Complex (or compound) machines combine one or more simple machines together. The result combines properties and functions of the component simple machines and usually provides additional functionality to what the component simple machines can provide.
You are watching: What kind of machine is made of two or more simple machines?
Compound Machine : Two or more simple machines working together to make work easier.Stapler – lever, wedgeCan opener – lever, gears, wheel and axle, wedgeWheelbarrow – wheel and axle, lever, inclined planeHand drill – wheel and axle, gear, screw, leverBicycle
Sample examples of complex machinesRube Goldberg was famous for combining dozens of simple machines into very complex machines that preformed some very simple tasks. Today, any machine that is more complicated than necessary is often described as a “Rube Goldberg Machine” after this designer and engineer.
Combining simple machines
Complex machines have advantages over simple machines. They often are provide a better solution than just a simple machine alone. These questions step through the Engineering Design Process.
See more: Does Anyone Know How To Wash Fiberglass Out Of Clothes, Fiberglass In Clothes: Construction
Some times less is better. Some machines are improved by making something less complex. Modern material are stronger, lighter and easier to make into complex shapes. What are some examples of simple machines that are replacing older more complex machines?
That’s engineeringdynamicsmechanical advantage
Engineering ideasLevers , Pulleys , Wheel , Ramps, Inclined Planes , Wedge , Screws, friction, efficiency, compound machines
Do itHere are some challenges for you to work on…design a complex machine to do a task for your home that includes at least 3 simple machines. Check out Rube Goldberg site for more info.show each simple machine being used and how it makes the work easierdesign a home or office building that provides handicap access using at least 2 simple machines, why, and how the make life easier.evaluate 3 inventions in history that used simple machines. Find information on the inventoruse paper, popsicle sticks, glue and marbles to create a miniature roller coaster using math and science, how a roller coaster works.
Design and conduct an experiment to test these questionsIs a weight easier to move when the force arm is longer, shorter, or the same length as the weight arm?What type of screw or nail holds better?What angled ramp will make it easier to pull the book?What type of lever works best to lift an object?
Learn more…3-D%20printing 3-D printing> – prototypes, custom limited-quantity manufacturing, impossible machines – naturally occurring engineering solutions