This question is about three different methods used to cook vegetables.
On a traditional electric hob, a turnip is placed in water inside a metal saucepan on top of a solid hot plate.
Describe how thermal energy is transferred from the hot plate to heat up all of the turnip.
A microwave oven is used to cook a turnip.
Explain how energy is transferred to heat up the entire turnip, and discuss whether the common claim that microwaves 'cook food from the inside out' is correct.
In an induction cooktop, an induction coil is positioned directly below the ceramic surface of the hob.
A metal saucepan containing water and a turnip is placed on the surface. An alternating current is switched on in the coil under the pan. The coil itself does not directly heat the ceramic surface of the cooker.
Describe how energy is transferred to heat up all of the turnip.
