Understanding DC Motors

What does a DC motor do?

• A DC motor stores electrical energy for later use.

• A DC motor generates electrical energy from mechanical motion.

• A DC motor transforms mechanical motion into thermal energy.

• A DC motor converts electrical energy into mechanical motion.

What type of energy does a DC motor use?

• Mechanical energy

• Solar energy

• Direct current (DC) electricity

• Alternating current (AC) electricity

What type of energy does a DC motor produce?

• Chemical energy

• Thermal energy

• Mechanical energy

• Electrical energy

Can you name one use of a DC motor?

• Powering a light bulb

• Driving wheels in electric vehicles

• Charging a smartphone

• Heating a room

What happens to electrical energy in a DC motor?

• Electrical energy is dissipated as sound energy.

• Electrical energy is converted into mechanical energy.

• Electrical energy is transformed into thermal energy.

• Electrical energy is stored as chemical energy.

What is the main part of a DC motor called?

• rotor

• stator

• commutator

• armature

How does a DC motor help in toys?

• A DC motor powers the movement and functions of toys.

• A DC motor is used for toy decoration only.

• A DC motor generates sound effects in toys.

• A DC motor controls the color of the toy lights.

What do we call the energy that makes the motor spin?

• Mechanical energy

• Chemical energy

• Electrical energy

• Thermal energy

What is the role of magnets in a DC motor?

• Magnets are used to store electrical energy in a DC motor.

• Magnets help in cooling the motor during operation.

• Magnets are only used in AC motors, not in DC motors.

• Magnets create a magnetic field that interacts with the current to produce rotational motion.

What happens when you turn on a DC motor?

• The DC motor starts to rotate.

• The DC motor emits a loud noise.

• The DC motor cools down immediately.

• The DC motor stops functioning.