Compare Gravity Scales Practice Test

A class compares gravity using two scale models:

• Solar system model: A small asteroid passes near Earth and its path bends slightly. • Galaxy model: The Milky Way’s gravity keeps billions of stars, including the Sun, moving in long-term orbits around the galactic center.

How does gravity’s effect change with scale, based on these models?

A class uses a simple model with three interactions:

Local: a 10 kg backpack and a 1 kg textbook on a table.

Solar system: Earth and the Sun.

Galaxy: the Sun and the Milky Way’s center.

Which statement about gravity across scales is supported by the model?