Directions: Use the information provided and your knowledge of Earth and Space Sciences to answer the following questions. Show all work where necessary.
Directions: Use the information provided and your knowledge of Earth and Space Sciences to answer the following questions. Show all work where necessary.
Students in a physics class learn about the solar system. They learn that the earliest models of the solar system were geocentric. Geocentric is defined as “having the Earth at the center.” It was believed for many centuries that the Earth has a special position in the solar system. Later models, including the one used today, are heliocentric. Heliocentric is defined as “having the sun as the center”. Today’s heliocentric model was not generally accepted until only about 500 years ago.
The students want to investigate more about why the sun and not Earth is at the center of the universe. The students collect data about objects in our solar system. They collect the data in Table 1 which shows the mass, diameter, and gravity of the sun, planets, Pluto, and Earth’s moon.
Table 1. Mass, Diameter, and Gravity of Objects in the Solar System
Explain why the Sun, rather than Earth, is at the center of the solar system according to the heliocentric model.
Based on Table 1, which planet’s surface gravity is most similar to Earth’s?
Compare the mass and gravitational acceleration of Jupiter and Earth. How does this explain Jupiter’s stronger gravitational pull?
Using Table 1, describe the pattern you observe between planetary mass and gravitational acceleration. Identify one exception to this pattern and explain why it occurs.
If a ball is dropped on Earth and on Mercury from the same height, what will happen?
Explain how mass and distance together determine the strength of gravitational attraction between two objects, such as Earth and the Sun.
Use Table 1 to answer: Is the Sun’s gravitational pull stronger than Earth’s, and why does that matter for the structure of the solar system?
Explain how understanding the relationship between mass, diameter, and gravity helps scientists interpret data from other celestial bodies.