Building an Infinite Bridge

Building an Infinite Bridge

Assessment

Interactive Video

Mathematics

9th - 10th Grade

Hard

Created by

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The video explores a mathematical paradox where a bridge can be built to extend infinitely using blocks. It explains the step-by-step process of balancing blocks to maximize the bridge's length, supported by mathematical proofs involving the harmonic series. The video also discusses the limitations of physical construction and introduces a faster method using a parabolic stack. Additionally, it addresses comments on Shor's algorithm and quantum computing, emphasizing the potential for new cryptographic methods.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary goal when balancing blocks on the edge of a table?

To keep all blocks on the table

To stack the blocks vertically

To extend the blocks as far as possible from the table

To make the blocks fall off the table

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When balancing two blocks, what is the value of x that ensures the center of mass is at the edge of the table?

1/6

1/2

1/4

1/8

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What mathematical series is used to describe the extension of the bridge with infinitely many blocks?

Fibonacci series

Harmonic series

Arithmetic series

Geometric series

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the approximate length of the bridge when using 10 blocks?

1.46 centimeters

2.3 centimeters

3.5 centimeters

1.8 centimeters

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the relationship between the harmonic series and infinity?

The harmonic series is always less than one

The harmonic series is equal to zero

The harmonic series diverges, meaning it grows indefinitely

The harmonic series converges to a finite number

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the growth rate of the new bridge using a parabolic stack?

n to the 1/5

n to the 1/2

n to the 1/3

n to the 1/4

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Who are the mathematicians credited with creating the parabolic stack?

Carl Gauss and Leonhard Euler

Pythagoras and Euclid

Mike Paterson and Uri Zwick

Isaac Newton and Albert Einstein

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