R17_ElectricRefresher

How does the form of energy change for a battery releasing energy?

• Electrical energy is converted to thermal energy.
• Mechanical energy is stored in the battery until it is released into chemical energy

• Nuclear energy is released as the battery discharges.
• Chemical energy in the battery is converted to electrical energy.

What is an electric circuit?

• An electric circuit is a closed loop that allows electric current to flow.
• An electric circuit is a method of generating electricity.
• An electric circuit is a device that stores electricity.
• An electric circuit is used to shock students who don't remember things (NOT TRUE)

Match the materials and their descriptions

• type of material that allows electricity

• EMF or electromotive force, the push forward of electrons

• direct current

• semiconductor

• material that has conductivity between a conductor and an insulator

• Form of electric current where electrons always go in one direction

• voltage

• conductor

• type of material that resists electricity

• insulator

How are electric motors and generators related?

draw the relationship between voltage, current, and resistance

Why is it important to understand electricity?

• It is important to understand electricity for safety, effective use of devices, troubleshooting, and informed energy decisions.
• Electricity is only important for engineers.
• Understanding electricity is not necessary for daily life.
• Electricity is only relevant in scientific research.