Electricity and Magnetism

An electric circuit is ________________.

• a continuous pathway that can carry an electric current
• An open pathway that can carry electric current
• An object that resists the flow of energy
• An object that attracts metal

Static electricity is ____________________.

• When positive and negative charges repel each other
• When positive and negative charges are not present
• The flow of positive charges
• the buildup of electric charges in one place

A flow of electric charges is  ____________.

• an insulator
• a circuit
• a conductor
• an electric current

A material that slows the flow of heat and electricity is ____________________.

• a conductor
• an insulator
• a current
• a resistor

A magnet that has coils of current-carrying wire around an iron core is called __________________.

• a conductor
• an insulator
• an electromagnet
• a current

Which material would be a good conductor?

• wood
• cardboard
• metal
• paper

What does a switch do for a circuit?

• It keeps the circuit closed
• It makes the circuit opened or closed
• it keeps the circuit on
• it does not help the circuit

When I bake muffins in the oven, what type of energy am I using?

• heat

• motion

• sound

• light

When I turn on my lamp to read the newspaper, what type of energy is being used?

• sound

• light

• heat

• motion

What types of materials DO allow an electric current to flow through?

• conductors

• insulators