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ELECTRICITY AND MAGNETISM—ELECTROSTATICS continued on next page.
Electrostatics—Multi-Demonstration Kit
AP7029
Electricity and Magnetism—
Electrostatics, continued
Flask Form Electroscope
AP7150
Photoelectric Effect Demonstration See page 244.
Electroscope Without Flask
Insert this simple device into the top of a 250-mL Erlenmeyer flask and you instantly
have a flask form electroscope. Start charging the ball terminal by contact or induction
and watch the foil leaves respond. Flask sold separately.
Catalog No. Description Price/Each
AP4631 Electroscope Without Flask $15.05
GP3045 Flask, Erlenmeyer 5.20
Electrophorus
AP6493
Electroscope Without Flask
AP4631
Electrostatics—
Multi-Demonstration Kit
By: The Flinn Staff
Teach the basic principles of electrostatics using this comprehensive, all-in-one kit
that contains all the equipment needed for five demonstrations!
• Charging a Flask Form Electroscope—Verify the existence and properties of static
electric charge. Demonstrate charging the electroscope by conduction and by
induction.
• Electrophorus and Condensing Electroscope—Show how much greater amounts
of charge can be stored using an electrophorus and a condensing electroscope.
• Charge Distribution and Discharge—Use two condensing electroscopes to show
how charges distribute and how a lightning rod works.
• Faraday’s Cage and “Ice Pail”—Show students how charge accumulates on the
outside of a conducting shell.
• Curving Water into a Beaker—“Bend” a stream of water using an externally charged
object, proving that water molecules are polar.
Includes detailed instructions and reproducible student worksheets for each
demonstration.
Catalog No. Description Price/Each
AP7029 Electrostatics—Multi-Demonstration Kit $146.00
Electrophorus
By: The Flinn Staff
Demonstrate laws of electrostatic induction,
generate and store large electrostatic charges and effectively transfer charges with
this classic device. Simply rub the acrylic plate with fur or silk to build up a charge.
Then holding the insulated handle, induce a charge from the acrylic plate onto the
aluminum disk. The disk can then be moved to transfer the charge to an electrostatic
device, such as an electroscope or Leyden jar. The built-up charge will continue
on the acrylic plate so you can return with the aluminum disk repeatedly without
recharging the plate.
Apparatus includes aluminum disk with insulated handle, charging plate and
complete instructions. Charging materials not included.
Catalog No. Description Price/Each
AP6493 Electrophorus $28.10
Flask Form Electroscope
By: The Flinn Staff
Ready to use! Simply hang two pieces of foil from
the hook and insert into the flask. Includes Teacher Notes, a reproducible student
worksheet, electroscope assembly, and flask.
Catalog No. Description Price/Each
AP7150 Flask Form Electroscope $22.35
Make a Positive Charge
Rub a solid glass friction rod with silk.
The glass rod will become positively charged.
Make a Negative Charge
Rub a hard rubber friction rod with animal fur or wool.
The rubber rod will become negatively charged.
Pith Ball Electroscope
It’s magic! Students love to see pith balls be repulsed and attracted during your electrostatic
magic show. You will remove the magic, however, as your students develop
an understanding of the electrostatic principles involved. Two pith balls included.
Catalog No. Description Price/Each
AP5639 Pith Ball Electroscope $17.90
Pith Ball Electroscope
AP5639
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