Magnets
A magnet is something that is attracted to...
Iron
The pathway along which electricity flows.
Circuit
Opposite charges do what?
Attract
List of the materials needed to make an electromagnet.
What is a battery, wire in a coil, and a nail
The energy produced when a coiled wire is spun around a magnet.
What is electrical energy?
The north and south poles of two magnets would... (attract or repel)
Electricity is the flow of...
Electrons
The invisible region around any charged object where an electric force is called...
Electric field
Lightning is an example of...
Static Electricity
(Series or Parallel) circuits require more wiring but when one light goes out, that is the only one that does
Parallel
This picture (show figA) represents a...
nonmagnetic material, magnetic material, or a magnet
Nonmagnetic Material
Mrs. Perko rubbed a balloon on her hair. Some electrons from her hair transferred to the balloon. Now the balloon is (positively or negatively) charged.
Negatively
An electrically charged object does not have to ____________ another charged object to apply an electric force to it.
Touch
Earth is a large...
Magnet
When a magnet breaks in half - which option is correct?
a) one half of the magnet is North, the other is South
b) each piece of the broken magnet has a North and a South pole
B
A group of atoms where the magnetic fields of the atoms point in the same direction is called a...
Magnetic Domain
Materials that allow electricity to flow easily are called...
Electric conductors
Materials that don't allow electricity to flow easily are called...
Electric insulator
A circuit only works if it is (closed or open)
Closed
What is one material that is a good insulator
wood, rubber, plastic
A temporary magnet made with a current-carrying wire coil wrapped around a magnetic core is called an....
Electromagnet
The force that two electrically charged objects apply to each other is called...
Electric Force
Which metal is the best electric conductor that is commonly used.
Copper
The Greek word for amber is...
Elektron
What to do to increase the strength of an electomagnet.
What is add more power, increase the size of the core or increase the number of coils?