"Simple Machinery on Bicycles" Tools and Machinery PPT Teaching Courseware

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"Simple Machinery on Bicycles" Tools and Machinery PPT Teaching Courseware

Part 1: Importing new lessons

Our country is a big bicycle country, and bicycles are an important means of transportation. So what kind of working principle do bicycles use to advance? After studying this lesson, if you come back and think about this problem, many problems will be easily solved.

PPT on simple machines on bicycles, part 2: new lesson learning

Bicycles are a simple, convenient and environmentally friendly means of transportation, and many people like to use them.

There are many types of bicycles in different shapes

Activity 1: Find simple machines on bicycles

Write down our findings:

Pedal plate, large gear, chain, small gear, rear wheel

Observe, if you turn the large gear of the bicycle once, how many turns will the small gear of the rear wheel rotate? How many turns of the small gear does it take for the large gear to turn once?

Guidance system: It consists of handlebars, front forks, front axles, front wheels and other components.

The rider can change the direction of travel and maintain balance by manipulating the handlebars.

Drive system: It consists of pedals, bottom bracket, crankset, crank, chain, flywheel, rear axle, rear wheel and other components.

1. How does a bicycle transmit the force of our pedals to the wheels?

2. What is the relationship between the speed of gear rotation and the size of the gear?

Braking system: consists of brake components. Riders can operate the brakes at any time to slow down or stop the moving bicycle and ensure driving safety.

Can you talk about the working process of related brake components when braking?

Simple machinery on bicycles PPT, part three: conclusion summary

There are many mechanical principles applied to bicycles. The large gear of the bicycle drives the small gear, which rotates faster, and the small gear drives the large gear, which rotates slower.

Simple Machinery on Bicycle PPT, Part 4: Classroom Exercises

(1) Fill in the blanks

1. The bicycle brake lever uses the principle of ( )

2. When the large gear drives the small gear to rotate, the small gear rotates faster than the large gear ( ).

3. When the large gear drives the small gear, the rotation speed changes ( ); when the small gear drives the large gear, the rotation speed changes ( ).

(2) Judgment questions

1. The rotation of the large sprocket on the central axle of the bicycle transmits power to the small sprocket on the rear axle through the chain. ( )

2. Bicycles use simple mechanical principles such as wheel axles, inclines, and levers, and are a widely used means of transportation. ( )

Simple Machinery on Bicycle PPT, Part 5: Work Arrangement

Can you talk about the working process of related brake components when braking?

Keywords: Free download of Chinese PPT courseware for the first volume of the sixth grade in the textbook edition, PPT download of simple machinery on bicycles, PPT download of tools and machinery, .PPT format;

For more information about the PPT courseware "Tools and Machines on the Simple Machines on the Bicycle", please click on the Tools and Machines PPT on the Simple Machines on the Bicycle PPT tag.

"Simple Machinery on Bicycles" Tools and Machinery PPT Download:

"Simple Machinery on Bicycles" Tools and Machinery PPT Download Part One Content: Learning and Exploration (1) Chains and Gears on Bicycles The two gears refer to the large pedal gear and the driving pinion. The large gear on a bicycle has 44 teeth. The pinion has 18 teeth...

"Simple Machinery on Bicycles" Tools and Machinery PPT:

"Simple Machinery on Bicycles" Tools and Machinery PPT Part One Content: Chains and Gears on Bicycles Bicycles rely on human power to move forward. How is the force of human pedaling transmitted to the wheels? The chain meshes with the two gears to transmit power and make the...

"Simple Machinery on Bicycles" Tools and Machinery PPT Courseware 4:

"Simple Machinery on Bicycles" Tools and Machinery PPT Courseware 4 What are the characteristics of the inclined plane? Slopes can save effort. The smaller the slope, the less effort. The larger the slope, the more effort. Bicycles are a simple, convenient and environmentally friendly means of transportation, and many people like to use them. The bicycle is...

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Update Time: 2024-11-16

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

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