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Mechanics—Simple Machines, continued
Investigating Pulleys—
Student Laboratory Kit
By: The Flinn Staff
By placing pulleys in various combinations and arrangements, students will
soon discover for themselves how pulleys can be useful in making work easier.
The mechanical advantage of various pulley combinations will be experienced
firsthand by your students. Quantitative measurements are done with a spring
balance. Includes two single pulleys, two double pulleys, pulley cord and detailed
kit instructions.
Complete for one student group. Super Value Kit is complete for 8 student groups. All
materials are reusable. Newton scales and masses are available separately.
Catalog No. Description Price/Each
AP6355 Investigating Pulleys—Student Laboratory Kit $19.95
AP7583 Investigating Pulleys—Super Value Laboratory Kit 84.30
AP4836 Spring Scale, Pull Type, 250-g/2.5N 8.88
OB2124 500-g Hooked Weight 36.60
Pulleys, Aluminum
Durable aluminum pulleys are designed to last. Each pulley has a hook at both ends.
Catalog No. Description Price/Each
AP7806 Pulley, Aluminum, Single $4.94
AP7807 Pulley, Aluminum, Double 5.75
AP7808 Pulley, Aluminum, Triple 7.60
AP7809 Pulley, Aluminum, Quad 9.33
AP7810 Pulley, Aluminum, Double Tandem 8.31
AP7811 Pulley, Aluminum, Triple Tandem 9.80
Pulleys
High quality, smooth-running pulleys. Each plastic pulley is housed in an aluminum
casing with hooks at the top and bottom. Tandem pulleys have multiple axles.
Catalog No. Description Price/Each
AP9053 Pulley, Single $4.50
AP9054 Pulley, Double 5.17
AP9055 Pulley, Triple 6.95
AP6401 Pulley, Quad 8.60
AP9167 Pulley, Double Tandem 8.36
AP9168 Pulley, Triple Tandem 9.17
Pulleys, Economy Choice
Affordable pulleys made of rigid plastic for increased durability. 50-mm sheaves.
Catalog No. Description Price/Each
AP7803 Pulley, Single, Economy Choice $1.99
AP7804 Pulley, Double, Economy Choice 2.81
AP7805 Pulley, Triple, Economy Choice 4.00
Pulley Cord
High strength, low stretch braided pulley cord.
Catalog No. Description Price/Each
AP9330 Pulley Cord, 9 m $ 5.50
AP6036 Pulley Cord, 45 m 16.70
MECHANICS—SIMPLE MACHINES continued on next page.
PHYSICS & PHYSICAL SCIENCE MECHANICS
Investigating Pulleys—
Super Value Laboratory Kit
AP7583
Investigating Pulleys—
Student Laboratory Kit
AP6355
Analyze Pulleys
Mechanical
Advantage
Pulley Setup
Pulley, Aluminum
AP7806, etc.
1 2 2 3
W
500N W W
500N W W
500N W W
500N W W
F
F
F
500N
250N
500N
250N
500N
250N
W
F
500N
167N
W
F
F
F
500N
250N
500N
250N
500N
250N
W
F
500N
167N
W
F
F
F
500N
250N
500N
250N
500N
250N
W
F
500N
167N
W
F
F
F
500N
250N
500N
250N
500N
250N
W
F
500N
167N
The mechanical advantage of a
pulley system is determined by
measuring the force required to lift
the load compared to the mass of
the load. The more support ropes
on the pulley setup the greater the
mechanical advantage.
Pulley Cord
AP9330, etc.
Pulleys
AP9053, etc.
Pulleys,
Economy Choice
AP7803, etc.
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