Electricity and Magnetism

When two magnets repel each other which poles are facing each other?

• North and South
• South and North
• North and North
• Positive and Negative

When is an object negatively charged?

• When it gains electrons
• When it gains protons
• When it loses electrons
• When it has more neutrons

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What is a conductor?

• A material that stops electric current from flowing
• A material that allows electric current to flow easily

Which is an example of a conductor?

• Glass
• Plastic
• Copper
• Wood

What is an insulator?

• A material that DOES NOT allow electric current to flow
• A material that DOES allow electric current to flow

Which is an example of an insulator?

• Rubber
• Copper
• Iron
• Steel

What is static electricity?

• The buildup of neutrons
• Electricity flowing through a current
• Particles staying still
• The buildup of electric charges on an object

Tags

NGSS.MS-PS2-3

What is current electricity?

• Current electricity involves a continuous flow of neutrons
• Current electricity involves a continuous flow of protons
• Current electricity is a single transfer of electrons
• Current electricity is a steady flow of electrons

What is magnetism?

• An invisible force produced by certain metals
• A visible force produced by certain metals
• An invisible force produced by all metals
• A visible force produced by mixtures of metals

Tags

NGSS.MS-PS2-3

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How do you increase the strength of an electromagnet?

• Decrease the number of batteries and increase the number of coils
• Increase the electric current and decrease the batteries
• You cannot strengthen an electromagnet
• Increase the electric current and increase the number of coils

Tags

NGSS.MS-PS2-3