The Leidenfrost Effect: How to Make a Liquid Levitate

Interactive Video
•
Science, Physics, Engineering, Chemistry, Other
•
11th Grade - University
•
Hard
Wayground Content
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5 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to a liquid when it encounters a surface much hotter than its boiling point?
It immediately evaporates.
It forms a solid layer.
It hovers over the surface on a vapor layer.
It cools down the surface.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary reason droplets move with minimal friction in the Leidenfrost Effect?
The surface is tilted.
The surface is extremely smooth.
The vapor layer reduces contact with the surface.
The liquid is highly viscous.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can the movement of Leidenfrost droplets be controlled for technological applications?
By using magnetic fields.
By adjusting the surface temperature.
By designing surfaces with specific grooves.
By changing the liquid's chemical composition.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What innovation allowed scientists to observe Leidenfrost droplets at lower temperatures?
Using a vacuum chamber.
Applying hydrophobic coatings to surfaces.
Increasing the surface area.
Using a different liquid.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the significance of using hydrophobic surfaces in Leidenfrost experiments?
They allow droplets to hover at lower temperatures.
They increase the boiling point of the liquid.
They change the color of the liquid.
They make the liquid more conductive.
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