Question

You use an iron to press a shirt. what energy transformation is performed by the iron

A heat energy to chemical energy

B electrical energy to heat energy

C gravitational potential energy To kinetic energy

D kinetic energy to light energy

Answer 1

I believe your answer would be B) electrical energy to heat energy

Answer 2

The energy transformation performed by the iron is B) electrical energy to heat energy.

Step-by-step explanation:

The operating principle of an iron is to convert electrical energy to heat energy, that along with pressure is useful to remove wrinkles from clothes.

It works using the Joule effect, as the electrical current flows through the internal resistence of the iron, part of the kinetic energy of the electrons transforms to heat.

The amount of electrical energy transformed is proportional to the voltage, internal resistance and current that flows through it. We can calculate the power of the iron (energy per second released as heat):

`P = V \cdot I=  \cfrac{V^2}{R}= I^2 \cdot R;\\\mbox{Where P is the power, V the voltaje of the iron, I its current and R its resistance.}`