Here is a true or false question pl,ease . in a closed system, the volume of a gas is not related to the volume of its enclosure.. i think it is false am i

There are four states of matter: solid, liquid, gas and plasma. Solid has a shape and volume of its own. A liquid takes the shape of the container does not occupy entirely the volume of the container.  For gas, it takes the shape of the container as well as taking the volume of the container. In this case, if the system is only composed of gas, the statement given is true.

As the boulder falls off the cliff, the gravitational potential energy that the boulder has is converted into kinetic energy. If you do the calculations, you will see that the kinetic energy the boulder has is equal to the gravitational potential energy it had before it fell off a cliff.