Pulleys : Différence entre versions
Sauter à la navigation
Sauter à la recherche
| (3 révisions intermédiaires par le même utilisateur non affichées) | |||
| Ligne 4 : | Ligne 4 : | ||
==Description== | ==Description== | ||
| − | A series of pulleys demonstrate the ability to use an equal amount of force to lift several different masses or that the amount of force needed to lift a | + | A series of pulleys demonstrate the ability to use an equal amount of force to lift several different masses or that the amount of force needed to lift a mass is reduced as more pulleys are used. |
==Equipment== | ==Equipment== | ||
| Ligne 14 : | Ligne 14 : | ||
==Instructions== | ==Instructions== | ||
Arrange the pulleys according to the diagrams. The first setup shows that through the use of pulleys, the same amount of force can lift a different amount of mass. The second setup shows that the amount of force needed to lift a mass is reduced as more pulleys are used. | Arrange the pulleys according to the diagrams. The first setup shows that through the use of pulleys, the same amount of force can lift a different amount of mass. The second setup shows that the amount of force needed to lift a mass is reduced as more pulleys are used. | ||
| + | |||
| + | NOTE: First setup missing picture. | ||
==Keywords== | ==Keywords== | ||
Version actuelle datée du 22 juillet 2015 à 15:28
Back to 1M - Work and Energy
PIRA index: 1M20.10
Description
A series of pulleys demonstrate the ability to use an equal amount of force to lift several different masses or that the amount of force needed to lift a mass is reduced as more pulleys are used.
Equipment
- system of pulleys
- masses
- force scales
- diagrams of pulley arrangements
Instructions
Arrange the pulleys according to the diagrams. The first setup shows that through the use of pulleys, the same amount of force can lift a different amount of mass. The second setup shows that the amount of force needed to lift a mass is reduced as more pulleys are used.
NOTE: First setup missing picture.
Keywords
pulley, mass, force, lift
Images & Movies
Figure1
Figure2
