Electromagnet Vocab
Objects that exert an invisible force called magnetic force.
What is Magnet?
A coil of wire wrapped around an iron core.
What is an electromagnet?
Is a circuit open or closed if you haven't turned on the switch?
What is open?
What is a material that lets electric current pass through?
What is a conductor?
What makes something magnetic?
The domains in the object must be aligned or lined up.
A temporary magnet produced by an an electric current.
What is electromagnet?
Any of a class of devices that convert electrical energy to mechanical energy.
What is an Electric Motor?
What produces current to an electrical circuit?
What is a battery (or other electrical source)?
What is a material that blocks an electric current from passing through?
What is an insulator?
Tiny groups of charged atoms inside iron.
What are domains?
The ends of a Magnet.
What is poles?
An electric machine that converts mechanical energy into electrical energy.
What is an Electric Generator?
True or False: When you turn on a light, the switch is opening the circuit.
What is false?
Which of these materials is not a conductor: copper, aluminum, gold, or wood?
What is wood?
In magnetic forces, like poles ______________ and opposite poles ______________.
Like poles repel (push apart) and opposite poles attract (stick together).
A stream of electrically charged particles flowing at high speeds from the sun.
What is solar winds?
What 2 ways can you increase the power of an electromagnet?
By increasing the number of loops of wire around the solenoid and increasing the current.
An electrical circuit is made up of a wire, a light bulb, a switch, and a ____________.
What is a battery (or electrical source)?
Which of these materials is a conductor: rubber, glass, air, silver?
What is silver?
What happens when you cut a magnet into 2 pieces? Why?
Each piece will have a north pole and south pole because the domains inside the magnet re-align.
The region of Earth's magnetic field shaped by solar winds
What is magnetosphere?
Why does a compass needle point north?
Because the magnetic pole closest to the geographic north pole is the magnetic south pole.
This circuit is made up of only a single path of electricity?
What is a series circuit?
Metals are examples of ________________ and plastic is an example of ___________________.
What is conductor, insulator?
Jacob found out that he could attract two magnets through a piece of cardboard, but not a thick block of wood. This is the reason why.
What is the block of wood was too thick for the magnetic force?