LINKTV Democracy Now October 9, 2013
In the hot cup of coffee, theres more activity. The molecules are jiggling faster. They have more energy of motion. We got a name for energy of motion. What do we call it . Kinetic energy. Kinetic energy. Theres more Kinetic Energy in the molecules in a hot cup of coffee than a you know that. Thats what it means to say that somethings hot, that it has more energy. We might say more thermal energy. More strictly speaking, well say more internal energy, more energy internal to the system. So theres much more internal energy in a hot cup of coffee than a cold cup of coffee. Whats got more interna...