Wearing clothes that trap air next to your body on a cold day helps you retain what type of energy?
alumal energy
adjacent energy
caloric energy
thermal energy
One way to retain your own thermal energy on a cold day is to wear clothes that trap air. That’s because air, like other gases, is a poor conductor of thermal energy. The particles of gases are relatively far apart, so they don’t bump into each other or into other things as often as the more closely spaced particles of liquids or solids. Therefore, particles of gases have fewer opportunities to transfer thermal energy. Materials that are poor thermal conductors are called thermal insulators . Down-filled snowsuits, like those in the Figure below , are good thermal insulators because their feather filling traps a lot of air.