Skimming Stones and Walking on Water: A Physics Exploration

Skimming Stones and Walking on Water: A Physics Exploration

Assessment

Interactive Video

Physics, Science

7th - 10th Grade

Hard

Created by

Aiden Montgomery

FREE Resource

The video explores the science behind skimming stones, explaining how a stone can bounce off water due to the reactive force exerted by the water. It introduces Professor Bach Hayes' theory and applies these principles to barefoot waterskiing, highlighting the importance of speed and surface area. The video also discusses the challenges faced during waterskiing, such as the immense pressure on the body, and demonstrates the techniques used to overcome these challenges. A practical demonstration shows how even a heavy object can skim on water if it travels at sufficient velocity.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main scientific question addressed in the introduction?

Why do stones dissolve in water?

How do stones bounce off the surface of water?

Why do stones float on water?

How do stones sink in water?

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Who is credited with explaining the phenomenon of skimming stones?

Dr. Marie Curie

Dr. Albert Einstein

Professor John Smith

Professor Bach Hayes

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the key factor that allows a stone to skim on water?

The color of the stone

The reactive force of water

The temperature of the water

The shape of the stone

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What principle does barefoot waterskiing share with skimming stones?

The principle of buoyancy

The principle of gravity

The principle of reactive force and surface area

The principle of air resistance

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a crucial factor for staying on the water's surface while barefoot waterskiing?

The depth of the water

The temperature of the air

The color of the skis

The speed of the boat

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a major challenge when attempting to walk on water?

The color of the water

The immense pressure on the body

The water temperature

The depth of the water

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What equipment is commonly used to help beginners learn to walk on water?

Flippers

Small rubber shoes with a wide sole

Life jackets

Water wings

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