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Mechanics—Rotational
Centripetal Force—
Student Laboratory Kit
By: The Flinn Staff
Demonstrate the relationship between angular velocity and centripetal acceleration.
The low cost and simple construction of the centripetal force apparatus make it a
must for every classroom. The experiment uses the weight of 20 washers hanging
from one end of a nylon thread to balance the pull of a rubber stopper swinging
overhead. Complete instructions provided.
Complete for one student group. Classroom Set is complete for 8 student groups.
Catalog No. Description Price/Each
AP9164 Centripetal Force—Individual Kit $ 9.75
AP7272 Centripetal Force—Classroom Set 70.85
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 $12.30
AP1423 Battery, AA 2.40
Curve Ahead, Reduce
Speed! Centripetal Force
Demonstration Kit
By: The Flinn Staff
Rounding a curve too fast on a bike or in a car can be dangerous! Determine the
maximum speed an object can safely travel along a curved path under various
conditions by analyzing the effects of the radius of a curve, banking the curve and
friction on the rotational motion of a plastic “car” on a turntable. Simple and practical
demonstration will develop students’ understanding of centripetal force, speed and
acceleration. Materials are completely reusable!
Catalog No. Description Price/Each
AP7362 Curve Ahead, Reduce Speed!
Centripetal Force Demonstration Kit
$40.70
MECHANICS—ROTATIONAL continued on next page.
Centripetal Force—
Individual Kit
AP9164
Centripetal Force—
Classrom Set
AP7272
The Flying Pig
AP7842
Curve Ahead, Reduce Speed!
Centripetal Force Demonstration Kit
AP7362
Greek Waiter’s Tray—
Super Value Laboratory Kit
By: The Flinn Staff
Students build “Greek waiter’s” trays to examine the important concepts of centripetal
force, friction and Newton’s laws of motion. When they place a cup of water
in the center of their tray, the student can walk effortlessly around the classroom
without spilling a drop—even as they spin the tray in a circle over their heads!
Observe the simulated gravitational effects of centripetal motion as the cup and
water remain “normal” to the tray, even when the cup and water are upside-down.
Excellent for illustrating how gravity may be simulated in outer space during future
space missions.
Super Value Kit is complete for 10 student groups. All materials are reusable.
Catalog No. Description Price/Each
AP7031 Greek Waiter’s Tray—Super Value Laboratory Kit $33.25
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 Centrifugal
Hoop using the Bracken’s Demonstration Spinner’s powerful motor. Best of all, you
only have to purchase one demonstration spinner to perform
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 $29.55
AP6161 Standing Wave Generator 29.85
Bracken’s
Demonstration
Spinner
AP6202
Greek Waiter’s Tray—
Super Value Laboratory Kit
AP7031
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