Exploring Current and Magnetism (19 Do Now)

What is the primary function of an electric motor?

• To convert electrical energy into mechanical energy

• To convert mechanical energy into electrical energy

• To store electrical energy

• To increase electrical voltage

Which component of an electric motor is responsible for creating a magnetic field?

• Commutator

• Armature

• Stator

• Brushes

In a generator, what is the role of the rotor?

• To convert electrical energy into mechanical energy

• To convert mechanical energy into electrical energy

• To store energy

• To regulate voltage

Which of the following is a common use of electric motors in everyday life?

• Powering a wind turbine

• Running a refrigerator compressor

• Generating electricity in a power plant

• Charging a battery

What is the principle behind the operation of a generator?

• Ohm's Law

• Faraday's Law of Electromagnetic Induction

• Newton's Third Law

• Coulomb's Law

Which part of a generator is responsible for converting mechanical energy into electrical energy?

• Stator

• Rotor

• Commutator

• Brushes

What type of current is typically produced by a generator?

• Direct Current (DC)

• Alternating Current (AC)

• Static Current

• Pulsating Current

In an electric motor, what is the function of the commutator?

• To reverse the direction of current

• To increase voltage

• To store energy

• To reduce friction

Which of the following devices is an example of a generator?

• Electric fan

• Car alternator

• Electric drill

• Hair dryer

What is the main difference between a motor and a generator?

• Motors convert mechanical energy to electrical energy, while generators do the opposite.

• Motors convert electrical energy to mechanical energy, while generators do the opposite.

• Motors and generators perform the same function.

• Motors are used in power plants, while generators are used in vehicles.