Science 8 Chap.18

What are a few examples of magnetic materials?

Iron, cobalt, nickel, and gadolinium
Define Electromagnetism

the interaction between electricity and magnetism.
What is a solenoid?

a coil of wire with an electric current in it.
What is an electric motor?

a device that converts electrical energy into mechanical energy.
What is a Galvanometer?

an instrument that detects, measures, and determines the direction of a small electric current.
What are three ways to induce a current in a circuit?

Move a circuit into or out of a magnetic field

Rotate a circuit in a magnetic field

Vary the intensity of the magnetic field
What is a generator?

a machine that converts mechanical energy into electrical energy.
Define Alternating Current

n electric current that changes direction at regular intervals.
Define Transformer

increases or decreases the voltage of an alternating current.
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Card Set

Science 8 Chap.18

Description

Electromagnetism

Updated

2012-03-22T02:16:36Z