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Prepared by: learnloophq@gmail.com

Last edited 26 days ago by Learn LoopHQ.

Chapter: 05. Simple Machine

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How is a single fixed pulley and a wheel and axle arrangement related to levers according to “Science Alive”?

What is the Law of Levers used to describe?

How far does a screw move in one rotation?

Why is the efficiency of a practical machine always less than 100%?

What is the key difference between the myth and fact regarding the invention of simple machines?

What is the working principle of a wedge?

What is a compound machine?

Which type of lever is always considered a force multiplier?

Describe the Johnstown Inclined Plane.

What is the primary function of simple machines?

What is the main characteristic of a third-order lever’s mechanical advantage?

Give one advantage of using machines related to safety.

How is the mechanical advantage of a compound machine calculated in relation to its simple machine components?

How can the mechanical advantage of a lever be calculated using the effort arm and load arm?

What are the two main factors that determine a machine’s ability to do work?

Name two practical applications of an inclined plane.

What is the origin of the word ‘machine’ and when did it gain its modern usage?

Define the term ‘load’ in the context of simple machines.

What is a block and tackle system?

Why does mechanical advantage have no unit?

How is the mechanical advantage of an inclined plane determined?

Provide an example of a first-order lever.

Why is the “Eco-Folder” activity aligned with UN Sustainable Development Goal 12?

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