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- 1. Multiple ChoiceTrue or False: All metals stick to magnets.TrueFalse
- 2. Multiple ChoiceWhat subatomic particle causes magnetism in an atom?protonsneutronselectronsnucleus
- 3. Multiple ChoiceWhich poles are attracted?north and northsouth and southnorth and south
- 4. Multiple ChoiceWhich poles repel?north and southsouth and northsouth and south
- 5. Multiple ChoiceBob made an electromagnet but it was very weak. How can he make it stronger?take away a d-cellwrap the wire looselyuse thicker wireuse less winds
- 6. Multiple ChoiceWhich metals are attracted to magnets?iron, nickel, cobaltgold, silver, platinumcopper, magnesium, aluminum
- 7. Multiple ChoiceWhich is not a property of a magnet?all magnets have two polesall magnets have a force of attraction or repulsionall magnets are surrounded by a magnetic fieldall magnets can be turned off
- 8. Multiple ChoiceWhat items will a magnet attract?Beach ball, glassnails, paper clipbook, papergolf ball, glue
- 9. Multiple ChoiceHow is Earth's magnetic field similar to that of a magnet?It's shaped like a horseshoe.It has north and south poles.It is made plastic.It is hundreds of miles long.
- 10. Multiple Choice
This substance ismagnetizedunmagnetizedpositively chargednegatively charged - 11. 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
- 12. Multiple ChoiceEarth acts like a giant magnet because its center is made up MOSTLY ofgranitelimestoneironnickel
- 13. Multiple ChoiceYou know this substance is magnetized becauseall the domains have right anglesthe arrows are drawn in redthe domains are alignedthe domains are random
- 14. Multiple ChoiceWhere are the magnetic force the strongest in this picture?Location 1Location 2Location 3Location 4
- 15. Multiple Choice_______________________ is the invisible force that flows through a magnet.repelcopperattractionmagnetism
- 16. Multiple ChoiceThere are several modern uses of magnets. A ________________________ can have million of magnets. Each magnet points in its own direction, making a code. This allows an individual to make purchases.Driver's LicenseCheck BookCredit CardTV
- 17. 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
- 18. Multiple ChoiceIn this image, matching north poles from two magnets are introduced. What do you predict will be the outcome?There will be no interaction. The poles of magnets do not have an effect on one another.The two north poles will attract each otherThe two north poles will repel each otherThe two magnets will combine and become one magnet
- 19. Multiple ChoiceHow do magnets become weaker?use less of themsmaller ones are always weakerplace them in different temperatures: hot vs coldit is based on cost
- 20. Multiple ChoiceAn electric current flows through a continuous loop known as a ____________.CircuitFieldDomainSwitch
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