Questions and Answers
Which best compares simple machines with compound machines?
What is the mechanical advantage of a wedge that is 2 inches at its widest part and has a sloped side with a length of 10 inches?
5
Which simple machine is shown in the diagram?
a wheel and axle
Which is a compound machine?
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Julian stands on his toes to lift his body high enough so that he can reach a book. In this example, Julian's toes are a ______.
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Which best compares scissors and a seesaw?
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Teeth are an example of which type of simple machine?
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A bicycle consists of which types of simple machines? Check all that apply.
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The mechanical advantage of the lever is ______.
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A lever has a total length of 12 meters with a fulcrum at the exact center of the lever. Which best describes how to double the mechanical advantage of the lever?
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Study Notes
Simple Machines Overview
- Simple machines make work easier; compound machines combine two or more simple machines for enhanced capability.
Mechanical Advantage of Wedge
- For a wedge that is 2 inches wide and 10 inches long, the mechanical advantage is calculated as 5.
Identification of Simple Machines
- A wheel and axle is identified as a distinct type of simple machine.
Examples of Compound Machines
- A pair of scissors is categorized as a compound machine due to its combination of simple machines.
Fulcrum in Action
- In the scenario of Julian standing on his toes to reach a book, his toes function as the fulcrum.
Comparison of Machines
- Both scissors and seesaws utilize levers, highlighting their mechanical similarity.
Types of Simple Machines
- Teeth are classified as wedges, serving a specific function in cutting.
Simple Machines in Bicycles
- Bicycles incorporate various simple machines, notably levers and wheel and axle mechanisms.
Mechanical Advantage of a Lever
- A lever illustrated in a diagram has a mechanical advantage of 2, indicating efficiency in force application.
Doubling Mechanical Advantage
- To double the mechanical advantage of a 12-meter lever with a centrally located fulcrum, move the fulcrum 2 meters away from the force application side.
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Description
Test your knowledge on simple machines and how they differ from compound machines. This quiz covers definitions, calculations, and identification of various simple machines. Perfect for students looking to strengthen their understanding of basic mechanical concepts.
