Science Questions

[Belda_Da_Hun]

1. Whats the 4th phase of matter? Solid, Liquid, Gas, _______

2. If a substance goes from a liquid to a gas its called evaporating or boiling point. So what is it called when a substance goes from a solid directly to a gas?
3. What are the 2 types of nuclear reactions?

4. Stars are in what phase of matter?

5. What is the mechanical advantage of a pulley system with 6 pulleys? (i.e. 3 pulleys on top and 3 pulleys on the bottom)

I know that answers and i won't post them until there are about 15 or more posts. All of these questions are from right off the top of my head.

 

[Belda_Da_Hun]

i don't think these questions are to hard, are they? At least posy a i don't know if you do not know a question

 

[halfracedrift]

1> Plasma
2: Sublimation
3: Fusion + Fission
4: Plasma?
5: dunno

i haven't done those physics yet though...

 

[Belda_Da_Hun]

ohh good, ill have to post more up when im not to lazy to read my science notes. but there is still question 5 to answer

 

[Belda_Da_Hun]

ok here is some more...


6. What is plasma? (not looking for the answer "4th phase of matter"}
7. What do you get when you destroy mass? (couple answers for this)
8. Whats are all 5 types of energy?
9. What is the difference between heat, heat energy, and temperature?
10. Whats the phrase "absolute zero" mean?

 

[halfracedrift]

6: Beats me
7: uhhhhh
8: uhhhhhm!
9: doo de doo..
10: When all molecules cease to move, that is, at -273 kelvin ...?

 

[keitshi]

1. Plasma
2. Sublimation
3. Fusion, Fission
4. Gas
5. The weight is lessened three times.
6. A state when the particles of the atom are scattered
7. Energy (annihilation: mater+antimater)
8. Heat, motion, potential...
9. Their descriptions (feeling, state, measurement)
10.When particle movement stops (theoretical)

 

[keitshi]

Allright, but can you explain the theory of a time machine using a wormhole?

 

[halfracedrift]

Wormholes are thought to be able to link galaxies
Since galaxies are very far away, it is (as of now) impossible to reach them
however, scienctists beleive that a wormhole drastically cuts down travel time because it provides a shortcut for galaxies
The object/person will travel faster than the speed of light

When a person travels faster than the speed of light, theoretically, they are slower than time
you can travel to a speed so great that time is "reversed"


Thats what i remember from readin howstuffworks.com

 

[keitshi]

Yeah, thats one way to put it.

But heres an example: (I find it quite interesting)

Lets say we have one wormhole which spans fron points A to B. A is stationary while B is being accelerated to high speed, first away from A then toward it slowing down. Because of the occurring time dilatation B:s time is left behind A:s time. When the wormhole ends meet each other, the time in B is behind A. If time in A is one year and in B one day, after going throught the wormhole youll be going back in time 355 days!

But there is a catch. According to quantum theory even a vacum isnt empty. There are many small quantum anomalies appearing and disappearing. These anomalies might go inside the wormhole and go back and forth through it gradually amplifying theyreselves. This might cause the disturbance to grow to unlimited proportions causing the wormhole to explode before it can become a time machine.

Okay, I might have some incorrect words there because the sourse for this is not in english.

 

[keitshi]

Originally posted by halfracedrift
Wormholes are thought to be able to link galaxies
Since galaxies are very far away, it is (as of now) impossible to reach them
however, scienctists beleive that a wormhole drastically cuts down travel time because it provides a shortcut for galaxies
The object/person will travel faster than the speed of light

When a person travels faster than the speed of light, theoretically, they are slower than time
you can travel to a speed so great that time is "reversed"


Thats what i remember from readin howstuffworks.com

But hey, youre forgetting that its impossible to travel faster than light. A wormhole is a shortcut like you said. It enables a different route than the straight line that light travels in spatial time. So in asense youre not going faster than light youre just cutting corners. But the result is that you get there faster than light. Cool, eh?

 

[milefile]

1. Plasma.

 

[milefile]

2. Vaporizing?

 

[milefile]

4. Plasma again?

 

[milefile]

5. I can't remember.

 

[Belda_Da_Hun]

mile mile stop spamming. wow you out of all people spamming

 

[milefile]

I was just trying to answer each without looking at anyone else's answers. Sheesh.

 

[Belda_Da_Hun]

Here Are the Answers!!!

1. Whats the 4th phase of matter? Solid, Liquid, Gas, _______
plasma

2. If a substance goes from a liquid to a gas its called evaporating or boiling point. So what is it called when a substance goes from a solid directly to a gas?3. What are the 2 types of nuclear reactions?
sublimation

4. Stars are in what phase of matter?
plasma

5. What is the mechanical advantage of a pulley system with 6 pulleys? (i.e. 3 pulleys on top and 3 pulleys on the bottom)
mechanical advantage = 6

6. What is plasma? (not looking for the answer "4th phase of matter"}
When molecules are moving so fast they aquire a charge.

7. What do you get when you destroy mass? (couple answers for this)
Energy, Heat, Gamma Rays, ect.

8. Whats are all 5 types of energy?
Heat, Electromagnetic, Nuclear, Mechanical, Chemical.

9. What is the difference between heat, heat energy, and temperature?
Heat is the total ammout of Kenetic Energy per atom in a object. Heat E is the avg. KE per atom in a object. Temp. is avg. KE for ALL the atoms in a object.

