Parallel and Series Bulbs


Circuit for Worksheet 1	Circuit for Worksheet 2	Large Scale Version

Abstract

Parallel and series combinations of light bulbs with worksheets.

Portable

Yes

Principles Illustrated

Currents and voltages in parallel and series circuits

NCEA & Science Curriculum

SCI 1.2, PHYS 1.3, PHYS 2.6

Teacher Guide

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Instructions

Set up circuits with one bulb disconnected. Ask students to predict what will happen when the remaining bulb is connected and then test their predictions. Photos can be used instead of the physical equipment if necessary. You'll need the worksheets answers.

We can also set up large scale displays with a car battery for group work.

Safety

Use low voltage bulbs and power supplies.

Individual teachers are responsible for safety in their own classes. Even familiar demonstrations should be practised and safety-checked by individual teachers before they are used in a classroom.

References

Lillian McDermott at the University of Washington has developed many exercises somewhat similar to this one. Click here to go to the U of W Physics Education Group's web site. See Physics by Inquiry and Tutorials in Introductory Physics for specifics.

PIRA 5F20.50

Photos

Use these photos to develop your own worksheets and activities or use the worksheets below.

Small jpgs (320x240)

Worksheet_1_Off || Worksheet_1_AB || Worksheet_1_ABC

Worksheet_2_Off || Worksheet_2_AB || Worksheet_2_ABC

Large jpgs (2048x1536)

Worksheet_1_Off || Worksheet_1_AB || Worksheet_1_ABC

Worksheet_2_Off || Worksheet_2_AB || Worksheet_2_ABC

Worksheets

Worksheet_1.pdf || Worksheet_1_Answer_Photo.jpg

Worksheet_2.pdf || Worksheet_2_Answer_Photo.jpg