Question

4. The earth and the moon are attracted to each other by
gravitational force. Does the earth attract the moon with a force
that is greater or smaller or the same as the force with which
the moon attracts the earth? Why?
attracts the earth, why does the earth not move​

Answer 1

According to Newtons second law, every force has an equal and opposite reaction.

So the earth exerts the same amount of force on moon that the moon exerts on earth. The only difference is that they are in opposite directions.

For the second part of the question, you have completely misunderstood the concept of relative motion.

For us on earth, it APPEARS as though the earth is stationary when we take the position with respect to moon.

Earth , sun , moon and even our very own solar system moves due to various forces, our galaxy itself moves over a large distance as well.

So as a fact , earth is displaced about 400000km a day.

So earth may not move with respect to moon but all these gravitational forces play a role in the total movement with respect to a nebula.

Hope it helps.