"Research on Leverage Tools" Tools and Machinery PPT Download

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"Research on Leverage Tools" Tools and Machinery PPT Download

Part One Content: New Lesson Learning

Find the fulcrum, force point and resistance point of the iron piece, bottle opener and clamp respectively. What is the difference between their three o'clock positions?

Which of these three lever types is labor-saving and which is labor-intensive?

Why are some levers designed to require effort?

Saving labor is just one of the functions of tools. Tools also bring convenience to us, such as extending our arms (fingers) for easy access, etc.

Research on small steelyards

As the saying goes: "Although the weighing weight is small, it can weigh a thousand catties." Why is the weight of the steelyard so small, but it can "weight" such a heavy object. (Let’s talk about the relationship between the three points of leverage)

Research PPT on leveraged instruments, part 2: conclusion summary

Some levers are labor-saving, some are labor-intensive, and some are neither labor-saving nor labor-intensive. The best way to tell whether a lever is a labor-saving tool is to find three points and compare them.

Research PPT on leverage tools, part three: classroom exercises

1. Multiple choice questions

(1) There are three important positions on the lever: the position that supports the lever and enables the lever to rotate is called ( ); the position where force is exerted on the lever is called ( ); and the position where the lever overcomes resistance is called ( ).

A. Center point B. Fulcrum C. Force point D. Resistance point

(2) The force point is far from the fulcrum, and the resistance point is close to the fulcrum. This type of lever is ( ); the force point is close to the fulcrum, and the resistance point is far from the fulcrum. This type of lever is ( ); the distance between the force point and the fulcrum is equal to the resistance point. The distance from the fulcrum of this lever is ( ).

A． A lever that is neither labor-saving nor laborious B. A lever that is sometimes labor-saving and sometimes laborious C. A labor-saving lever D. A laborious lever

2. True or false questions.

(1) When the lever is working, the force point is far away from the fulcrum and the resistance point is close to the fulcrum, which saves effort. ( )

(2) Effortless leverage must cost distance. ( )

(3) The pressure rods and seesaws of water wells are not levers. ( )

Research PPT on lever tools, part 4: homework assignments

It is said that "even though a weight is small, it can weigh a thousand pounds." Make a small steelyard and study how it weighs the object.

Keywords: Free download of Chinese PPT courseware for the first volume of the sixth grade of the textbook version, PPT download of the study of lever tools, PPT download of tools and machinery, .PPT format;

For more information about the "Research on Tools and Mechanical Lever Tools" PPT courseware, please click the "Research on Tools and Mechanical PPT Lever Tools" ppt tab.

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Update Time: 2024-09-28

This template belongs to science courseware Science Edition for Sixth Grade Science Volume 1 industry PPT template

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