Question

mr. wynn cut out the letter “m” to represent a moon, the letter “p” to represent a planet, the letter “s” to represent the sun, and the letters “mw” to represent the milky way galaxy. then, he positioned them to demonstrate how a moon orbits a planet, a planet orbits the sun, and the sun orbits the milky way galaxy, as shown below. which of the following is shown in mr. wynn’s model? ○ gravity will eventually cause the moon to move closer to the sun. ○ the sun is at the center of both the solar system and the milky way galaxy. ○ gravity is involved in the orbits of all of these space objects. ○ all the objects in the solar system are part of the milky way galaxy.

Explanation:

1. Analyze the first option: A moon orbits a planet due to the planet's gravity, not the sun's gravity directly pulling the moon closer. So this is incorrect.
2. Analyze the second option: The sun is at the center of the solar system but not at the center of the Milky Way galaxy (the Milky Way has a galactic center with a supermassive black hole). So this is incorrect.
3. Analyze the third option: The model shows gravity (arrows labeled "gravity") between MW - S, S - P (implied as planet orbits sun due to gravity), and P - M (moon orbits planet due to gravity). So gravity is involved in all these orbits. This is correct.
4. Analyze the fourth option: The model shows the sun orbiting the Milky Way, but it doesn't explicitly show that all solar system objects are part of the Milky Way (though in reality they are, the model's focus is on orbits due to gravity, not the membership of solar system in Milky Way). So this is not what the model primarily shows.

Answer:

Gravity is involved in the orbits of all of these space objects.