flinnsci.com PHYSICS & PHYSICAL SCIENCE MECHANICS
363
Simple Machines—
Student Laboratory Kit
AP6931, etc.
FULL KIT DESCRIPTIONS,
FREE RESOURCES AND
MORE AT FLINNSCI.COM
Catalog No. Description Type Price/Each
AP6931
Student Laboratory Kit, Full-Size Kit $179.03
AP10160 Student Laboratory Kit, Full-Size, Refill Kit 166.62
AP10238 Student Laboratory Kit, Small-Size Kit 122.72
AP10316 Student Laboratory Kit, Small-Size, Refill Kit 119.32
AP6306 Investigating Levers Student Laboratory Kit 83.69
AP6890 Human Block and Tackle Demonstration Kit 28.70
AP6355
Student Laboratory Kit 21.45
AP7583 Super Value Laboratory Kit 90.62
HAS BEEN WRITTEN AND
TESTED BY OUR FLINN STAFF
Demonstration Balance Support
You want a stable and rugged fulcrum platform when you do
your meter stick lever experiments. This is the one you want!
Its cast aluminum construction is so durable that it will not
spring out of shape during use. Its wide base (3" x 3") and
tall arch (71/2") make it perfect for teenage hands trying to
make things “balance.” The smooth notched top is matched
perfectly to accommodate a knife-edge clamp for smooth
operation. Meter stick and knife-edge clamp (AP4672) sold
separately.
Catalog No. Description Price/Each
AP4669 Demonstration Balance
$22.95
K’NEX Simple Machine Kits See page 375.
MECHANICS—SIMPLE MACHINES continued on next page.
Mechanics—Simple Machines
Simple Machines
Investigating Pulleys
PSWORKS™ Lever Arm
Students can now effortlessly experiment with first-, second-
and third-class levers and see the relationships between
distance, mass and the position of the fulcrum. The Flinn
PSWORKS™ Lever Arm quickly attaches to the PSWORKS™ Support
Stand, not included. Additional materials needed are weight
hangers, weights and string.
Catalog No. Description Price/Each
AP7001 PSWORKS™ Lever Arm $ 56.06
AP6999 PSWORKS™ Support Stand 115.00
Clamp with Hanger, Lever
Use these clamps with any meter stick and a balance
support and you are ready to study levers and torque in
a hands-on fashion. The clamp’s unique design allows
easy reading of measurements and the setscrew locks
the clamp securely on the meter stick. The removable
stirrup allows for dual purpose use—as a knife-edge
fulcrum pivot and as a mass hanger.
Note: Will not fit meter sticks with metal ends.
Catalog No. Description Price/Each
AP4672 Clamp with Hanger, Lever $8.06
Classify Levers
Support
Levers are analyzed and classified according to the position of the effort force and resistance force relative to the position of the fulcrum.
Common Examples
Force
Lever Applies
Effort Force
Force
Lever Applies
Force
Lever Applies
Effort Force Effort Force
Resistance
Force
Resistance Force Resistance Force
Fulcrum Fulcrum Fulcrum
First-Class Lever Second-Class Lever Third-Class Lever
Shovel Wheelbarrow Rake
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