The purpose of doing the mass/pulley experiment was to be familiar with power, velocity, acceleration, Newton’s second law, and the law of conservation of energy.

Newton’s Second Law: Acceleration of an object depends on two variables, net force and the mass of the object, the equation is

Law of conservation of energy: Energy cannot be created or destroyed

To do the experiment we must use a Lego Mindstorm motor to lift the weights and use the pulley system. First explored Newton’s Second law by having a fixed power level but will change the masses, then had a fixed mass and changed the power levels. Then recorded into excel. Next we looked at the law of conservation of energy (Potential energy = mgh). The goal the law of conservation of energy is to observe how the energy drainage effects the mass. By having a fixed power level and different masses we can observe the drainage. To observe the results we did this step a few times. Lastly we calculated the average power of the mass and pulley using the equation: Power used = Potential energy/time = mgh/time
There was a margin of error in our experiment due to technology. Some of the data also might be off due to malfunctions with the pulley.

Graphs from the data: