EM Forces Week 1

Magnetism is an example of a(n)

• electromagnetic force

• chemical reaction

• type of energy

• contact force

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Which of the following is not an electromagnetic force?

• Electricity

• Friction

• Magnetism

A material that electrons can move through easily is called a(n)

• conductor

• insulator

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NGSS.MS-PS2-5

Which two materials are electrical conductors? Choose two.

• Wood
• Rubber
• Steel

• Copper

Which two materials are electrical insulators? Choose two.

• Aluminum
• Rubber

• Plastic

• Iron

What is electric current?

• Electric current is the flow of electric charge.
• Electric current is the speed of electrons in a wire.
• Electric current is a type of battery.
• Electric current is the measure of voltage in a circuit.

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A pathway that allows electrons to flow

• resistor

• battery

• circuit

• insulator

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All magnetic objects are made of metal, but not all metals are magnetic.

• True

• False

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A magnetic field is

• the north or south poles of a magnet

• a property of all metal

• a form of kinetic energy that surrounds a magnetic object

• the area around a magnet that has magnetic force

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The same poles of two magnets will

• repel each other
• attract each other
• cancel each other out
• remain stationary

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