"Artificial Satellites and Spaceships" PPT Courseware 2

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"Artificial Satellites and Spaceships" PPT Courseware 2

1. According to the purpose of satellites, satellites can be divided into three categories: scientific satellites, technical experimental satellites and application satellites. On October 4, 1957, the Soviet Union launched the world's first artificial satellite. On April 24, 1970, our country successfully launched the first artificial satellite, "Dongfanghong" No. 1.

2. Communication satellites are used for telephone, telegraph, television, radio, data transmission and other services; meteorological satellites are mainly used for meteorological observation; earth resource satellites are used for searching for underground mineral deposits, investigating hydrological data, etc.; navigation satellites are mainly used for transportation Navigation services; reconnaissance satellites are mainly used for reconnaissance of enemy situations, fire detection, etc.

3. What are the uses of spacecraft?

Answer: 1) Space-to-ground shuttle.

2) Observe the earth and celestial bodies in the universe.

3) Examine the impact of weightlessness on the human body.

4) Life science and biotechnology experiments.

4. The design of a manned spacecraft must meet the work and life needs of astronauts. What issues do you think should be considered during design?

Answer: 1. Temperature, humidity, and pressure should be considered to ensure the amount of oxygen required by astronauts, water consumption, and environmental controls such as air renewal, wastewater treatment and regeneration, and ventilation.

2. Life support systems, alarm communication systems, instrumentation and lighting systems, space suits and escape life-saving systems, etc.

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"Artificial Satellites and Spaceships" PPT courseware 3:

"Artificial Satellites and Spaceships" PPT Courseware 3 Teaching Objectives 1. We know that artificial earth satellites and spacecraft are important tools for exploring the universe. 2. Understand the types and uses of artificial earth satellites and spacecraft by collecting and studying information 3. By opening science...

"Artificial Satellites and Spaceships" PPT courseware:

"Artificial Satellites and Spaceships" PPT Courseware Satellites Satellites refer to natural or man-made celestial bodies that orbit a planet. How many natural satellites does the earth have? Artificial Satellite In addition to the Earth's naturally existing satellite, the Moon, humans have...

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Update Time: 2024-11-20

This template belongs to science courseware E-education edition sixth grade science volume 2 industry PPT template

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