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Heated matter tends to rise because it is less dense than cooler matter. This is due to the fact that warmer air molecules have more energy, and thus tend to move around and spread out. Cooler air does not move around so much, having less energy, and therefore will be more closely packed, or more dense. Because of this higher density, it will sink through the more loosely-spaced warm air particles and displace them. This results in warm air rising above cooler air.
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Why does water heat up quickly if the heat is applied from the bottom?
Water heats up quickly when heat is applied from the bottom because hot air rises and creates circulation within the water, leading to more even distribution of heat. This process, known as convection, helps the water to heat up efficiently and quickly from the bottom up.
Why does wrapping up hot things keep them warm?
Hot and cold are caused by the same thing-heat. Cold objects contain less heat than hot ones. An object can become more or less hot through heat exchange. An object can retain heat as insulation creates heat storage.http://portlandovations.org/files/pca_offstage/study_guides/beakman_live.pdf
What is the energy transformation for a hot plate?
The energy transformation for a hot plate involves electrical energy being converted into heat energy. The electric current flows through the resistive coils of the hot plate, causing them to heat up and transfer that heat to the cooking vessel or food placed on the hot plate.
How is heat transferred in a hot water bottle?
Heat is transferred in a hot water bottle through conduction. When the bottle is filled with hot water, heat is transferred from the water to the bottle's material which then warms up the surrounding area it comes into contact with when placed against the body.
Why do cars get so hot?
Cars get hot because the engine burns fuel to create power, which produces heat. This heat is then trapped inside the car's metal body, causing it to get hot. Additionally, sunlight can also heat up the car's interior through the windows.
What if the heat source in a hot air balloon goes out?
what goes up, goes down!
How does heat move from inside earth to earths surface?
well hot goes up and cold goes down
What causes hot air to rise?
Hot air is lighter than cold air, so it rises up. Ex. A hot air balloon rises up because we heat the air and it goes up.
Why temperature goes up oil pressure goes down?
Heat reduces the viscosity. 5w-20 is 5 when cold-20 when hot. Lower no. is thicker.
Does heat flow up or down?
Up. Heat goes up.
What goes hot to cold cold to hot?
fire to ice ice to fire
What goes cold and then goes hot?
hot on the 19th od April
Why does water heat up quickly if the heat is applied from the bottom?
Water heats up quickly when heat is applied from the bottom because hot air rises and creates circulation within the water, leading to more even distribution of heat. This process, known as convection, helps the water to heat up efficiently and quickly from the bottom up.
How does a coal fire help to ventilate a room as well as heat it?
Some of the heat from the fire goes up the flue as hot air. This creates a draught, pulling fresh air into the room.
Will cool air goes up?
hot air goes up, cold air goes down.
Which way does heat flow?
Heat flows from hot to cold. This is because molecules spread around and it goes from hot to cold until thermal equilibrium is reached.
Heat engery coming from inside the earth?
no. the sun creates heat and it goes on\in. when it goes in. lava goes in earth. that's why in the beach when you dig there's hot water.when it goes out in creates people to loose energy
