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- Multiple ChoicePlease save your changes before editing any questions.
Which of these is attracted to a magnet?
iron nail
copper coin
piece of paper
notebook
- Multiple ChoicePlease save your changes before editing any questions.
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.
- Multiple ChoicePlease save your changes before editing any questions.
The magnets as shown will
not move
attract
repel
all of the above
- Multiple ChoicePlease save your changes before editing any questions.
The magnets as shown will
not move
attract
repel
all of the above
- Multiple ChoicePlease save your changes before editing any questions.All magnets have 2fieldscolorspolesall of the above
- Multiple ChoicePlease save your changes before editing any questions.The two poles on a magnet arenorth and eastnorth and westsouth and northsouth and west
- Multiple ChoicePlease save your changes before editing any questions.Where is the strongest attraction force of the magnet?at the polesin the middleabove the magnetbelow the magnet
- Multiple ChoicePlease save your changes before editing any questions.As the distance between two magnets increases (they get farther apart), the force between them:IncreasesDecreasesStays the Same
- Multiple ChoicePlease save your changes before editing any questions.If 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
- Multiple ChoicePlease save your changes before editing any questions.What kind of magnet can be turned on and off?refridgerator magnetelectromagnetmagnetiteiron
- Multiple ChoicePlease save your changes before editing any questions.Electricity can be used to create a magnetTrueFalse
- Multiple ChoicePlease save your changes before editing any questions.You 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
- Multiple ChoicePlease save your changes before editing any questions.Iron, Nickel and cobalt are all __________________ materialsShinypolesmagneticcold
- Multiple ChoicePlease save your changes before editing any questions.Which object would a magnet attract?a glass bottlea piece of papera metal paper clip
compassa rubber eraser
magnetic field - Multiple ChoicePlease save your changes before editing any questions.What happens when two north poles of a magnet are placed together?they repelthey attractthey cancel each other outthe strength of the magnet is doubled
- Multiple ChoicePlease save your changes before editing any questions.True or False: All metals are attracted to magnet.TrueFalse
- Multiple ChoicePlease save your changes before editing any questions.Which 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.
- Multiple ChoicePlease save your changes before editing any questions.
A device that uses a free-moving magnetic needle to show direction is a:
Ruler
magnet
compass
magnetic field
- Multiple ChoicePlease save your changes before editing any questions.A north pole and a south pole will attract.TrueFalse
- Multiple ChoicePlease save your changes before editing any questions.This is a picture of a ________________ magnet.barcirclehorseshoepaddle
- Multiple ChoicePlease save your changes before editing any questions.Which two metals will be attracted by a magnet?iron and steelgold and silveraluminum and leadcopper and cobalt
- Multiple ChoicePlease save your changes before editing any questions.The space around a magnet where the force of a magnet can attract best is called__________magnetismbar magnethorseshoe magnetmagnetic field
- Multiple ChoicePlease save your changes before editing any questions.This 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
- Multiple ChoicePlease save your changes before editing any questions.What do the lines around this magnet represent?North PoleSouth PoleMagnetic DeclinationMagnetic Field
- Multiple ChoicePlease save your changes before editing any questions.An 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
- Multiple ChoicePlease save your changes before editing any questions.Which direction is the North Pole of this electromagnet?RightLeftUpDown
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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
- Multiple ChoicePlease save your changes before editing any questions.A magnetized iron nail is called a ________ magnet.permanenttemporaryhorseshoeindustrial
- Multiple ChoicePlease save your changes before editing any questions.Iron filings form this when sprinkled on a piece of paper over a magnet.temporary magnetlines of forcemagnetismnorth pole
- Multiple ChoicePlease save your changes before editing any questions.The Earth is a giant magnet.truefalse
- Multiple ChoicePlease save your changes before editing any questions.A magnetized needle that is allowed to swing freely is a compass.truefalse
- Multiple ChoicePlease save your changes before editing any questions.The space in which the force of a magnet can act is its magnetic field.truefalse
- Multiple ChoicePlease save your changes before editing any questions.A 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
- Multiple ChoicePlease save your changes before editing any questions.What is responsible for the Magnetic Field around Earth?The Earth's crustThe Earth's molton iron coreThe Earth's mantelThe Sun
- Multiple ChoicePlease save your changes before editing any questions.Which direction is the North Pole of this electromagnet?RightLeftUpDown