Heating and cooling can cause matter to change state. Which of the following occurs when heat is added to a system? A gas becomes a liquid.

A liquid becomes a solid.

A gas becomes a solid.

A liquid becomes a gas.

In a system with only a single force acting upon a body, what is the relationship between the change in kinetic energy and the work done by the force? answers: work is equal to the change in kinetic energy.work depends on the square of the change in potential energy.work is equal to the negative of the change in kinetic energy.work is equal to the square of the change in kinetic energy