Solenoids and Electromagnets

Solenoids are used to convert electromagnetic energy into

motion

Solenoids provide a burst of ___________ to move a specific part of a device.

power

A ________________ is a coil of wire with electric current flowing through it.

solenoid

A solenoid is a coil of wire with ______________ flowing through it.

electric current

Current flowing through a solenoid produces a _____________ field.

magnetic

A solenoid has _______________ and south magnetic poles.

north

As the number of coils in a solenoid increases, the strength of its magnetic field

increases

As the number of coils in a solenoid decreases, the strength of its magnetic field

decreases

As the amount of current moving through a solenoid increases, the strength of the magnetic field

increases

As the amount of current moving through a solenoid decreases, the strength of the magnetic field

decreases

The combination of a solenoid and a ferromagnetic bar is a/n

electromagnet

As the number of coils in a electromagnet increases, the strength of its magnetic field

increases

As the number of coils in an electromagnet decreases, the strength of its magnetic field

decreases

As the amount of current running through an electromagnet increases, the strength of its magnetic field

increases

As the size of the ferromagnetic bar in an electromagnet increases, the strength of its magnetic field

increases

As the amount of current running through an electromagnet decreases, the strength of its magnetic field

decreases

As the size of the ferromagnetic bar in an electromagnet decreases, the strength of its magnetic field

decreases

As the ferromagnetism of the bar in an electromagnet increases, the strength of its magnetic field

increases

As the ferromagnetism of the bar in an electromagnet decreases, the strength of its magnetic field

decreases

An electromagnet is turned on and off by starting and stopping its

electric current