Machines – they make work easier and there are many types of machines.
~ Ideal Machine – work input=work output and it doesn’t exist, there is always work lost do to friction.
~ Compound Machine – This machine is a combination of 2 or more simple machines.
~ Simple Machine – The work input is greater than the work output because of friction, it’s also a mechanical advantage. They do work in one simple movement. Below are types of simple machines.
* Levers, Wheel and Axle, Pulleys, Inclined Planes, Ramp, Wedge, Screw.
Rube Goldberg Machine In Class
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In last science class, we learned about Rube Goldberg machines and made one in class and tested it out. Our goal was to have a button pushed. Group by group everybody added a piece to the machine. Finally, the end of class came and we go to test the machine. My thoughts are that I think it worked, but it didn’t work. I say that because it worked and the button got pushed but the wrong ball rolled down the ramp. Overall I think it did work. Some examples of simple machines that we used in our machine is a ramp, and a lever.