xavier catholic college physics motors & generators

XAVIER CATHOLIC COLLEGE

PHYSICS

MOTORS & GENERATORS

Worksheet 8: • 1.7 Students learn to: describe the main features of a DC electric motor and the role of each feature

Features of a DC Motor Using the web-address given below complete this worksheet: http://electronics.howstuffworks.com/motor2.htm 1. Using the information from the above page, label the brushes.

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2. Click on next page and identify and label the following parts shown on the picture below: a. Split-ring commutator b. Armature c. Laminated core d. Coils e. Axle

3. Label the two items that you can see inside the casing of the DC motor.

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Using the RHG rule confirm the polarity of the electromagnet as shown in the diagram below.

4. Give a brief explanation or definition of the following terms used in the page referred to below: http://electronics.howstuffworks.com/motor5.htm a. b. c. d.

Armature Axle Commutator Brushes

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5. Using the last page in the series, write down a short list of items that use an electric motor:

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