Assemble And Test A Mechanically Neutral Lever; Assemble And Test A Mechanically Disadvantaged Lever - Clementoni Science & Play TechnoLogic Mechanics Laboratory 75025 Assembly Instructions Manual

Assemble and test a mechanically neutral lever

30
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 arms are the same.
is equal to the RESISTANCE.
• The EFFORT
TRY IT OUT!

Assemble and test a mechanically disadvantaged lever

31
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 RESISTANCE arm is longer.
• The EFFORT is greater than the
RESISTANCE.
TRY IT OUT!
18
FULCRUM
EFFORT
FULCRUM
EFFORT
X1
X1
RESISTANCE
Note: slide a collar
onto the rod at the
fulcrum to secure
the lever, as shown.
Final assembled model
RESISTANCE
Note: slide
a collar onto
the rod at the
fulcrum to
secure the
lever, as shown.
Final assembled model