Benchmark Review

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Fill in the blank

• decrease, increase

• increase, decrease

• changes, doesn't change

• doesn't change, changes

#3

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#4

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#5

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#6: Which statement is true about the electromagnet?

• a magnetic field is created around the electromagnet when the nail is placed next to the battery

• a magnetic field is created around the electromagnet after the battery is removed from the wire

• a magnetic field is created around the electromagnet when an electric current flows through the  wire

• a magnetic field is created around the electromagnet after the pins come into contact with the nail

#7

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#8

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#9

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#10

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• D