Unit 7- Solar System

Plan a method to compare the speed and movement of planets in the solar system.

• By observing their color.

• By using telescopes and tracking their orbits over time.

• By measuring their temperature.

• By analyzing their atmospheric composition.

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How has technology advanced our ability to explore outer space?

• Technology has made space exploration more difficult.

• Technology allows us to collect samples and data from remote locations in space.

• Technology has no impact on space exploration.

• Technology only helps in communication on Earth.

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Compare the geocentric and heliocentric models of the solar system.

• Both models place the Sun at the center of the universe.

• The geocentric model places Earth at the center, while the heliocentric model places the Sun at the center.

• Both models place Earth at the center of the universe.

• The heliocentric model places Earth at the center, while the geocentric model places the Sun at the center.

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Strategize how advancements in technology could improve future space missions.

• By reducing the need for data collection.

• By enhancing communication, data analysis, and sample collection capabilities.

• By making space missions more expensive.

• By limiting access to remote locations.

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Compare the gravitational force of the Sun to that of Earth.

• The Sun's gravitational force is weaker than Earth's.

• The Sun's gravitational force is stronger than Earth's, keeping planets in orbit.

• Both have the same gravitational force.

• Earth's gravitational force affects the Sun's orbit.

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What can be inferred about the revolution period of Mercury compared to Earth from the diagram?

• Mercury takes longer to revolve around the Sun than Earth

• Mercury and Earth have the same revolution period

• Mercury takes less time to revolve around the Sun than Earth

• The revolution period cannot be determined from the diagram

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Analyze the differences in atmospheric conditions between Earth and Mars.

• Both have the same atmospheric composition.

• Mars has a thinner atmosphere with mostly carbon dioxide, while Earth has a thicker atmosphere with nitrogen and oxygen.

• Mars has a thicker atmosphere than Earth.

• Both have atmospheres composed mainly of hydrogen.

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Explain how the Law of Universal Gravitation affects the motion of planets in the solar system.

• It causes planets to move in straight lines.

• It keeps planets in orbit around the Sun due to gravitational attraction.

• It has no effect on planetary motion.

• It causes planets to stop moving.

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Compare the uses of different parts of the electromagnetic spectrum in space exploration.

• Only visible light is used in space exploration.

• Different wavelengths are used for various purposes, such as infrared for heat detection and radio waves for communication.

• The electromagnetic spectrum is not used in space exploration.

• Only gamma rays are used in space exploration.

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Which of the following properties is unique to Earth compared to other planets in the solar system?

• Earth has a thick atmosphere composed mainly of hydrogen.

• Earth has liquid water on its surface.

• Earth is the largest planet in the solar system.

• Earth has the fastest rotation speed.

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