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- 1. Multiple Choice
Which of these is attracted to a magnet?
iron nail
copper coin
piece of paper
notebook
- 2. Multiple Choice
A magnet will pick up a nail, but not a coin because the nail
has rust on it.
is lighter than the penny.
has a sharp point.
contains iron.
- 3. Multiple Choice
The magnets as shown will
not move
attract
repel
all of the above
- 4. Multiple Choice
The magnets as shown will
not move
attract
repel
all of the above
- 5. Multiple ChoiceAll magnets have 2fieldscolorspolesall of the above
- 6. Multiple ChoiceThe two poles on a magnet arenorth and eastnorth and westsouth and northsouth and west
- 7. Multiple ChoiceWhere is the strongest attraction force of the magnet?at the polesin the middleabove the magnetbelow the magnet
- 8. Multiple ChoiceAs the distance between two magnets increases (they get farther apart), the force between them:IncreasesDecreasesStays the Same
- 9. Multiple ChoiceIf you cut a magnet in half, what happens to the poles?One half gets the North Pole, the other half gets the South PoleBoth halves get only a North PoleBoth halves get only a South PoleBoth halves get a North pole and a South Pole
- 10. Multiple ChoiceWhat kind of magnet can be turned on and off?refridgerator magnetelectromagnetmagnetiteiron
- 11. Multiple ChoiceElectricity can be used to create a magnetTrueFalse
- 12. Multiple ChoiceYou can make an electromagnet stronger by...increasing the current through the wiremake the iron core biggerincrease the number of loops around the coreAll of these
- 13. Multiple ChoiceIron, Nickel and cobalt are all __________________ materialsShinypolesmagneticcold
- 14. Multiple ChoiceWhich object would a magnet attract?a glass bottlea piece of papera metal paper clip
compassa rubber eraser
magnetic field - 15. 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
- 16. Multiple ChoiceTrue or False: All metals are attracted to magnet.TrueFalse
- 17. Multiple ChoiceWhich of the following is true about 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.
- 18. Multiple Choice
A device that uses a free-moving magnetic needle to show direction is a:
Ruler
magnet
compass
magnetic field
- 19. Multiple ChoiceA north pole and a south pole will attract.TrueFalse
- 20. Multiple ChoiceThis is a picture of a ________________ magnet.barcirclehorseshoepaddle
- 21. Multiple ChoiceWhich two metals will be attracted by a magnet?iron and steelgold and silveraluminum and leadcopper and cobalt
- 22. Multiple ChoiceThe space around a magnet where the force of a magnet can attract best is called__________magnetismbar magnethorseshoe magnetmagnetic field
- 23. 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
- 24. Multiple ChoiceWhat do the lines around this magnet represent?North PoleSouth PoleMagnetic DeclinationMagnetic Field
- 25. Multiple ChoiceAn electromagnet's poles may be reversed by:decreasing the voltage of the coilincreasing the number of coilschanging the direction of current flowaltering the material used to make the coils
- 26. Multiple ChoiceWhich direction is the North Pole of this electromagnet?RightLeftUpDown
- 27. Multiple Choice
If a glass plate is placed over a magnet and iron filings are sprinkled over the glass, a pattern will be visible. What does this pattern indicate?
The magnetic field
The electrostatic field
The piezoelectric effect
The chemical reaction of the magnet and the filings
- 28. Multiple ChoiceA magnetized iron nail is called a ________ magnet.permanenttemporaryhorseshoeindustrial
- 29. Multiple ChoiceIron filings form this when sprinkled on a piece of paper over a magnet.temporary magnetlines of forcemagnetismnorth pole
- 30. Multiple ChoiceThe Earth is a giant magnet.truefalse
- 31. Multiple ChoiceA magnetized needle that is allowed to swing freely is a compass.truefalse
- 32. Multiple ChoiceThe space in which the force of a magnet can act is its magnetic field.truefalse
- 33. Multiple ChoiceA simple electromagnet can be made with which of the following?an electric currenta turbine and naila nail, a wire, and a batterya compass and a battery
- 34. Multiple ChoiceWhat is responsible for the Magnetic Field around Earth?The Earth's crustThe Earth's molton iron coreThe Earth's mantelThe Sun
- 35. Multiple ChoiceWhich direction is the North Pole of this electromagnet?RightLeftUpDown
- Answer choicesTagsAnswer choicesTags