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What does air do when it is heated in convection?
When air is heated in convection, it becomes less dense and rises. As it rises, it displaces cooler air, which then becomes heated and rises as well. This creates a continuous cycle of warm air rising and cool air sinking, which is known as convection.
How is air heated by conduction?
Air is heated by conduction when it comes into direct contact with a warmer surface, such as the ground or a heated object. The heat energy is transferred from the surface to the air molecules through direct contact, causing the air molecules to gain kinetic energy and move faster, increasing the air temperature.
What is heated by the thermal energy wasted by a food mixer?
kinetic energy is wasted
When the air in a balloon is heated what happens to the density?
When the air inside a balloon is heated, its density decreases. This happens because the air molecules gain energy and move farther apart, resulting in a decrease in the air's density.
Does Air expand when its is heated?
Yes, when air is heated, it expands because the particles gain energy and move farther apart, increasing its volume. This expansion causes the air to become less dense and rise.
What does air do when it is heated in convection?
When air is heated in convection, it becomes less dense and rises. As it rises, it displaces cooler air, which then becomes heated and rises as well. This creates a continuous cycle of warm air rising and cool air sinking, which is known as convection.
How is air heated by conduction?
Air is heated by conduction when it comes into direct contact with a warmer surface, such as the ground or a heated object. The heat energy is transferred from the surface to the air molecules through direct contact, causing the air molecules to gain kinetic energy and move faster, increasing the air temperature.
What happens to air heated by radiation?
When air is heated by radiation, the air molecules absorb the radiant energy and increase in kinetic energy, causing them to move more vigorously. This increased motion leads to expansion of the air, resulting in a rise in temperature.
What is heated by the thermal energy wasted by a food mixer?
kinetic energy is wasted
When heat energy travels by convection energy is transferred by the circulation of heated material?
Yes, when heat travels by convection the energy is transferred by the circulation of a heated fluid, such as air or water.
Will an air conditioner consume energy if main switch is on but air conditioner is in an off cycle?
The equipment might have circuits which remain energised when it is in an off-cycle, but the energy used would probably be less than 1% of the energy used in the on-cycle.
What is heated by the thermal energy wasted by a portable radio?
The air around the radio.
What replaces heated air at the equator?
Cool Air! As the heated air rises the heated air starts getting cool. This is because the higher the air is the colder it gets. Then the heated air will be replaced with cold air. As the cold air then comes down near the ground the cool air will become heated because of the sun. Heated Air - Cool Air - Cold Air And On And On It Goes
How does the sunlight warm the land air and water?
Land and sea are heated by absorbing radiant energy from the sun. Air is heated indirectly by being in contact (conduction) with land or water.
When the air in a balloon is heated what happens to the density?
When the air inside a balloon is heated, its density decreases. This happens because the air molecules gain energy and move farther apart, resulting in a decrease in the air's density.
Why are room heaters kept at the ground level?
To circulate the air. The heaters warm the air closest to them, which rises. This forces cold air to replace the warm air - which is then heated... and the cycle continues.
Does Air expand when its is heated?
Yes, when air is heated, it expands because the particles gain energy and move farther apart, increasing its volume. This expansion causes the air to become less dense and rise.
