หน่วยการเรียนรู้ที่ 6 เอกภพ

Thailand uses satellite services in various aspects including communication, meteorology, and resource exploration.

The explanation for the correct answer is that ดาวพฤหัสบดี (Jupiter) is the largest planet in our solar system. It is more than twice as massive as all the other planets combined and has a diameter of about 143,000 kilometers. This makes it the largest celestial body among the given options.

ดาวยูเรนัสและดาวพลูโต (Uranus and Neptune) เป็นดาวเคราะห์ที่เราไม่สามารถมองเห็นด้วยตาเปล่าได้ เนื่องจากว่ามันอยู่ไกลจากโลกมากเกินไป และไม่มีแสงที่ส่องสว่างมากพอที่จะเห็นได้ ดังนั้นเราต้องใช้อุปกรณ์ทางดาราศาสตร์เพื่อมองเห็นดาวเคราะห์เหล่านี้

The correct answer is "โทรศัพท์" (telephone). In Thailand, the telephone is the most widely used satellite communication service for both domestic and international communication.

The correct answer is "ดาวศุกร์" because Venus, which is also known as ดาวศุกร์ in Thai, is the planet commonly referred to as the Evening Star or Morning Star. It is often visible in the sky shortly after sunset or before sunrise, making it a prominent celestial body that can be seen from Earth.

The correct answer is "ถูกทุกข้อ" which means "all of the above". This means that all of the given options - the discovery of quasars, the discovery of cosmic microwave background radiation, and the evidence of the expanding universe - are important factors that contribute to the acceptance of the Big Bang theory.

All components are equally important because each component plays a crucial role in the functioning of a spacecraft. The spacecraft needs a propulsion system (such as rocket engines) to generate thrust and move in space. It also requires a fuel tank to store the propellant needed for propulsion. Additionally, the spacecraft itself (the body or structure) is essential for housing the payload and providing protection during the mission. Therefore, all components are equally important for the successful operation of a spacecraft.

ดาวศุกร์ เรียกว่า "ดาวคู่แฝดของโลก" เพราะว่าดาวศุกร์เป็นดาวคู่แฝดของโลก ซึ่งหมายถึงว่าดาวศุกร์อยู่ใกล้ที่สุดกับโลก เรียกว่า "ดาวเพื่อนบ้าน" โดยมีระยะห่างเพียงเพียง 57.9 ล้านกิโลเมตร และมีลักษณะที่คล้ายโลกมากที่สุด ดังนั้น ดาวศุกร์ถูกเรียกว่า "ดาวคู่แฝดของโลก"

The correct answer is "ดาวพุธและดาวศุกร์" because these two planets, Mercury (ดาวพุธ) and Venus (ดาวศุกร์), are both inner planets. Inner planets are the planets that are closest to the Sun in our solar system.

The satellite "ThaiCom" helps Thailand in all of the mentioned aspects: education development, saving foreign currency, and communication and transportation development.

The question asks about the type of star "ดาวลูกไก่" (literally translated as "chicken egg star"). The correct answer is "ดาวฤกษ์" which means "Jupiter" in English. Therefore, Jupiter is the type of star referred to as "ดาวลูกไก่" in Thai.

The current spacecraft consists of three components.

สมชายเกิดในช่วงเดือนมิถุนายน ซึ่งเป็นช่วงเวลาของกลุ่มดาวคนคู่ ซึ่งหมายความว่าสมชายจะเกิดในกลุ่มดาวคนคู่

The correct answer is "ต้องการหาสิ่งมีชีวิตที่มีอยู่นอกเหนือจากโลกและสิ่งต่างๆ ที่มีอยู่ในเอกภพ" (To search for extraterrestrial life and other phenomena in the universe). This is because the purpose of sending spacecraft to explore other planets is to discover if there is any form of life beyond Earth and to study other celestial bodies and phenomena in the universe.

The correct answer is "ถูกทุกข้อ" which means "all of the above". This means that all of the statements mentioned in the options are correct explanations for the phenomenon of meteor showers.

The correct answer is 11.2 กิโลเมตรต่อวินาที. This is because the question asks for the speed that exceeds the Earth's surface, and the unit given in the answer is in kilometers per second, which is a higher value compared to the other options given in meters per second.

