Ch15L2: Electric Current and Electric Circuits

What is an electric current?

• The movement of electrically charged particles in one direction

• Electrons move from atom to atom

• The path through which an electric current flows

• Sources of energy

Because of their motion, moving electrons contain ___________________ energy.

• Potential

• Stored

• Kinetic

• Thermal

As electrons move from atom to atom, kinetic energy can transform into _______________ or ________________ energy.

• light

• thermal

• potential

• kinetic

What are the 2 types of electric currents?

• Open Current

• Closed Current

• Direct Current

• Alternating Current

An electric current that flows in only one direction is a ______________ current.

• alternating

• direct

• open

• closed

What type of electric current frequently changes direction?

• Alternating

• Direct

• Open

• Closed

Which electric current is most often used in homes and businesses?

• Alternating Current

• Direct Current

• Open Current

• Closed Current

What is an electric circuit?

• Energy transformations occur when current flows

• The path through which an electric current flows

• The movement of electrically charged particles in one direction

• The movement of electrically charged particles in one direction

What kind of circuits are found in flashlights, doorbells?

• Direct current

• Alternating current

• Closed current

• Open current

What can be used as a source of energy?

• Batteries

• Generators

• Solar cells

• Fuel cells