Electromagnets

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# Electromagnets - PowerPoint PPT Presentation

Electromagnets. Physics First. Drill. 1. What is a permanent magnet? Give 3 examples of permanent magnets. 2 . What the poles of a magnet? How many 3 . Like poles _________ but unlike poles __________. Introduction ( 3 minutes).

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## PowerPoint Slideshow about 'Electromagnets' - quincy

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Presentation Transcript

### Electromagnets

Physics First

Dr. Gupta

Drill

1. What is a permanent magnet?

Give 3 examples of permanent magnets.

2. What the poles of a magnet? How many

3. Like poles _________ but unlike poles __________

Dr. Gupta

Introduction ( 3 minutes)

Go over drill

Homework due on Friday

Dr. Gupta

Objective

Students will be able to conduct an experiment to study

a. the effect of electromagnet on a permanent magnet and also

b. to compare the electromagnet to a permanent magnet,

in order to understand the role of magnets in every electrical devices that creates motion.

Dr. Gupta

Engager- (10 minutes)

Students will watch a video/ demo software to view the effect of permanent/ electromagnet on a closed coil.

Dr. Gupta

Exploration : (35 minutes )

Students will carry out experiments ( 15.2 Electromagnets, page 117-118 of Investigation physics) to study

• the effect of electromagnet on a permanent magnet and also
• to compare the electromagnet to a permanent magnet.
• Explanation: Students will explain and write down their observation as per “ Thinking about what you observed”

Dr. Gupta

Extension : Problem solving/ Review (10 minutes)

Section 15.1 Reviewing Concepts

Dr. Gupta

Homework due on 3/15/13

Section 15.1

Page 379

Dr. Gupta

Exit ticket

1. The north pole of a permanent magnet ________ south pole of another magnet (attracts/repels). 2. The south pole of a permanent magnet ________ north pole of another magnet (attracts/repels). 3. What is an electromagnet?

Dr. Gupta