Could you avoid being hit by a laser if you were in a room of mirrors?

Could you avoid being hit by a laser if you were in a room of mirrors?

Assessment

Interactive Video

Physics, Science

11th Grade - University

Hard

Created by

Quizizz Content

FREE Resource

The video explores a mathematical puzzle involving a room with mirrored walls and a laser that can bounce indefinitely. The challenge is to determine the minimum number of blockers needed to ensure safety from the laser. The solution involves using reflections to transform the problem into a linear path problem, ultimately requiring 16 blockers to guarantee safety. The video also acknowledges contributions from mathematicians Peter Winkler and Martin Gardner.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main challenge presented in the laser puzzle?

To move the mirrors to redirect the laser

To block the laser using a finite number of point blockers

To find a way to reflect the laser infinitely

To increase the energy of the laser

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Who is credited with the original concept of the laser puzzle?

Leonhard Euler

Peter Winkler

Isaac Newton

Albert Einstein

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What technique is used to simplify the problem of determining the laser's path?

Using a laser pointer

Reflecting the room and target

Changing the color of the laser

Increasing the size of the room

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How is the path of the laser transformed to make it easier to analyze?

By changing its speed

By splitting it into multiple beams

By converting it into a linear path through reflections

By bending it around corners

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the role of reflections in solving the laser puzzle?

They change the laser's color

They help visualize and block the laser's path

They make the laser disappear

They increase the laser's energy

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the outcome of using reflections to analyze the laser's path?

The laser becomes invisible

The laser changes direction randomly

The laser's path becomes predictable and blockable

The laser speeds up

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the significance of the midpoint in determining blocker placement?

It is the point where the laser changes color

It is where the laser loses energy

It is where the laser speeds up

It is used to place blockers to stop the laser path

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