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"I sent CoolStuff to a new teacher I'm
mentoring. I use CoolStuff all the time and love it. The kids love it and learn from it!"
~ Dixie D. from Texas
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Lab #35.2
Electric Circuits: An Open &
Short Case
Purpose
In
this activity, students will
explore open circuits and short
circuits.
Discussion
Electrical
circuits are all around us.
(We often appreciate them
most when the power goes
out.) Most circuits work
perfectly well (when power
is available). But
electrical circuits can
fail. Two common modes of
circuit failure are open
circuits and short circuits.
In this activity, we will
learn how these circuit
failures are similar and how
they are different.
We will be using an ammeter
to help us with this
investigation. An ammeter is
a simple device used to
measure electric current—the
rate at which charge flows
through a circuit. Current
is measured in amperes
(“amps”).
Required Equipment
2 D-cell
batteries, 5 connecting wires, 2
miniature bulbs (1.5-volt or
2.5-volt flashlight bulbs), 2
miniature bulb sockets, DC
ammeter (0–5A)
Download
Student Worksheet
Teacher Notes
Return to Lab Menu
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