According to the principles of FITT, what is the relation between the intensity of an exercise and the time an exercise needs to be performed? PLEASE HELP ME

 Intensity has to do with how hard the particular exercise is, while time has to do with the duration of time the exercise is performed.

If you have a low intensity activity, you will need to do it longer to be more effective. If you have a high intensity activity, you won't need to exercise for as long.

if this is true of false i think it would be true