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Quiz about 5050 in Science XI
Quiz about 5050 in Science XI

50/50 in Science XI Trivia Quiz


Keep it going. This is the eleventh installment of 50/50 in science quiz.

A multiple-choice quiz by Earthboy. Estimated time: 3 mins.
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Author
Earthboy
Time
3 mins
Type
Multiple Choice
Quiz #
373,791
Updated
Dec 03 21
# Qns
15
Difficulty
Average
Avg Score
12 / 15
Plays
837
Last 3 plays: calmdecember (12/15), Jane57 (15/15), Guest 84 (13/15).
- -
Question 1 of 15
1. Comets are known as "dirty snowballs".


Question 2 of 15
2. Multiplying two negative numbers results in a negative number.


Question 3 of 15
3. Methanol and ethanol are alcohols.


Question 4 of 15
4. Lightning never strikes the same point twice.


Question 5 of 15
5. Humans can hear all frequencies of sounds.


Question 6 of 15
6. Rational numbers do NOT include repeating decimals such as 0.444444... and 0.171717....


Question 7 of 15
7. Noble gases can form compounds.


Question 8 of 15
8. At one time, a planet named Vulcan was claimed to exist in the Solar System.


Question 9 of 15
9. Geographic poles can shift, or in other words the poles can move to different locations, on the globe.


Question 10 of 15
10. Tornadoes kill more people than any other weather event in the U.S.


Question 11 of 15
11. Snow glowing in the dark contributes to bright winter nights.


Question 12 of 15
12. Studies have found that women think differently than men.


Question 13 of 15
13. Brownfield refers to drought-stricken farmland.


Question 14 of 15
14. Lightning is hotter than the surface of the sun.


Question 15 of 15
15. There are colors that we can't see or even imagine.



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Most Recent Scores
Mar 25 2024 : calmdecember: 12/15
Mar 15 2024 : Jane57: 15/15
Mar 13 2024 : Guest 84: 13/15
Mar 09 2024 : Dorsetmaid: 13/15
Feb 24 2024 : saratogarox: 13/15
Feb 15 2024 : Guest 97: 11/15
Feb 03 2024 : bigwoo: 12/15

Score Distribution

quiz
Quiz Answer Key and Fun Facts
1. Comets are known as "dirty snowballs".

Answer: True

Comets are known as dirty snowballs since they are made out of ice, rock and dust. They originate in the outer fringes of the solar system far away from the sun. Some occasionally spiral close to the sun where we sometimes see the bright head and long tail in the night sky as they pass by. People have been seeing comets since antiquity and during classical times people were afraid that comets were harbingers of doom. Comets may have wiped out the dinosaurs 65 million years ago.
2. Multiplying two negative numbers results in a negative number.

Answer: False

Everybody knows that multiplying positive numbers equals a positive number, but negative numbers would not mirror the behavior of positive numbers as multiplying two negative numbers always results in a positive number, never a negative number. Multiplying positive and negative numbers always results in a negative number unless if there are even number of negative numbers in them.
3. Methanol and ethanol are alcohols.

Answer: True

Alcohol is a group of chemical compounds that contain carbon and members of the hydroxyl group. Methanol (CH3OH) and ethanol (C2H5OH) are two of the simplest alcohols. Ethanol is found in alcoholic beverages, while methanol intake can result in loss of vision and is fatal in larger amounts.
4. Lightning never strikes the same point twice.

Answer: False

That was a myth. Since lightning strikes at random points, there is always the possibility of striking a particular spot multiple times, especially on tall objects.
5. Humans can hear all frequencies of sounds.

Answer: False

Humans can only hear at frequencies from 20 hertz to 20,000 hertz. The range where humans are able to hear is called audio or sonic. The sound frequency above 20,000 Hz is called ultrasound, while below 20 Hz it is called infrasound. Other creatures can hear at different frequency ranges than humans. Bats and dogs can hear ultrasounds while snakes, whales, dolphins, giraffes and elephants can hear infrasounds.
6. Rational numbers do NOT include repeating decimals such as 0.444444... and 0.171717....

Answer: False

Rational numbers encompass all of the integers and decimals with patterns, both terminating and repeating decimals. 4, -2, 0.3, and 0.567567 (recurring) are all examples of rational numbers. Rational is derived from the word ratio.

Its opposite is an irrational number, defined as decimals that go on forever without a repeating pattern. Irrational numbers include the square root of any non-square number, such as 2, pi, and e.
7. Noble gases can form compounds.

Answer: True

Even though noble gases have eight valence electrons, making them stable and unreactive, noble gases can react to form compounds under special circumstances. Identified noble gas compounds are almost exclusively made artificially. An example of a noble gas compound is xenon tetrafluoride (XeF4), which is one of the first such compounds identified.
8. At one time, a planet named Vulcan was claimed to exist in the Solar System.

Answer: True

The planet Vulcan, named after the Roman god of fire, was proposed as orbiting closer to the Sun than Mercury. Urbain Le Verrier, who discovered Neptune in 1846, proposed the planet's existence in 1859 by observing the precession of Mercury's orbit. Astronomers later doubted its existence and spacecraft SOHO and STEREO found no objects bigger than 6 km (4 miles) across between Mercury and the Sun.
9. Geographic poles can shift, or in other words the poles can move to different locations, on the globe.

Answer: True

It is true that poles can move to different locations on the surface due to shifts in axes of rotation relative to the crust and mantle. The process is called true pole wander. There is evidence that a big pole shift occurred around 800 million years ago.
10. Tornadoes kill more people than any other weather event in the U.S.

Answer: False

Although tornadoes are the most destructive weather force, there is a silent weather event that kills more people than any others in the U.S. According to the National Oceanic and Atmospheric Administration, heat waves are the deadliest weather event, followed by flooding, then tornadoes. Heat kills 50% more people than tornadoes.
11. Snow glowing in the dark contributes to bright winter nights.

Answer: False

Snow itself does not glow, but it is true that snow causes nights to light up, due its high reflectivity. Bright nights are caused by snow reflecting artificial lighting such as from street lights. However there must be clouds in the sky for that to happen as clouds also work to reflect light. During clear nights, or in areas far away from cities and towns, snow on the ground does not significantly brighten the night.
12. Studies have found that women think differently than men.

Answer: True

The studies at the University of Pennsylvania discovered that women think differently than men due to differences in the neural connections between these genders. Women's brains have more connections between hemispheres, or from left to right, while men's brains have more connections within the hemispheres, or from front to back.
13. Brownfield refers to drought-stricken farmland.

Answer: False

Brownfield is a term coined in 1992 that applies to abandoned industrial and commercial sites. Whether or not the land can be reused for other purposes depends on how much hazardous waste remains on the sites.
14. Lightning is hotter than the surface of the sun.

Answer: True

Lightning has a temperature of 54,000°F or 30,000°C, five times hotter than the Sun's surface, at a temperature of 10,000°F or 5500°C. It sounds that if super-hot lightning touches you, you would be severely burned immediately, yet most victims survive being struck by lightning, as it flashes so briefly.
15. There are colors that we can't see or even imagine.

Answer: True

The colors that we can't see are yellowish blue (not green) and reddish green (not a shade of brown). The reason why we can't see them is because the opponent neurons in the retina of our eyes sense red light while inhibited by green, while others sense blue while inhibited by yellow.

However it is possible to see these hidden colors under special circumstances, by staring at red-green stripes or blue-yellow stripes using an eye tracker.
Source: Author Earthboy

This quiz was reviewed by FunTrivia editor rossian before going online.
Any errors found in FunTrivia content are routinely corrected through our feedback system.
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