Student Exploration Pulley Lab ((exclusive)) -

| Pulley System | Load (N) | Effort (N) | Actual MA | Ideal MA | Efficiency (%) | |---------------|----------|------------|-----------|----------|----------------| | Fixed | 5.0 | 5.2 | 0.96 | 1 | 96 | | Movable | 5.0 | 2.6 | 1.92 | 2 | 96 | | Compound (4 ropes) | 5.0 | 1.3 | 3.85 | 4 | 96 |

In this exploration, you discovered that pulleys trade distance for force. A movable pulley reduces effort by distributing the load across multiple rope segments. Adding more pulleys increases mechanical advantage but requires pulling more rope. Friction in the pulley bearings accounts for the small difference between actual and ideal MA.

A pulley lab is a classic physics experiment that allows students to explore how simple machines make work easier by manipulating force and distance. By using tools like the Pulley Lab Gizmo on ExploreLearning, students can virtually or physically investigate the principles of mechanical advantage and energy conservation. Objectives of the Student Exploration Pulley Lab

Overall, the "Student Exploration: Pulley Lab" receives a rating of 4.5/5, based on its effectiveness, features, and overall value.

Explore how fixed, movable, and compound pulley systems affect the force needed to lift a load.