"Simple Machinery on Bicycles" Tools and Machinery PPT Download

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"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 pedal gear and the drive pinion.

The large gear on a bicycle has 44 teeth and the small gear has 18 teeth

The force of human pedaling is transmitted to the bicycle by the chain and gears. The chain meshes with the two gears and plays a transmission role to make the bicycle move.

The large gear of the bicycle pedal drives the smallest drive wheel gear, which rotates the fastest but uses the most force.

The large gear of the bicycle pedal drives the middle drive wheel gear, which has the slowest speed, but is more labor-saving.

The large gear of the bicycle pedal drives the largest driving wheel gear, which rotates the slowest but saves the most effort.

The function of the gear (axle) is to increase the speed

Simple machinery on bicycles PPT, part 2: expansion and extension

Among the 25 components of a bicycle, including the frame, tires, pedals, brakes, and chains, the basic components are indispensable. Among them, the frame is the skeleton of the bicycle, which bears the largest weight of people and cargo.

Bicycles can be used as an environmentally friendly means of transportation for transportation and travel; bicycles themselves are also a competitive sport, including road bicycle races, mountain bike races, track bicycle races, stunt bicycle races, etc.

Simple Machinery on Bicycle PPT, Part 3: Classroom Exercises

1. Fill in the blanks

1. The large gear drives the small gear, and the small gear rotates faster than the large gear ( ); the small gear drives the large gear, and the large gear rotates faster than the small gear ( ).

2. ( ) is the frame of the bicycle, which bears the greatest weight of people and cargo.

2. Choice

1. The handlebar of a bicycle is ( ) a simple machine.

A. Axle B. Lever

C. Incline D. Pulley

2. The bicycle is one of the most successful human-powered machines invented by mankind. It is composed of many ( ).

A.Simple machine B.Machine

C.Tool D.Device

Simple Machinery on Bicycle PPT, Part 4: Homework

Find information on how bicycles developed? And tell me what types of bicycles are there?

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

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Update Time: 2024-10-02

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

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