A stove top gives off energy through the conduction of heat.
The heat energy from the stove, which in turn comes from the burning of the chemical energy in the gas that is burning, or from the electrical energy, depending on the type of stove.
chemical
The kettle uses heat energy. Depending on your type of stove, that heat will usually come from chemical energy (in a gas stove), or electrical energy (in an electrical stove).
A gas stove uses natural gas or propane.
Chemical because a gas stove is using propane
gas
None, Electrical energy is used to produce microwaves in a microwave oven.
Chemical Energy
An electric stove uses the Potential Energy of electricity and transforms it into Thermal Energy.
chemical energy to heat energy
Several types of energy can be used to heat water. Electric energy can heat water, like in a coffee maker. Chemical energy can be used as in a gas stove.
The type of induction stove that is typically the cheapest is one with an electric burner. They are usually cheaper than gas burners and have a lot of safety features that does not come with a gas burner.