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Magnetic Reading

Magnetic Reading

Assessment

Presentation

Physics

5th - 7th Grade

Hard

Created by

Joseph Anderson

FREE Resource

10 Slides • 10 Questions

1

Fun with Magnets

By Hamad Faisal

2

A magnet is a metal which attracts or repels other materials.​ Magnets have two poles, north and south. Magnets have an invisible magnetic field that allows them to attract or repel certain materials.

About magnets

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3

Open Ended

Can you name some material that are attracted or repelled by magnets?

4

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According to Greek legend, magnetism was first discovered by a shepherd named Megnes, who lived in Megnesia, Greece. Megnes was herding his sheep through the mountains.

Discovery of Magnets

5

Multiple Choice

Who Discovered Magnets?

1

Magnus

2

Magnecia

3

Magman

4

Morgan

6

Multiple Choice

Where Did he live?

1

Megnesia, Greece

2

Megnesia, Greenland

3

Magneia, Greekland

7

Draw

draw the staff of Magnus on a big magnetic rock.

8

Permanent magnets are perhaps the most common type they are used to manufacture refrigerator magnets, as well as in jewelry making.

Most common type of Magnet?

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9

Temporary magnets can be useful in applications that generate a temporary magnetic field and require a magnetic response for the duration of the field.

Temporary Magnets

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10

Fill in the Blanks

Type answer...

11

Magnetization

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​Magnetization is the process of turning a magnetic material into a temporary magnet.

12

Take a magnetic metal object and rub a strong magnet on it by placing the magnet on one end and pulling it towards the other end. these steps should be repeated at lest 70 to 80 times.​

Single touch method

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13

Electromagnets can be created by wrapping a wire around an iron nail and running current through the wire. The electric field in the wire coil creates a magnetic field around the nail.

​Electromagnet

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14

Multiple Choice

one method of magnetization?

1

scratching the magnet

2

Single touch method

3

breaking the magnet

4

throwing the magnet down

15

Demagnetization of Magnet

Demagnetization is to lose magnetic properties or remove magnetic properties from a magnet.

ways to demagnetize Magnets:

rough handling.

hammering the magnet.

passing an alternating current around the magnet.

dropping the magnet on the floor.

heating the magnet to a very high temperature.

16

Draw

draw a way to demagnetize a magnet.

17

Draw

Draw a way to magnetize a Magnet.

18

Draw

draw some magnetic keepers

19

Poll

was the presentation good

yes

Amazing

good

bad

20

​The End

Thank You

Fun with Magnets

By Hamad Faisal

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