"Design and Make Little Racing Cars" Sports and Power PPT Download

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"Design and Make Little Racing Cars" Sports and Power PPT Download

Part 1: Importing new lessons

Get to know new vehicles

A solar car is a car that uses solar panels to obtain electrical energy and is propelled by an electric motor.

The lunar rover is a rover designed to meet the needs of human exploration of the moon and adapt to the special conditions on the moon.

Design and make racing cars

Go-kart is a new type of relatively safe small racing car, designed to satisfy more people's desire to participate in racing.

Design and make small racing car PPT, part 2: cooperative exploration

1. How engineers design racing cars

Design requirements

The real racing speed must reach more than 300 kilometers per hour, and at the same time, it must be as stable and safe as possible.

Considerations

The power should be large, the air resistance should be small, and the tires should not slip or roll over.

Design a powerful engine

Tires are designed to increase friction and avoid slipping

Design a streamlined body to minimize drag.

The body is very low and the distance between the wheels is wide, which can make the driving stable.

2. Design our little racing car

Design name Design racing car

Design tasks

1. The body cannot exceed 25 centimeters; 2. Use rubber bands or balloons as power; 3. The driving distance should be as long as possible.

Considerations

How to increase the power of the car and extend the time the power acts on the car? How to overcome wheel slipping problem? How to reduce the weight of the car? Where on the car is friction harmful? How to reduce it?

Address factors to consider

1. To lengthen the body as much as possible within the specified dimensions, the length of the rubber band must be increased, thereby increasing the power.

2. The wheels are a little rougher and the car is a little heavier.

3. Choose lighter materials for the frame.

4. The friction of the rotating shaft is harmful, so lubricating oil can be added.

Design and make small racing car PPT, the third part: expansion and extension

Motorsports has a history of more than 100 years. The earliest racing competitions were held on highways between cities. Many drivers lost their lives due to the extreme dangers of road racing, so professional racing circuits came into being. The first racing race was held in Paris on April 20, 1887.

The world's racing community recognizes that Monaco's street circuit, the Le Mans circuit consisting of rural roads, the high-speed Indianapolis oval circuit and the most representative Nürburgring circuit are the four most famous circuits in the world.

Designing and making a small racing car PPT, part 4: evaluation of this lesson

1. Fill in the blanks

1. The real racing speed must be above ( ), and at the same time, try to achieve ( ).

2. ( ) is a new type of relatively safe small racing car.

3. The two important points in designing a small racing car are ( ), ( ).

2. Choice

1. ( ) Use foam plastic to make the car panel to minimize the weight of the car.

A.Chopstick trolley B.Pole type trolley

C. Jet car D. Propeller car

2. The force between the tire and the ground is ( ).

A.Gravity B.Recoil

C. Elasticity D. Friction

Design and make a racing car PPT, Part 5: Homework

After class, as a group, hold a racing meeting!

Keywords: Free download of Chinese PPT courseware for the fifth grade in the textbook version, PPT download of designing and making a small racing car, PPT download of sports and force, .PPT format;

For more information about the "Sports and Forces Design and Production of a Small Racing Car" PPT courseware, please click the "Sports and Forces ppt Design and Production of a Small Racing Car ppt" tag.

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Update Time: 2024-11-25

This template belongs to science courseware Fifth Grade Science Volume 1, Textbook Edition industry PPT template

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