Electro-weak force is the combining of the two forces, electromagnetic force and weak force.
The unification of all the four fundamental forces is the chief aim of modern physics today. We have already got success in unifying the weak, strong and electromagnetic forces, only gravity staying apart from the other three.
At first, all these forces look very different. All have their own strength, own feilds and even their own mathematics and physics. But according to our present theories, at high degrees of temperature and pressure, they start to seem similar and unify as one.
