What type of simple machine is a toaster oven?

A toaster oven, by itself, is not a simple machine. It's a complex system that incorporates several simple machines working together.

Here's how:

* Heating Element: This is a form of electrical energy transfer which converts electrical energy into heat energy.

* Heating Coils: These are often made of nichrome wire and act as resistors, converting electrical energy into heat.

* Thermostat: This acts as a lever to control the flow of electricity to the heating element, keeping the temperature consistent.

* Fan (Some models): The fan uses a wheel and axle system to circulate hot air inside the oven for even heating.

* Oven Door: This acts as a lever to open and close the oven.

Therefore, a toaster oven is not a single simple machine but a combination of several simple machines working together to perform a complex function.