Intensity refers to the strength, force, or amount of something. It describes how strong or powerful a certain quality, sensation, or action is. Full definition
If we limit lobbying, we'll have the increase of intensity of media manipulation. (politics.stackexchange.com)
Due to the high intensity of resistance exercise, your body can take a while to recover. (healthtrends.com)
It does note substantial uncertainties in looking ahead, particularly because the model simulations didn't achieve the observed increase in intensity of storm output. (dotearth.blogs.nytimes.com)