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MECHANICS—ROTATIONAL continued on next page.
Mechanics—Rotational
The Flying Pig
A flying pig is tethered to the ceiling with a string and
propelled in a circle by flapping wings—what is the
angle the string makes? What would the force diagram
look like? How can the flying pig be explained by
Newton’s laws? Two AA batteries are required and available
separately.
Catalog No. Description Price/Each
AP7842 The Flying Pig $13.22
AP1423 Battery, AA 2.58
Bracken’s
Demonstration Spinner
By: Jeff Bracken, Westerville North H.S., Westerville, OH
Perform a wide array of physical science and chemistry demonstrations such as the
Standing Wave Generator, Newton’s Color Wheels, Butterfly Orbital, and Cen trif u gal
Hoop using the Bracken’s Demonstration Spinner’s powerful motor. Best of all, you
only have to purchase one demonstration spinner to per form all of these exciting
demonstrations! Operates on one D battery (included).
See free video at flinnsci.com.
Catalog No. Description Price/Each
AP6202 Bracken’s Demonstration Spinner $30.73
AP6161 Standing Wave Generator 32.09
FULL KIT DESCRIPTIONS,
FREE RESOURCES AND
MORE AT FLINNSCI.COM
Catalog No. Description Type Price/Each
AP9164
Centripetal Force
Student Laboratory Kit—Individual Kit $10.48
AP7272 Student Laboratory Kit—Classroom Kit 76.16
AP7362 Curve Ahead, Reduce Speed! Centripetal Force Demonstration Kit 42.33
AP7031 Greek Waiter’s Tray Super Value Laboratory Kit 35.74
AP6382 Circular Motion Paradox Demonstration Kit 66.00
AP6693 Galileo’s Paradox—Hinged Stick vs. Falling Ball Demonstration Kit 57.73
AP4634 Ring and Discs Demonstration Kit 21.45
AP6840 Figure Skating Dumbbells Demonstration Kit 35.69
AP9677 Fidget Spinner Flinn STEM Design Challenge™ 53.10
Torque About It
Students discover firsthand how the balance point of a system is affected by mass
distribution. First, they measure the mass of a randomly selected plastic tube, steel
rod and wood dowel. Next, they combine the pieces in a specific configuration and
calculate the center of mass for the system. Finally, they confirm the system’s center
of mass by testing the balance point position of the system. Students will find the
balance point and the center of mass to be the same. Since the plastic tubes and
steel rods have various lengths, each student group will have one of 25 different
combinations. Comes complete with instructions and enough materials for five
groups of students.
Catalog No. Description Price/Each
AP4603 Torque About It $110.24
Celt
Tap the Celt on either end and watch it spin. Spin the
Celt clockwise and it will stop and spin in the other
direction. What causes the Celt to spin this way?
Catalog No. Description Price/Each
AP1972 Celt $5.56
Centrifugal Circle
Help students understand centripetal force
while they dispel popular misconceptions
about centrifugal force. A vivid demonstration of
Newton’s first law of motion—the law of inertia.
Students watch a ball roll along a circular course.
They then predict what will happen when the
ball exits the wooden circular pattern. Will it
continue on its circular path, does it curve away from the circle, or does it follow a
straight line? Students may be surprised with the result! A great apparatus to use in
conjunction with the Centripetal Force Apparatus, AP9164. Includes large wood ball
and complete instructions.
Catalog No. Description Price/Each
AP6471 Centrifugal Circle $77.78
Torque Feeler
Successfully teach the concept of
the “rotating force,” or torque, with
this unique device. First, place the
hanging mass close to the gripping
handle. Students will find it easy to
hold the rod horizontal. Then, slide the same mass to the end of the rod—not even
your strongest student will be able to grip tightly enough to prevent the handle from
twisting in their hands! Effectively demonstrates how lever-arm distance influences
the strength of a torque. Comes complete with instructions and 1-kg hooked mass.
Catalog No. Description Price/Each
AP4621 Torque Feeler $74.98
Centripetal Force—
Individual Kit
AP9164
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