Why the bag above the candle is pushed up?

As the warm air rises up, it pushes the bag above the candle.

Why does the paper bag above the burning candle rise up?

When a burning candle is placed below the left side paper bag, the air above the candle flame gets heated. The hot air, being lighter, rises up and fills the left side paper bag(by displacing the heavier, cold air from it).

What will happen when a burning candle will be placed below bag?

Answer. Answer: The bag above the candle goes up, as the air above the candle becomes warm, it rises, and pushes the bag up.

Why is the balance of the bags disturbed?

Inference: The balance of the bags is disturbed because the air inside the bag gets heated up by the candle. As the air heats up, the particles in the air move further apart from each other. Therefore, hot air is light and rises upwards, causing a disturbance in the balance of the bags.

Why does hot air rises upward Class 7?

When vapour cools down, it releases the absorbed heat into the atmosphere. The heat thus released warms up the air and causes it to rise up once again. A low pressure area is thus formed and the air from the surrounding areas rushes in.

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What happens when air rises up?

Heated air expands and becomes much lighter so it goes up.

this happens because the warmer air becomes light and it is the property of the light air to go up. Whereas, the cold air goes down because it is heavy. The warm air jiggles and expands. It floats as the wood float on the water surface.

Why does hot air move upwards Class 4?

Answer: Hot air rises because when you heat air (or any other gas for that matter), it expands. When the air expands, it becomes less dense than the air around it. The less dense hot air then floats .

What is cyclone 7th?

A cyclone is a weather condition consisting of a system of high-speed winds revolving around a central area of very low pressure. Cyclones develop over tropical seas. It is a violent storm with a wind speed of 150-250 km/h. It is accompanied by strong winds and heavy rains.

What is cyclone short answer?

Definition of cyclone

(Entry 1 of 2) 1a : a storm or system of winds that rotates about a center of low atmospheric pressure, advances at a speed of 20 to 30 miles (about 30 to 50 kilometers) an hour, and often brings heavy rain. b : tornado.

Why do cyclones move towards land?

Storms generally move east to west because of trade winds in the tropics, so a greater westward shift usually puts them closer to where the land is, Wang said.

What happened to the paper bag when you place the lighted candle below it?

This Is What Happens: The candle flame heats the air inside the bag. This hot air is surrounded outside by cooler air. The cooler air is heavier than the hot air and lifts the bag of hot air upwards.

What will happen to the light candle when you cover it with a jar it will?

This happens because oxygen in the air inside the glass tumbler is utilized in burning the candle. All the oxygen gets converted into carbon dioxide. Carbon dioxide does not support burning and hence candles stop burning. Was this answer helpful?

What happens when you cover a candle?

Putting the lid on a burning candle deprives the flame of the oxygen it needs to keep going. A candle flame is essentially a continuous combustion reaction between oxygen and hydrocarbons (wax) to form water vapor, carbon dioxide, and heat.

What is heat expanding air?

So air, like most other substances, expands when heated and contracts when cooled. Because there is more space between the molecules, the air is less dense than the surrounding matter and the hot air floats upward. This is the concept used in the hot air balloons.

Why does smoke always rise up Class 7?

Answer: As we know that smoke is the combination of hot air and hot air becomes light weight with respect to cold air. Thus, it always rises up.

What is the moving air called?

Air is constantly moving around the earth. This moving air is called wind. Winds are created when there are differences in air pressure from one area to another.

How cyclone is created?

The cyclone is formed when the warm, moist air rises upward over the ocean. As this air moves up, there is a formation of a low-pressure area below. Now the low-pressure area is filled with the high-pressure air from the surroundings. Again, the next batch of cool air gets warm and moist over the ocean moving upward.

What is a cyclone for kids?

A cyclone is a powerful spinning storm that contains strong winds and rain that swirl around a calm eye, or center. Cyclones form as warm, moist air rises over the waters of the South Pacific and Indian Ocean forming clouds and wind. When the wind speeds exceed 74 miles per hour, the storm becomes a cyclone.

What is cyclone also called?

Tropical cyclones, also known as typhoons or hurricanes, are among the most destructive weather phenomena. They are intense circular storms that originate over warm tropical oceans, and have maximum sustained wind speeds exceeding 119 kilometres per hour and heavy rains.

What is the eye of the cyclone?

A characteristic feature of tropical cyclones is the eye, a central region of clear skies, warm temperatures, and low atmospheric pressure.

How does a cyclone look?

Cyclones look like huge disks of clouds. They are between 10 and 15 kilometers thick. And they may be up to 1,000 kilometers in diameter. They are made of bands of storm clouds rolled into a spiral around a zone of very low pressure called the eye of the cyclone.

Why do cyclones cause rain?

Since a cyclone is also known as a low pressure center, moving in any horizontal direction away from the "Low" will result in increasing pressure. Air converges into a low pressure center which causes air to rise. The rising motion may produce clouds and precipitation.

Why does air rise and fall?

In summary, hot air rises because it is less dense than the surrounding air. Answer 2: Hot air pushes out on the air around it, and thus becomes less dense. Less dense air rises because the denser, cooler air sinks because it is heavier and gravity pulls on it more strongly.

Does air rise or sink?

Atmosphere Interactions

As air rises, air pressure at the surface is lowered. Rising air expands and cools (adiabatic cooling: that is, it cools due to change in volume as opposed to adding or taking away of heat). The result is condensation/precipitation. Cold air sinks.

Does hot air rise or fall?

Yes, hot air rises – but to say that it's the heat's natural state to want to rise would be wrong. It can move in any direction. Basically, heat travels from an area of higher temperature to a lower temperature.