Motor and Electric Currents

A motor will make electrical energy change into 

• motion energy
• chemical energy
• mechanical energy
• nothing

Unlike poles of a magnet will

• Repel
• Attract

Tags

NGSS.MS-PS2-3

Like poles of a magnet will 

• Repel
• Attract

Tags

NGSS.MS-PS2-3

What is formed when a wire in an electric circuit is wrapped around an iron core producing a magnetic field?

• electromagnet
• generator
• magnet
• electric motor

Tags

NGSS.HS-PS2-5

Generators are devices that convert _____ energy into _____ energy.

• chemical; mechanical
• mechanical; electrical
• electrical; mechanical
• potential; kinetic

Tags

NGSS.HS-PS3-3

Electric motors are devices that convert _____ energy into  _____ energy.

• electrical; mechanical
• mechanical; electrical
• chemical; potential
• mechanical; kinetic

In large generators in power plants, ___________ rotate inside a coil of wire to produce an electric current.

• Wind
• Water
• Magnets
• Circuits

Tags

NGSS.HS-PS2-5

What two forces are required for generators and electric motors to work? 

• magnetism and thermal 
• electricity and thermal 
• electricity and magnetism 
• magnetism and radiant 

Tags

NGSS.MS-PS2-3

What word best fits this definition: A device which converts electrical energy into mechanical energy usually through the rotation of an electromagnet in the field of a stationary magnet.

• armature

• system

• motor

• electromagnet

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-3

Which word best fits this definition: The rotating part of a motor.

• system

• brush

• electromagnet

• armature