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Quiz about From The Universe To A Quark
Quiz about From The Universe To A Quark

From The Universe To A Quark Trivia Quiz


This quiz is about "how it all works", from the scale of the universe down to the size of an atom. Have fun!

A multiple-choice quiz by foozalish55. Estimated time: 5 mins.
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Author
foozalish55
Time
5 mins
Type
Multiple Choice
Quiz #
355,909
Updated
Dec 03 21
# Qns
10
Difficulty
Average
Avg Score
7 / 10
Plays
649
Awards
Top 35% Quiz
- -
Question 1 of 10
1. We all know that the Earth is locked into orbit around the sun thanks to gravity, but exactly how far does the force of gravity go? Hint


Question 2 of 10
2. Speaking of gravity, what is the name for an object with so much mass that the gravitational force is generally believed to be too great to allow anything, even light, to 'escape'? Hint


Question 3 of 10
3. This unit of measurement is most commonly used when talking about things on the galactic scale, and is equal to about 3.26 light-years. In the film 'Star Wars', it was incorrectly referred to as a unit of time, rather than distance. What is it? Hint


Question 4 of 10
4. Using complicated math and sophisticated tools, we can measure how quickly the universe is expanding. It is going much faster than we thought it would, and to explain the difference scientists have introduced what mysterious substance? (Hint: the name reflects the fact that it is still very mysterious) Hint


Question 5 of 10
5. Due to the Doppler effect, light from a moving object is affected by that motion, resulting in the wavelength either increasing or decreasing. What is it called when the object is moving away from us, causing the wavelength to increase? (Hint: think about the visible spectrum) Hint


Question 6 of 10
6. Although an atom with orbiting electrons may look like a galaxy, they are very different systems operating under different rules. Which statement illustrates a significant difference between the two? Hint


Question 7 of 10
7. Credited to Werner Heisenberg, there is a principle that states that it is impossible to perfectly know both the position and momentum of a particle. What is the name of this unavoidable rule of quantum physics? Hint


Question 8 of 10
8. Often referred to as "spooky action at a distance", two particles that interact in a certain way and are then separated can remain linked. Later, a measurement of one particle can affect the other instantly, no matter how far apart they are. What is this called? Hint


Question 9 of 10
9. In our everyday life, a ball pushed with too little force will never make it up a steep hill, no matter how many times we try. In the quantum world, what process would allow a particle to simply go through the hill and appear on the other side? Hint


Question 10 of 10
10. Even though there are a huge number of differences between the galactic and quantum scales, there is a hypothesis which states that they are repeated layers of reality and are actually very similar in a number of surprising ways. Based on fractals, what is the name of this concept? Hint



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Quiz Answer Key and Fun Facts
1. We all know that the Earth is locked into orbit around the sun thanks to gravity, but exactly how far does the force of gravity go?

Answer: An infinite distance, but at some point you won't notice it anymore.

Even though the effects of gravity technically go on forever, we can talk about 'escaping' it, meaning that we are far enough away that we don't notice it anymore. The 'escape velocity' for a planet (like Earth) is determined using calculus to account for the infinite range of gravity. Amazingly, gravity is actually the weakest known force, even though it holds massive planets firmly in its grasp!
2. Speaking of gravity, what is the name for an object with so much mass that the gravitational force is generally believed to be too great to allow anything, even light, to 'escape'?

Answer: Black hole

Most astrophysicists now believe that a super-massive black hole sits at the center of nearly every galaxy in the universe!
3. This unit of measurement is most commonly used when talking about things on the galactic scale, and is equal to about 3.26 light-years. In the film 'Star Wars', it was incorrectly referred to as a unit of time, rather than distance. What is it?

Answer: Parsec

The magnitude of this unit, 3.26 light-years, was originally derived while dealing with a phenomenon called 'parallax', which makes objects appear to be in another location because of the changing position of the viewer. The parsec arose when astronomers where looking for a way to determine the distance to a celestial object, which is difficult to do because the earth itself is moving. With the help of trigonometry, scientists figured out how to do it, and one result of all this math is the widely misunderstood parsec.
4. Using complicated math and sophisticated tools, we can measure how quickly the universe is expanding. It is going much faster than we thought it would, and to explain the difference scientists have introduced what mysterious substance? (Hint: the name reflects the fact that it is still very mysterious)

Answer: Dark energy

In order to account for all of our observations, it turns out that dark energy must make up about 73% of all mass-energy in the entire universe. That means there is 73% of the universe we know almost nothing about!
5. Due to the Doppler effect, light from a moving object is affected by that motion, resulting in the wavelength either increasing or decreasing. What is it called when the object is moving away from us, causing the wavelength to increase? (Hint: think about the visible spectrum)

Answer: Redshift

An ambulance passing by gives a great demonstration of how this works with sound, but with light the different wavelength results in a different color. By determining how much the light has 'shifted' towards the red end of the spectrum, we can actually determine how fast it is moving away from us!
6. Although an atom with orbiting electrons may look like a galaxy, they are very different systems operating under different rules. Which statement illustrates a significant difference between the two?

Answer: Electrons are not held in orbit by gravity

Electromagnetic forces are responsible for keeping the electron in orbit. As it turns out, the world of the very small is a strange place indeed! Many of the rules of everyday life we take for granted simply don't apply there, as the following questions will illustrate.
7. Credited to Werner Heisenberg, there is a principle that states that it is impossible to perfectly know both the position and momentum of a particle. What is the name of this unavoidable rule of quantum physics?

Answer: Uncertainty

Even though it sounds like a problem with our technology, it is actually due to the dual nature of very small particles (they act like particles and waves). There is a lot of great literature about this out there, so if you are interested, check it out!
8. Often referred to as "spooky action at a distance", two particles that interact in a certain way and are then separated can remain linked. Later, a measurement of one particle can affect the other instantly, no matter how far apart they are. What is this called?

Answer: Entanglement

Many people have trouble accepting this, because it implies the transmission of information at faster-than-light speeds. However, this phenomenon has been demonstrated and is widely accepted, so presumably we are just waiting for a simple explanation regarding what exactly is happening and how it is possible.
9. In our everyday life, a ball pushed with too little force will never make it up a steep hill, no matter how many times we try. In the quantum world, what process would allow a particle to simply go through the hill and appear on the other side?

Answer: Tunneling

Another mysterious quality of very small things, tunneling seems to defy logic and common sense. The explanation involves the wave-like nature of these particles, which means that the position of the particle at any moment is the result of probability. So as long as there is a chance of it appearing on the other side of the hill, it will, sooner or later.
10. Even though there are a huge number of differences between the galactic and quantum scales, there is a hypothesis which states that they are repeated layers of reality and are actually very similar in a number of surprising ways. Based on fractals, what is the name of this concept?

Answer: Self-similar cosmological model

Although it sounds strange, fractals do pop up in nature all the time. We see them in seashells, snowflakes, ferns, pineapples, coastlines, and many more! The real question is, if the theory is true, what does that mean about the nature and fate of our universe?
Source: Author foozalish55

This quiz was reviewed by FunTrivia editor CellarDoor before going online.
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