Magnetic and Electric Forces

What makes an electromagnet stronger?

• Greater number of loops

• Smaller number of loops

• Decreasing the current

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A ___________ is an example of an electromagnet. (Select 3)

• Motor

• Speaker

• Resistor

• Hard Drive

The two types of charges in electric and magnetic forces are __________ and __________. (Select 2)

• positive

• negative

• neutral

When electrons all spin in the same direction, they create an invisible force known as __________.

• electricity

• magnetism

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NGSS.MS-PS2-3

_________________force is the attractive and repulsive force between two poles.

• Electric

• Magnetic

• Sound

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_________________force occurs when ions create attractive and repulsive forces.

• Magnetic

• Electric

• Sound

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Atoms That have a positive charge will be attracted to atoms with a _______ charge.

• Positive

• Negative

• Neutral

The area around an electric charge that experiences the force exerted by the electric

charge.

• Electric Field

• Electric Force

• Electric Poles

• Electric charge

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An electric field that is + moves __________ to/from the charge.

• Inward

• Outward

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How could I increase the strength of my electromagnet?

• More Batteries

• Smaller paper clips

• More loops of copper wire

• Larger Nail