Por qué aún NO ENTENDEMOS el EFECTO MPEMBA?

Por qué aún NO ENTENDEMOS el EFECTO MPEMBA?

Assessment

Interactive Video

Physics

9th - 10th Grade

Hard

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The video explores the Mpemba effect, where hot water freezes faster than cold water, a phenomenon observed since ancient times. It discusses historical accounts, scientific studies, and challenges in replicating the effect. Various potential causes, such as evaporation and convection currents, are examined. The video highlights the complexity of experimental setups and compares the Mpemba effect to other phenomena like the Leidenfrost effect, emphasizing that new scientific discoveries can be found in everyday occurrences like a glass of water.

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7 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

What is the Pemba effect and who is it named after?

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

Describe the observations made by Erasto Bartolomeo regarding the freezing of hot and cold water.

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3.

OPEN ENDED QUESTION

3 mins • 1 pt

How did Aristotle contribute to the understanding of the Pemba effect?

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4.

OPEN ENDED QUESTION

3 mins • 1 pt

What are some of the variables that can affect the freezing time of water according to recent studies?

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5.

OPEN ENDED QUESTION

3 mins • 1 pt

Explain the role of convection currents in the freezing process of water.

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6.

OPEN ENDED QUESTION

3 mins • 1 pt

What challenges are faced when conducting experiments to test the Pemba effect?

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7.

OPEN ENDED QUESTION

3 mins • 1 pt

How does the Leidenfrost effect relate to the behavior of water on hot surfaces?

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