Whether a material is magnetic or not depends on which of the following?
As electrons move, they make
A compass needle responds to a magnetic field, because the compass needle is a
What is created when a magnet moves through a coil of wire?
What is created when a wire moves between the poles of a magnet?
What can demagnetize a magnet?
A coil of wire with an electric current in it is called a(n)
A coil of wire that has a soft iron core and that acts as a magnet when an electric current is in the coil is called a(n)
Increasing the number of loops per meter in the coils of a solenoid is one way to
Increasing the electric current in the wire is one way to
What did Faraday’s experiments with magnets and electromagnetic induction demonstrate?
What can you make visible by sprinkling iron filings around a magnet?
How does a galvanometer make use of the relationship between electric current and magnetic fields?
Which of the following is NOT true about an electromagnet?
What metal is used to make ferromagnets?
Which of the following will induce an electric current in a wire?
In the region around a magnet in which magnetic forces act exists the
An electric fan has an electric motor inside to change
The marked end of a compass needle always points directly to
A device that increases the voltage of an alternating current is called a(n)
What do you end up with if you cut a magnet in half?
Each end of a bar magnet is a(n)
A _________ converts mechanical energy into electrical energy.
This occurs when an electric current is made by a changing magnetic field.
This device increases or decreases the voltage of alternating current.
A device that increases or decreases the voltage of alternating current is a(n) ____________.
Any material that attracts iron or materials containing iron is called a(n) ______________.
The process of creating a current in a circuit by changing a magnetic field is called ____________.
The interaction between electricity and magnetism is called ______________.
A device that converts electrical energy into mechanical energy is called a(n) ______________.
A device that converts mechanical energy into electrical energy is called a(n) _____________.
One of two points with opposing magnetic qualities is called a(n) ________________.
An attraction or repulsion caused by spinning electric charges is a(n) ________________.
A coil of wire containing an electric current is a(n) ______________.
A coil of wire with an iron core that becomes magnetized when a current is introduced is known as a(n) ________.
A ________ has two poles, exerts magnetic forces and is surrounded by a magnetic field.
Each end of a bar magnet is a ____________.
An electric motor uses ___________ to change electrical energy into mechanicaal energy.
The relationship between electricity and magnetism is known as ________________.
A wire carrying current will cause a compass needle to move due to the ____________.
A device that increases or decreases the voltage of alternating current.
Any material that attracts iron or materials containing iron.
The process of creating a current in a circuit by changing a magnetic field.
The interaction between electricity and magnetism.
A device that converts electrical energy into mechanical energy.
A device that converts mechanical energy into electrical energy.
One of two points, such as the ends of a magnet, that have opposing magnetic qualities.
The attraction or repulsion created by spinning electric charges.
A loop of wire containing a current.
A loop of wire containing an iron core.