Hot Air and Smoke Experiment

The video tutorial demonstrates an experiment showing how hot air rises and creates space, which is then occupied by cooler air. The instructor uses a lit candle and incense smoke to visually explain the concept. As the hot air rises, it creates a space that the smoke from the incense fills, illustrating the movement of air. The experiment highlights the principle that hot air rises, creating a vacuum that cooler air fills.

What is the initial setup required for the experiment involving a lit candle?

• A lit candle and a fan

• A lit candle and a glass of water

• A lit candle and a piece of paper

• A lit candle and a cut-off part to create space

What is observed when the smoke is moved close to the space created by the hot air?

• The smoke changes color

• The smoke moves away from the space

• The smoke disappears

• The smoke enters the space

Why does the smoke move into the space created by the hot air?

• Because the smoke is heavier than air

• Because the hot air pushes the smoke

• Because the smoke is lighter than air

• Because the space is cooler and attracts the smoke

What does the experiment demonstrate about hot air?

• Hot air remains stationary

• Hot air rises and creates space

• Hot air cools down quickly

• Hot air sinks and creates space

What happens to the space created by the rising hot air?

• It collapses

• It is filled with cooler air from outside

• It is filled with smoke

• It remains empty

What is the purpose of the experiment?

• To show that smoke is heavier than air

• To demonstrate that hot air rises and creates space

• To prove that candles produce smoke

• To illustrate that smoke can change direction

What does the narrator encourage viewers to do at the end of the experiment?

• To avoid using candles

• To try the experiment themselves

• To watch more videos

• To write a report on the experiment