Final answer:
Foucault's pendulum and the motion of the sun, moon, and stars are related because they both involve the rotation of the Earth.
Step-by-step explanation:
Foucault's pendulum and the motion of the sun, moon, and stars appear to be related because they both involve the rotation of the Earth. The way Foucault's pendulum appears to move is due to the rotation of the Earth beneath it. The pendulum swings back and forth in a fixed plane, but because the Earth is rotating, the plane of oscillation appears to shift gradually over time. Similarly, the sun, moon, and stars appear to move across the sky every 24 hours because the Earth is spinning on its axis. As the Earth rotates, different parts of the sky come into view, giving the illusion of motion.