Electricity and Magnetism Review

Front

What happens when you break a bar magnet into pieces?

Back

You would have multiple complete magnets, each with a north and south pole.

Front

What is the role of steam in a turbine generator?

Back

Steam is used to spin the turbine generators, converting thermal energy into mechanical energy.

Front

What type of transformer increases voltage?

Back

A step-up transformer increases voltage.

Front

What device converts mechanical energy to electrical energy?

Back

A generator converts mechanical energy to electrical energy.

Front

What is the energy transfer in a motor?

Back

The transfer of energy in a motor is from electrical to mechanical.

Front

What is the principle behind electromagnetism?

Back

Electromagnetism is the interaction between electric currents and magnetic fields.

Front

Define electric current.

Back

Electric current is the flow of electric charge, typically measured in amperes.

Front

What is Ohm's Law?

Back

Ohm's Law states that V = IR, where V is voltage, I is current, and R is resistance.

Front

What is the function of a capacitor in a circuit?

Back

A capacitor stores electrical energy temporarily and releases it when needed.

Front

What is the difference between AC and DC current?

Back

AC (Alternating Current) changes direction periodically, while DC (Direct Current) flows in one direction.