Topmusicanswers
Natural convection is caused by density differences. Hot air rises because it is less dense than cold air, so air will rise above a heater and sink near a cold window. ... Warm air in a room quickly rises upward, and cold air sinks downward, even if the tempera- ture differences are quite small.
Does cool air rise or sink?
Hot air is less dense than cold air, which is why hot air rises and cold air sinks, according to the United States Department of Energy.
Does cold air go down?
Cold air flows downward according to hot air because it is more dense and sinks while hot air rises. In hot room the air will be much thinner thus reducing the pressure so the air flows from cold room to hot rooms. Cold air sucks out the energy of hot air! ... Air goes out and new has to replace it!
Why does the cool air sink?
Cold air is filled with dense, closely packed molecules. Since the molecules are so closely packed together, it is harder for them to move, and they absorb less energy. The atmospheric pressure pushes their molecules down to the surface of the Earth. Therefore, making the cold air sink and the hot air rise.
