can pass through air.

• True

• False

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9. Magnets can attract iron from a distance and through material because magnets are surrounded by an invisible _________.

• electric field

• gravity

• magnetic field

• energy

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10. A bar magnet and a donut magnet are always magnetic. They are considered ___

• permanent magnet

• a compass

• natural magnet

• temporary magnet