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- 1. Multiple ChoiceA north pole and a south pole will attract.TrueFalse
- 2. Multiple ChoiceA magnet cannot not move which of the following objects?a paper clipa naila toothpicka staple
- 3. Multiple ChoiceHow is a permanent magnet DIFFERENT from a temporary magnet?A permanent magnet attracts materials made of iron.A permanent magnet has poles.A permanent magnet has a magnetic field.A permanent magnet keeps its magnetism for a long time.
- 4. Multiple ChoiceEarth acts like a giant magnet because its center is made up MOSTLY ofgranitelimestoneironnickel
- 5. Multiple ChoiceTrue or False: All metals stick to magnets.TrueFalse
- 6. Multiple ChoiceIt is possible for a magnet to have only one pole.TrueFalse
- 7. Multiple ChoiceA device that uses a free-moving magnetic needle to show direction is a:lodestonemagnetcompassmagnetic field
- 8. Multiple ChoiceWhere is the force of attraction the strongest on a magnet?at the polesin the middleabove the magnetbelow the magnet
- 9. Multiple Choice
Earth's magnetic field and a bar magnet attract particles to the same locations. Where are they?The middleAll around the outsideThe north and south polesFirst to the middle, then to the ends - 10. Multiple ChoiceWhere is Earth's magnetic field strongest?Along the outside linesAlong the inside lines on either sideWhere the lines are close together at the polesIn the space outside of the lines
- 11. Multiple ChoiceWhy does a compass needle point north?The compass is a bar magnetBecause north is upBecause it's magicIt lines up with the Earth's magnetic field
- 12. Multiple ChoiceWhen two magnets attract, they ______________push apartchange colorget colderpull together
- 13. Multiple ChoiceWhen two magnets repel, they ________________change colorpull togetherpush apartget colder
- 14. Multiple ChoiceWhat will happen when these magnets are brought close together?They will attract each other.They will repel each other.Both magnets will turn to the leftBoth magnets will turn to the right
- 15. Multiple ChoiceThis large crane magnet functions only when the electrical current is ON. The crane magnet is an example of what type of magnet?NIB MagnetCeramic MagnetElectromagnetfunnel magnet
- 16. Multiple ChoiceIron, Nickel and cobalt are all __________________ materialsShinypolesmagneticcold
- 17. Multiple ChoiceWhat characteristics do magnetic substances have?They can give you a "shock" when you touch themThey can push or pull objects without touching themThey are always black and cold to touchThey fall faster than other objects when you drop them
- 18. Multiple ChoiceHow is Earth's magnetic field similar to that of a magnet?It is hundreds of miles longIt has north and south polesIt is made in Earth's coreIt is shaped like a horseshoe
- 19. Multiple ChoiceWhich of the following is true of a bar magnet?Its magnetic field is strongest near its center.It is surrounded by a magnetic field.The north pole is stronger than the south pole.The south pole is stronger than the north pole.
- 20. Multiple ChoiceWhat happens when two north poles of a magnet are placed together?they repelthey attractthey cancel each other outthe strength of the magnet is doubled
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