Table of Contents
Why do flames bend?
Why do flames bend? The reason is the surrounding air of the flame heat up and become lighter.. this hot lighter gas moves in up side direction and produce a flow current which maintain the flame burning in upward..
What happens when you burn a candle upside down?
In the upside-down candle, more wax would be in the region of high heat, so there would be more hot surface area for vapor to escape from. This means that wax would vaporize and burn at a higher rate, which, all else being equal, should give a bigger flame.
Why do fire burn upwards against gravity?
Here is his response: Fires on earth are anchored by gravity, but the combustion gases are hot and light, so they rise. As the flame goes up, more air is sucked into the base of the fire, feeding more oxygen to the fire and making it burn more strongly.
How do you light a candle upside down?
If you don’t have a long lighter or match and your candle has burned down a little too much for you to light normally, try flipping it upside-down. Strike your lighter or match, then hold it directly under the candle wick. The flame should naturally reach up toward the wick, making it much easier to light.
Can fire burn space?
Fire is a different beast in space than it is on the ground. When flames burn on Earth, heated gases rise from the fire, drawing oxygen in and pushing combustion products out. In microgravity, hot gases don’t rise. Space flames can also burn at a lower temperature and with less oxygen than fires on Earth.
Can fire burn in zero gravity?
Why does a flame burn upwards when it is started?
The answer is buoyancy. When you start a fire, fuel combines with oxygen to release heat, light, carbon dioxide, water vapor, soot etc.
Why does a fire light always point upwards?
The flame travels does not travel upwards! Well, an open fire has combustible gases or other material like dry grass, etc. to maintain the flame. Since the hot air or flame is lighter than the surrounding cool air, the flame rises so you see the fire light travel upwards.
How does gravity affect the way fire burns?
On Earth, gravity determines how the flame burns. All the hot gases in the flame are much hotter (and less dense) than the surrounding air, so they move upward toward lower pressure. This is why fire typically spreads upward, and it’s also why flames are always “pointed” at the top.
What are the factors that affect the behaviour of a fire?
The behaviour of the fire often depends on the fuel. Other factors or variables may include where the fuel is situated and how near it is to other fuels, the weather (especially wind and relative humidity ), oxygen concentration and, in the case of outside fires, the shape of the terrain.