Warm air is less dense than cool air, so it rises upward. As it does so, the fast moving, compressed particles in the air begin to slow down and expand, causing them to cool (since fast-moving particles create heat, and slower-moving particles are colder).
Because the hills make the air rise and cool.
Warm air is used in hot air balloons because it is lighter than cool air, providing the necessary lift for the balloon to rise. As the air inside the balloon gets heated, it expands and becomes less dense than the surrounding air, causing the balloon to float.
When the air inside the balloon is heated, it becomes less dense and lighter than the surrounding cool air. This causes the balloon to rise as it floats upwards since the hotter air inside is less dense and buoyant than the cooler air outside the balloon.
Hot air is used in hot air balloons because when the air inside the balloon is heated, it becomes less dense than the surrounding cool air, causing the balloon to rise. This buoyancy principle allows the balloon to ascend and float in the sky. Using cool air would not provide the necessary lift for the balloon to fly.
Hot air is lighter than cold air, so cold air sinks and hot air rises; that makes the hot air balloon rise (if the air around the hot air balloon is heated as well, it won't rise, or sink if in the air).
cool
Cool air rises because it is denser than warm air. As cool air sinks, it displaces the warmer air, causing it to rise. This movement creates convection currents, where cooler air sinks and warmer air rises, leading to a continuous cycle of air circulation.
The cool air will sink and the warm air will rise.
The result of warm air rising and cool air sinking is convection currents of air, causing wind. Even hurricanes are caused by this phenomenon.
When it rises, it gets into an area of less pressure, therefore it will expand. Since this takes energy away from the air, it will cool.
He would heat it.
the cool air will rise
the cool air will rise
Because hot air rises and cool air sinks. the reason why is because hot air is less dense than cool air so the cooler air will sink
Hot air is lighter than cool air, so when the balloon is filled with hot air, it becomes less dense than the surrounding cool air, causing it to rise. As the hot air inside the balloon cools, the balloon will descend. By controlling the temperature of the air inside the balloon, the pilot can control the altitude.
Air is most likely to rise when it is heated. As air becomes warmer, it becomes less dense and therefore rises. This is the principle behind the formation of clouds, thunderstorms, and other weather phenomena.
The tendency for warm air to rise and cool air to sink results in convection currents. As warm air rises, it cools and then sinks back down in a continuous loop, creating circulation patterns in the atmosphere. This process helps distribute heat and moisture around the Earth.