Scientists Just Figured Out How Washing Machines Work?!

Scientists Just Figured Out How Washing Machines Work?!

Assessment

Interactive Video

Science, Chemistry

11th Grade - University

Hard

Created by

Quizizz Content

FREE Resource

The video explores the mystery of how washing machines clean clothes, a process not fully understood until 2018. It explains the role of surfactants, which help remove dirt from clothes, and the stagnant core problem, where soap struggles to penetrate intra-yarn pores. The solution involves the rinse cycle and diffusio phoresis, which helps remove dirt more efficiently. Experiments using sodium laural sulfate demonstrated this process. The findings could lead to more efficient washing machines, reducing water and energy use, and potentially faster rinsing speeds.

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7 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

What is the primary function of surfactants in washing machines?

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

Explain the concept of micelles and their role in the cleaning process.

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3.

OPEN ENDED QUESTION

3 mins • 1 pt

What was the stagnant core problem in washing machines?

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4.

OPEN ENDED QUESTION

3 mins • 1 pt

What findings did the 2018 research paper reveal about the cleaning process?

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5.

OPEN ENDED QUESTION

3 mins • 1 pt

How does diffusio phoresis contribute to the cleaning process in washing machines?

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6.

OPEN ENDED QUESTION

3 mins • 1 pt

Discuss the implications of the research findings on detergent efficiency and environmental impact.

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7.

OPEN ENDED QUESTION

3 mins • 1 pt

What future advancements in washing technology were suggested based on the research?

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