Electromagnets and Electric Motors

The ______ is the part of the motor that remains unmoving and creates an electrical field.

Tags

NGSS.MS-PS2-3

Which of the following can be done to DECREASE the strength of an electromagnet?

• Add a Nickel core

• Unwrap the coil

• Remove the core

• Use a battery with lesser voltage

• Connect two batteries together then add the wire to each end

An electric motor is a device that converts _____ energy into _____ energy.

• Electrical

  Inertia

• Electrical

  Mechanical

• Mechanical

  Electrical

• Potential

  Kinetic

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-3

Which of the following is NOT an essential component of electromagnets?

• Battery

• Coil wire

• Magnetic core

• Metal paperclips

Label the parts of the electromagnet.

a

b

c

d

iron core

voltage source

solenoid

wire

Which of these is a way to make an electromagnet stronger?​ ​ ​ ​ (a)  

• wrapping the wire around the iron core more

• putting a switch in the electrical circuit

• replacing the copper wire with plastic wire

• replacing the iron core with a copper core

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

Which of the following is used to measure electromagnet strength?

• Voltage Breaker

• Transformer

• Galvanometer

• Electric Generator

The _____ is the part of the motor that converts electrical energy into mechanical motion.

The _____ reverses the direction of the current.

• Commutator

• Rotor

• Stator

• Axle

Tags

NGSS.HS-PS2-5

The ______ current motor has electrical current that flows only in 1 direction