Assembling The Weight; Assemble And Test A Mechanically Advantaged Lever - Clementoni Science & Play TechnoLogic Mechanics Laboratory 75025 Assembly Instructions Manual

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Assemble and test a mechanically advantaged lever

29
Find the equilibrium of this type of mechanical
device: position the weight (RESISTANCE) on one
side of the lever and gently press down with your
hand (EFFORT) on the other side.
Note the position of the fulcrum!
• The EFFORT arm is longer.
is less than the RESISTANCE.
• The EFFORT
TRY IT OUT!
1:1
X1
3
ASSEMBLING THE
WEIGHT
Assembled weight
In Activities 29-30-31 try moving the fulcrum and then applying down-
ward pressure to the EFFORT arm with your hand to see the differences
between the levers.
3
X2
3
X2 X4
X1 X1
X2 X2
X1 X1
FULCRUM
EFFORT
X2 X2
3 3
X2 X2
X2 X2 X2 X2
3
X1
RESISTANCE
Note: slide
a collar onto
the rod at the
fulcrum to
secure the
lever, as shown.
Final assembled model
17