Poll of the Day > Potd science quiz!!

(+) Yeah! (+)

Today, i will challenge the educated people of poll of the day to answer some question about daily science.
Its an yes or no question with reasoning and the scoring is like this:
1. 3 pts= your answer and reasoning are correct
2. 1 pts = only your answer are correct
3. 0 pts = none of the are correct
1st question
Your urine will saturate if you drink too much water. Yes or no?
(Sorry for bad english, its not my strongest language so make that what you want. )
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I'm not able to understand the question. Like...my peepee would be full if I drink too much water? Uh ohkay what?
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Yeah, can you rephrase the question? I don't understand it

Your pee will change colour from colorless to yellow if you drink too much
Yes or no?
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Yes, water dilutes the Urea in your urine. When you are dehydrated your urine will go darker yellow and have a much more pungent smell.
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Speaking purely for experience, but drinking enough water makes your urine look almost clear enough to be drinkable again. That's not to say you should, it just looks like you could.
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Since we're on this subject I'd like to know why my pee usually turns colorless if I've had any drinks. Beer too if I've had a couple of 'em.
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spooky96 posted...

Since we're on this subject I'd like to know why my pee usually turns colorless if I've had any drinks. Beer too if I've had a couple of 'em.

The kidneys mostly operate based on the osmotic gradient between blood and urine. If there's a lot of water in your blood relative to solutes, that water will diffuse across the membrane and solutes will be reabsorbed to concentrate the blood and dilute the urine, meaning there's a lower concentration of the yellow stuff (urobilin, which is a byproduct of hemoglobin degradation). Alcohol (as well as tea and a few other substances) effects a hormonal change that closely mirrors the one that happens when you're overhydrated, which reduces water retention and causes you to produce a large volume of dilute urine. Beer's particularly bad for this because the alcohol concentration is so low, so you actually are ingesting a large amount of liquid in addition to this effect.

ha21nagamas posted...

Your pee will change colour from colorless to yellow if you drink too much
Yes or no?

That is the opposite of what will happen.
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spooky96 posted...

Since we're on this subject I'd like to know why my pee usually turns colorless if I've had any drinks. Beer too if I've had a couple of 'em.

Dyes can turn your urine different colors, although I'm not sure if that's the reason why your urine is changing colors.

What colors are you seeing?

Also, alcohol is a diuretic, which can means your losing more water when you drink it.

ha21nagamas posted...

Your pee will change colour from colorless to yellow if you drink too much
Yes or no?

Your urine will generally get lighter the more you drink water. If your urine is an amber-ish color, you're pretty dehydrated. If it's like a straw yellow, you're doing well. If it's clear or almost clear, you're probably over hydrating

Mario and adjl gets the 3 point for answering correctly
adjl 2
Mario 1
2nd question
If a matter is really heavy, they have so much momentum when free falling (from 1000 feet ) and going to accelerate until they hit the ground. Yes or no?
( Not accounting aerodynamic here, just pure momentum and acceleration
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ha21nagamas posted...

Sorry for bad english, its not my strongest language so make that what you want.

Worst person that could make a topic like this tbh
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ha21nagamas posted...

Mario and adjl gets the 3 point for answering correctly
adjl 2
Mario 1
2nd question
If a matter is really heavy, they have so much momentum when free falling (from 1000 feet ) and going to accelerate until they hit the ground. Yes or no?
( Not accounting aerodynamic here, just pure momentum and acceleration

No points for me?
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I got 3 points.
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ha21nagamas posted...

If a matter is really heavy, they have so much momentum when free falling (from 1000 feet ) and going to accelerate until they hit the ground. Yes or no?
( Not accounting aerodynamic here, just pure momentum and acceleration

If we're ignoring aerodynamics, then yes, it will continue accelerating indefinitely (regardless of its weight). In practice, though, air resistance will prevent it from exceeding some terminal velocity that depends on its mass and the area of the surface that's exposed to the air.
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It will continue to accelerate until it hits the ground, yes.
Now, it won't get infinitly fast, because then you get into F=kgG/r^2 problems, but it does accelerate at different rates at the very least.

ha21nagamas posted...

