Simple Machines
- In class we learned how simple machines are manipulated by force. First we made a pully machine and calculated the amount of force it took to lift the weight from 10cm. We also had to measure the string we had to pull to use the pulley system. Our goal was to lift a 200g weight with only 0.5 N of force.
- Had four tries for our experiment.
- force: 1.5N, string: .13m
- force: 1.5N, string: .29m
- force:1.3N, string: .28m
- force: .53N, string: .28m
- Our next objective was to graph our data. Since the project was to only graph one bar we had to round our data. We had two graphs; one with the pulley and one without the pulley system. Then we put the equation A=(N)(m). We also learned that half the force is double the distance.
- As you move something onto a cart you are using a simple machine. In what we learned using half the force you can double the distance. Instead of bringing the object and then lifting it in the truck we are moving on the ramp which is less the force. In doing so, the ramp also creates double the distance.
Great work! Thank you for referencing your data and including an image of your whiteboard.
ReplyDeleteJust to clarify - the force and distance are only inversely proportional in a simple machine (like levers, wedges, pulley, and inclined planes). The force involved in sliding into home base is a different concept that we will learn more about later this semester.