Vocabulary Words
Any material that attracts iron or materials containing iron
What is a magnetic material?
a coil that has a soft iron core and that acts as a magnet when an electric current is in the coil.
What is an electromagnet?
the reason for stepping up voltage in a transformer.
What is reduce energy (power) loss?
The two parts of a magnetic field are known as these.
What are the north and south pole?
One of two points, such as the ends of a magnet, that have opposing magnetic qualities.
What is a magnetic pole?
Created when a wire moves between the poles of a magnet
What is an electric current?
ALL the causes of the increase of magnetic field strength.
What is increased coils/increased motion/increased current
a device that increases or decreases the voltage of alternating current
What is a transformer?
This is created when domains in an magnetic material point in the same direction
What are magnetic fields/magnetism?
a region around a magnet that magnetic materials feel a force
What is magnetic fields?
an example of a use of electromagnets
What is a bell? (or other acceptable answers)
the effect of leaving a magnet still near a solenoid
What is the electric current stops?
for energy to get to your home, voltage is _________ at the power plant, then it is ___________ before the current is used.
What is increased/stepped up and decreased/stepped down?
The closer the magnetic field lines are together, the __________ it is.
What is stronger?
the process of creating a current in a circuit by changing a magnetic field
What is electromagnetic induction?
An electromagnet requires a ____________ circuit
What is complete
a labelled diagram of the right hand rule for a solenoid
appropriate diagram
A transformer that induces a larger current in the secondary coil is known as this.
What is a step-down transformer?
three methods of creating a magnet
What is striking, stroking and a current (electromagnet)?
a device that converts mechanical energy into electrical energy
What is an electric generator?
Electric current can be best induced in a wire by.
moving a magnet up and down near the wire
A generator works by moving a(n) ____________ across the magnetic field lines of a magnet.
a rotating coil crosses the magnetic field lines of a magnet, inducing electric current in the wire
Something that can demagnetize a magnet.
What are high temperatures or severe impact?