Physics Notes Chapter 1
1. Temperature scale (MC/ Long Q.)
** Normal atmospheric pressure = pressure at sea level
l Lower fixed point (ice point冰點)
n Pure melting ice
n Normal atmospheric pressure
n 0℃
l Upper fixed point (melt point沸點)
n Steam over pure boiling water
n Normal atmospheric pressure
n 100℃
2. Thermometers (應該MC出…, 看書本那個就OK)
3. Calibrating thermometers formula
Ls – L0
L100- L0
**Ls = length of alcohol/ mercury when placed in some substance
L0 = length of alcohol/ mercury when placed in melting ice
L100= length of alcohol/mercury when placed in boiling water
看完這部分後不明白的話, 可以看書P.8 Example 1
4. Particle motion & temp. (把這個表記住, Chem有用)
|
States of Matter |
General theory |
Arrangement of particles |
Movement of particles |
|
Solid |
- Fixed shape& volume |
-Closely toghther
-Arranged in regular pattern
-Held potision by strong forces |
-Can only vibrates each other
-At fixed potision |
|
Liquid |
-Fixed volume, X Fixed shape
=> flow & taken up shape of container |
-Close together
-Not fixed potisions |
-Can move from one place to another |
|
Gas |
- X Fixed Volume & shape
-Quickly fill any space available |
-Very far apart
-X Attractive forces between particles |
-Moves at random
-At very high speed
-Collid each other(相撞)
-Bombard the walls of container |