That would be melting. From a liquid to a gas is evaporation, and from a solid directly to a gas is sublimation. From a gas to a liquid is condensation, and from a liquid to a solid is freezing.
Answer:
They will push apart because they have the same charges
Answer:
• Bring another magnet wound with a copper wire, at the top of the fixed magnet. Here EMF will be generated by mutual induction
Explanation:

In Newton's Third law of motion, the 'action' and 'reaction' forces act on different objects. That's why they don't cancel each other out and always result in zero force.