Buoyancy and Light Reflection Concepts

Buoyancy and Light Reflection Concepts

Assessment

Interactive Video

Physics, Science

6th - 8th Grade

Hard

Created by

Ethan Morris

FREE Resource

The video explores an experiment where the presenter steps into a pool without getting wet, due to a thin layer of air next to the skin. This layer causes a silvery appearance due to total internal reflection of light. The presenter also notes increased buoyancy and remains dry upon exiting the pool, finding the experience unusual and intriguing.

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5 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the narrator suggest is responsible for the silvery appearance of their skin?

A thin layer of air

A thin layer of water

Reflection from the pool tiles

A special waterproof suit

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the term used to describe the phenomenon where light reflects off the water-air interface?

Refraction

Total internal reflection

Diffraction

Scattering

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How does the narrator describe the effect of the air layer on their buoyancy?

It makes them sink

It has no effect

It makes them more buoyant

It makes them less buoyant

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the narrator find surprising after exiting the water?

The water is cold

The air is humid

They are still dry

They are completely wet

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the narrator's overall reaction to the experience?

Indifferent

Disappointed

Amazed

Bored