Water has small charges on its surface that are useful when water dissolves substances, like salt or sugar. These changes, however. are also useful in heating water in a microwave oven.
Sourced from https://www.youtube.com/watch?v=lVu11WWrNbQ at 10.21 am 4/08/20
Constant flipping of the water particles within the frequently changing electric field of the microwave imparts heat energy to these particles and causes the food to warm up. It is actually this particle motion that we call temperature. At higher temperatures most particles of a substance move faster, in other words, they have greater energy. The video mentions electrons, we will learn about these particles at a later time.
1) What non-contact forces are acting to produce energy in the form of microwaves?
2) Explain how microwaves heat up our food.
3) Are microwave ovens useful in heating dehydrated food?
4) What is it about the particles of water that make them useful in a microwave oven?
