Page 35 - Science Course 3 (Book 2)
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Electric Current and Electric Circuits Mo9-L2a: What is Electric Current and
an Electric Circuit?
Lesson 2
Let’s Begin
In this topic, you will learn the following Electric Current—Moving Electrons
lessons:
Electrons have the property of negative electric
Mo.9–L2a: What is Electric Current and an charge.
Electric Circuit?
Mo.9–L2b: What are the Two Types of Electric Many of the electrons of an electric conductor are
Circults? free to move from atom to atom.
When free electrons move in the same direction, an
What is Electric Current and an electric current is produced.
Mo9–L2a
Electric Circuit?
An electric current is the movement of electrically
KEY CONCEPTS: charged particles.
1. How are electric current and electric charge related?
2. What are the parts of a simple electric circuit?
Vocabulary A-Z
Let us learn some vocabulary
electric current
the movement of electrically charged particles.
As electrons move from atom to atom, their kinetic
energy transforms to other useful energy forms,
such as light and thermal energy.
electric circuit Free Electron
a closed, or complete, path in which an electric
current f ows.
Moving electrons, or an electric current, is one of the
most common forms of energy.
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