What we observe influences how we communicate true or flase

Select for each of the following statements whether it is correct or incorrect. (a) in an isothermal expansion of an ideal gas. (b) the temperature remains constant. (b) the pressure remains constant. (c) there is work done by the gas. (d) there is heat added to the gas. (e) the change in internal energy equals zero.

What is the measure of how much matter is in an object and that can be measured using a balance? a. height b. volume c. weight d. mass

The ability to make things happen is also called a. heat b. force c. matter d. energy