If a matter is really heavy, they have so much momentum when free falling (from 1000 feet ) and going to accelerate until they hit the ground

everything on earth falls at the same rate, in a vacuum. (about 9.81 meters per second ).so the acceleration should remain constant.

Babbit55 posted...

No points for me?

Babbit55 posted...

Yes, water dilutes the Urea in your urine. When you are dehydrated your urine will go darker yellow and have a much more pungent smell.

Your answer is incorrect but your reasoning is good. Still 0 though.

For the answer both shadow and adjl got 3 points
adjl 3
Mario 1.5
Shadow 1.5
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Sorry green dragon my internet a bit shit and i dont see your answer.
Anybody got ideas for this quiz? You can post it here.
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ha21nagamas posted...

If a matter is really heavy, they have so much momentum when free falling (from 1000 feet ) and going to accelerate until they hit the ground. Yes or no?
( Not accounting aerodynamic here, just pure momentum and acceleration

No, you are likely to his Terminal Velocity where the drag will match the down force so the object will maintain a constant speed
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Babbit55 posted...

ha21nagamas posted...

If a matter is really heavy, they have so much momentum when free falling (from 1000 feet ) and going to accelerate until they hit the ground. Yes or no?
( Not accounting aerodynamic here, just pure momentum and acceleration

No, you are likely to his Terminal Velocity where the drag will match the down force so the object will maintain a constant speed

Woops babbit wrong again
"Not accounting aerodynamic"
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adjl posted...

The kidneys mostly operate based on the osmotic gradient between blood and urine. If there's a lot of water in your blood relative to solutes, that water will diffuse across the membrane and solutes will be reabsorbed to concentrate the blood and dilute the urine, meaning there's a lower concentration of the yellow stuff (urobilin, which is a byproduct of hemoglobin degradation). Alcohol (as well as tea and a few other substances) effects a hormonal change that closely mirrors the one that happens when you're overhydrated, which reduces water retention and causes you to produce a large volume of dilute urine. Beer's particularly bad for this because the alcohol concentration is so low, so you actually are ingesting a large amount of liquid in addition to this effect.

Is that also why you have to pee so often when drinking alcohol?

ha21nagamas posted...

If a matter is really heavy, they have so much momentum when free falling (from 1000 feet ) and going to accelerate until they hit the ground. Yes or no?

Fairly certain that regardless of weight, most objects would hit their terminal velocity long before they hit the ground if they were dropped from 1,000 feet. Exceptions being if they are fairly light and able to get a lot of drag due to it's shape.
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Mario_VS_DK posted...

Is that also why you have to pee so often when drinking alcohol?

Yep. It's also why alcohol dehydrates you.
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Mario_VS_DK posted...

Fairly certain that regardless of weight, most objects would hit their terminal velocity long before they hit the ground if they were dropped from 1,000 feet. Exceptions being if they are fairly light and able to get a lot of drag due to it's shape.

Well because we dont "put in" the aerodynamic factor into account, then the matter will accelerate until it hit something. They dont get any wind resistance.
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Babbit55 posted...

ha21nagamas posted...

If a matter is really heavy, they have so much momentum when free falling (from 1000 feet ) and going to accelerate until they hit the ground. Yes or no?
( Not accounting aerodynamic here, just pure momentum and acceleration

No, you are likely to his Terminal Velocity where the drag will match the down force so the object will maintain a constant speed

well then it is still no... If you do not account for effects on the object it will not move. No down-force or drag to cause or prevent acceleration....
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ha21nagamas posted...

Mario_VS_DK posted...

Fairly certain that regardless of weight, most objects would hit their terminal velocity long before they hit the ground if they were dropped from 1,000 feet. Exceptions being if they are fairly light and able to get a lot of drag due to it's shape.

Well because we dont "put in" the aerodynamic factor into account, then the matter will accelerate until it hit something. They dont get any wind resistance.

Oh, missed that part. I didn't realize we were dropping it in a place with no atmosphere.

You could have worded the question better. >.>
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Dyes can turn your urine different colors, although I'm not sure if that's the reason why your urine is changing colors.

What colors are you seeing?

Also, alcohol is a diuretic, which can means your losing more water when you drink it.

Its colorless. Like water.
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