The question asks which option among the given ones features a parrot with a curved beak or a hooked beak. Option ก (กาแล็กซีทางช้างเผือก) refers to an elephant bird, which is an extinct species known for its large size and curved beak. Option ข (กาแล็กซีแมกเจลแลนใหญ่) refers to a macaw, which is a type of parrot with a hooked beak. Therefore, options ก and ข both correctly describe parrots with curved or hooked beaks.

ปุตนิก 1 is the correct answer because it is the first satellite that Russia (formerly known as the Soviet Union) launched into space in 1957. The other options mentioned (มอ 1, อะพอลโล 1, อินเทลแซต) are not the correct answers as they are not the first satellites launched by Russia.

The correct answer states that "สภาพไร้น้ำหนัก" means a state in which an object appears to have no gravitational force acting upon it. This suggests that the object is weightless or unaffected by the force of gravity.

The correct answer is "เพื่อการสำรวจอวกาศที่อยู่ไกลจากโลกมากๆ". This answer is the most suitable because it indicates the purpose of creating a spacecraft for exploring distant space beyond Earth. The other options, such as research station, studying weather conditions, and searching for natural resources, do not specifically address the purpose of exploring faraway space.

The correct answer states that planets have movements that are not in the same position. This refers to the fact that planets orbit around the sun, constantly moving in their orbits and not staying in a fixed position. This movement is an important characteristic of planets and distinguishes them from other celestial objects.

การใช้ดาวฤกษ์ในการพยากรณ์ดวงชะตาของคนไม่ถูกต้อง เนื่องจากดาวฤกษ์ไม่สามารถพยากรณ์ดวงชะตาของคนได้ การพยากรณ์ดวงชะตาของคนจำเป็นต้องใช้วิธีการอื่น เช่น อ่านราศีดวงชะตา หรือใช้หลักการทางจิตวิทยาในการวิเคราะห์ตัวบุคคล

The correct answer is "ดวงดาวที่อยู่เป็นกระจุกหรือกระจัดกระจายในเอกภพ". This answer correctly states that galaxies are clustered or scattered in the universe. Galaxies are not formed by the merging of planets or stars, as stated in the other options.

The correct answer is ข้อ 1, 2 และ 4. This is because statement 1 states that the solar system has the sun as its center, which is true. Statement 2 states that the solar system is part of the Milky Way galaxy, which is also true. Statement 3 states that all visible stars from Earth are satellites of the sun, which is false as there are other stars in the universe. Statement 4 states that the solar system consists of 9 planets, dwarf planets, asteroids, and moons, which is true. Therefore, statements 1, 2, and 4 are all correct.

The correct answer is because the sun has a greater gravitational force than the other planets. This gravitational force causes the planets to orbit around the sun.

The answer is "กลุ่มดาวนายพราน และกลุ่มดาวคนคู่" because these two groups of stars are the most easily visible during the winter season.

The correct answer is "ความเร็วโคจรรอบโลก" which means the speed that allows an object to move in a curved path around the Earth without causing the object to fall to the Earth's surface. This refers to the concept of orbital speed, which is the minimum speed required for an object to maintain a stable orbit around a celestial body, such as the Earth.

The interesting theory that explains the origin of the universe is the combination of the Big Bang theory and the steady-state theory. The Big Bang theory suggests that the universe began with a massive explosion, while the steady-state theory proposes that the universe is constantly expanding and new matter is continuously being created to maintain a constant density. This combination of theories provides a more comprehensive explanation for the creation and evolution of the universe.

The correct answer is "บรรยากาศของโลก" (the atmosphere of the Earth). This is because the flickering light that we see from stars is caused by the Earth's atmosphere. When starlight passes through the Earth's atmosphere, it gets refracted and scattered by the air molecules and particles in the atmosphere. This scattering of light causes the stars to appear to flicker or twinkle when observed from the Earth's surface.

The correct answer is "ความเร็วตามแนวราบและแนวดิ่ง" because the question is asking about the motion of an object in a curved path. In curved motion, the object has both horizontal and vertical velocities. The horizontal velocity determines the speed of the object in the horizontal direction, while the vertical velocity determines the speed of the object in the vertical direction. Therefore, the correct answer is the one that includes both horizontal and vertical velocities.