Pulley Lab

For our pulley assignment, we created 3 different pulleys. My group created a simple pulley, a two-string pulley, and a four-string pulley. For each pulley, we measured a 200g weight and measured the force required to hold the mass steady. It took 20 cm of string to raise the weight 10 cm, which shows the increased distance and decrease of force being used.

In the picture, it shows the force required to hold the 200 g mass steady, and the string required to move the 200 g.

                                                                                  

The area all equaled .01 m/n which showed their inverse relationship. Force x Distance together are constant. Also, F x D = Work, and newtons x mass = joules. 

Simple machines have an impact on our lives because it makes it easier for us. Objects such as the pulley and hammer makes work require less energy because of the less distance required to complete the job.