10. Whats the phrase "absolute zero" mean?
When the temp is so low that their is No KE per atom. I.E. the object has literally no energy at all.

 

[Belda_Da_Hun]

More!!!

11. Expain the difference between nuclear fission & fusion.

12. What is potential Energy?

13. What is Kenetic E?

14. If a basket ball is used to represent the nucleus of an atom, to scale, how far away will the NEAREST electron be?

15. Name the force(s) that hold an atom together.

16. List the 2 main parts of an atom.

17. list all the parts in an atom's nucleus.

 

[Jpec07]

1. Whats the 4th phase of matter? Solid, Liquid, Gas, _______
Plasma

2. If a substance goes from a liquid to a gas its called evaporating or boiling point. So what is it called when a substance goes from a solid directly to a gas?
Sublimination (something like that, been a while since I took Physics)

3. What are the 2 types of nuclear reactions?
Fusion and Fission

4. Stars are in what phase of matter?
Plasma

5. What is the mechanical advantage of a pulley system with 6 pulleys? (i.e. 3 pulleys on top and 3 pulleys on the bottom)
Probably that the weight is distributed the most evenly among the pulleys.

6. What is plasma? (not looking for the answer "4th phase of matter"}
When the particles obtain so much energy that they're not actual atoms anymore (floating around subatomic particles)

7. What do you get when you destroy mass? (couple answers for this)
You get alot of energy (the bigger the mass being destroyed, the more energy being exerted)

8. Whats are all 5 types of energy?
???

9. What is the difference between heat, heat energy, and temperature?
Just what they are...

10. Whats the phrase "absolute zero" mean?
No energy or movement whatsoever in the particles of a substance.

11. Expain the difference between nuclear fission & fusion.
Fusion is when the nuclei come together, Fission is when they split apart.

12. What is potential Energy?
The energy a substance could have if a catalyst were introduced.

13. What is Kenetic E?
kenetic=constant

14. If a basket ball is used to represent the nucleus of an atom, to scale, how far away will the NEAREST electron be?
3 yards?

15. Name the force(s) that hold an atom together.
Gravity, magnetism...

16. List the 2 main parts of an atom.
Nucleus, electron

17. list all the parts in an atom's nucleus.
Protons, neutrons...

 

[halfracedrift]

14. Roughly a few blocks down? wait.. thats if the nucleus was a golf ball..
i'd say.. ~ 200 blocks? lol

 

[Acidman]

i believe that there is a 5th form of matter which would be LCD, which is electrified liquid crystals, like what's in a digital watch, i think. I love science.

 

[halfracedrift]

..... i thought LCD was liquid crystal display..?

 

[keitshi]

11. Braking of nucleus and joining
12. Energy of a particle in a gravitational or magnetic field relative to its positon there
13. Energy that is based on the speed of massed particle
14. Very far...who cares, lol
15. Weak effect in the nucleus and...
16. nucleus, electron field
17. protons and neutrons, these build up of smaller parts whose names I cant remember.

 

[Belda_Da_Hun]

are we ready 4 answers 4 questions 11-17

 

[Klostrophobic]

Originally posted by Belda_Da_Hun
More!!!

11. Expain the difference between nuclear fission & fusion.

12. What is potential Energy?

13. What is Kenetic E?

14. If a basket ball is used to represent the nucleus of an atom, to scale, how far away will the NEAREST electron be?

15. Name the force(s) that hold an atom together.

16. List the 2 main parts of an atom.

17. list all the parts in an atom's nucleus.

11. In fusion, the nuclei of atoms fuse to release energy. In fission the nuclei of atoms split to release energy.

12. The potential something has to do work.

13. ?

14. That's a dumb question. What's it like 47.254 miles or something?

15. Strong force, electronegativity.

16. Nucleus, energy shell.

17. Proton, Netron, quarks. Or were quarks proven to not exist?

 

[Raptor65]

18. What is a mole (not the animal)?

19. What is the Avagadros number and its equation?

20. Is water polar or non-polar?

21. What is the diff. between oxidation and reduction reactions?

22.How many molecules are in 1.65 moles?

I could go on for a while but answer these.

 

[Jpec07]

Originally posted by Raptor65
18. What is a mole (not the animal)?

19. What is the Avagadros number and its equation?

20. Is water polar or non-polar?

21. What is the diff. between oxidation and reduction reactions?

22.How many molecules are in 1.65 moles?

I could go on for a while but answer these.

18. Mole: (n) a furry burrowing creature

19. Ava-what?

20. the individual molecules are polar, however water as a whole is not (Not even frozen because the arrangement of the molecules cancels the field out).

21. Oxidation is when oxygen gets added to something (e. g. rust) and a reduction reaction would be like acid on concrete).

22. countless billions (but how can you have .65 mole??)

23. (correct answer goes here)

24. (correct answer goes here)

25. (correct answer goes here)

and so on...

 

[Raptor65]

18.WRONG

19.LOL!

20.Um, rethink that one. I'm talking about the molecule as a whole.

21.WRONG

22.That was a really hard question. I barely understand it myself.(Hint-Look for it on the internet!!)

 

[Jpec07]

18 and 22 were jokes, I took an educated guess on 21, 20 I know I'm correct on (individual water molecules are polar-meaning they have a positive and negative charge, however a glass of water has no polarity because the water is liquid and moving around freely so the polarities don't match up). 19: what is
avagadros?