Big Ideas
What is magnetic fields?
Every magnet has a _______ pole and a ________ pole.
What is north and south?
Magnetic field lines show the direction of the magnetic field. What directions?
What is north and south?
Electric current is the flow of ____________.
what are electric charges?
What is an object that creates a magnetic field?
magnet
Magnetic fields act at a distance and have __________ and ____________.
What is strength and direction?
What kind of poles attract?
What is opposite?
If a magnetic field has closer lines the field is _______
What is stronger?
A current carrying wire creates a magnetic _______
What is a field?
What is the area where magnetic forces act?
Magnetic field
___________ current creates magnetic fields
What kind of poles repel?
same poles repel
what are the poles?
More current = ___________ magnetic field
What is stronger?
In science to pull together is to....
attract
_______________ __________can cause objects to move, rotate or change direction.
What are magnetic forces?
Breaking a magnet creates smaller ________
what are magnets?
Iron fillins show the ________ of a magnetic field.
What is the shape?
What creates an electromagnet?
What is an electric current?
What shows the field direction and strength?
What are field lines?
______ is a magnet made using an electric current.
What is an electromagnet?
Break a magnet creates how many poles?
two poles.
Can you turn an electomagnet off?
Yes. You can turn an electromagnet on or off.
What are three things that can make a electromagnet stronger?
More current
More coils
An iron core
What is the flow of electric charges?
What is an electric current?