True or False: ALL kinds of metals, including Aluminum, are attracted to magnets.
What is FALSE?
If you add more coils to an electromagnet, it gets...
What is stronger?
What are (at least) two ferromagnetic metals?
What are Iron, Nickel, and Cobalt?
Theses pretty lights show up at the poles when the solar wind hits the Earth's magnetic field.
What is Aurora?
A vocabulary term that means "A material that allows electricity or heat to easily move through it".
What is conductor?
The Earth has a magnetic field because its core is surrounded by moving molten metal mostly made up of ___.
What is iron?
Vocabulary term that means "A device that turns chemical energy into electrical energy".
What is a battery (cell)?
The battle of the currents was between...
Who are Edison and Tesla?
The Earth makes a _______ move because of its magnetic field.
What is compass?
What are the two types of electric current?
What are Alternating (AC) and Direct (DC) current?
You increase the strength of an electromagnet by adding coils or...
What is increasing the current?