Yes, Force is literally kinetic energy. It is generally your grandest element, and is quite versatile. It is generally a bit less efficient than your other elements, but remember that mana cost is affected by skill. In addition, creating what is essentially a vortex is pretty advanced. As for forcefields, they can stop kinetic energy, which means they can stop mundane movement. Because attacks like a water projectile are divine in nature, they are powered by elemental energy other than normal kinetic energy, and thus are not affected. Sustained forcefields require a small ongoing mana cost to maintain, but minimal creation costs. Force is generally one of the better elements for booning, because one boon gives full telekinetic powers. Its opposite is Time.
Darkness is a less versatile element, but it is generally pretty efficient. It is good for creations and stealth, as well as being good for curses. It is the energy of the naturally occurring state of things in the absence of Light, but is also the element of secrets and concealment. It is not particularly useful on its own, but using it in conjunction with other elements allows one to create things such as invisible forcefields, mind-affecting spells, and illusions. It is one of the harder elements to utilize well. Its opposite is Light.
Life is a very versatile element which encompasses healing, growth, and the creation of living creatures. It is best used in conjunction with other elements to create powerful creatures, as it makes minion creation much easier. It is generally very inefficient, though. It is the energy of lifeforce. Its opposite is Death.