Basic Concepts in Electricity and Magnetism

In a piece of magnetized metal, what are the electrons doing?

• They are spinning/going in the same direction

• They are randomly oriented

• They are stationary

• They are moving in opposite directions

What is a proton?

• A particle with a negative charge.

• A particle with no charge.

• A particle with a positive charge.

• A particle that orbits the nucleus.

Give three examples of conductors.

• Copper, aluminum, wood

• Copper, iron, brass

• Plastic, rubber, glass

• Copper, steel, paper

When you hold two like poles face each other, what happens?

• They attract each other.

• They repel each other.

• They create a magnetic field.

• They neutralize each other.

What is an electron?

• A particle with a positive charge.

• A particle with no charge.

• A particle with a negative charge.

• A type of electromagnetic wave.

What 3 components do you need to build a series circuit?

• a battery, wires, and a lightbulb

• a battery, resistors, and a switch

• a capacitor, wires, and a lightbulb

• a battery, a fuse, and a diode

What is a conductor?

• A material that allows electricity to flow.

• A material that prevents electricity from flowing.

• A type of electrical device used to store energy.

• A material that only conducts heat.

What is an insulator?

• A material that conducts electricity well.

• A material that does not conduct electricity.

• A material that absorbs heat.

• A material that reflects light.

What is a closed circuit?

• A complete electrical connection.

• An incomplete electrical connection.

• A circuit that is open and not functioning.

• A circuit that only allows current to flow in one direction.

Give three examples of insulators.

• Rubber, glass, and plastic

• Copper, aluminum, and steel

• Wood, paper, and cotton

• Water, mercury, and salt