1.impulse?
~ (to do sth) 沖動；心血來潮；一時的念頭a sudden strong wish or need to do sth, without stopping to think about the results
動力；沖力；沖量a force or movement of energy that causes sth else to react
推動力；刺激something that causes sb/sth to do sth or to develop and make progress
2.equivalent?
（價值、數量、意義、重要性等）相等的，相同的equal in value, amount, meaning, importance, etc 等效的.
n.相等的東西；等量；對應詞a thing, amount, word, etc. that is equivalent to sth else
alternative ?
可供選擇的事物a thing that you can choose to do or have out of two or more possibilities
可供替代的that can be used instead of sth else
非傳統的；另類的different from the usual or traditional way in which sth is done
As she was no horsewoman, walking was her only alternative.
她既然不會騎馬，唯一的辦法便只有步行。
The same is to be able to save technology into a good market an alternative path.
這同樣是能夠將好技術轉化為好市場的另一條路徑。
3.slope 斜坡 山坡 斜面?
4lead 鉛 領導 導線
5.slowed down by air resistance,
??perform the experiment 做實驗
6.it was always acted on by the same force,set it moving?
7. What happens to a body when a force does act on it is given by Newton's second law.
?at a rate that is proportional to the force
The same force acting on a body of twice the mass will produce half the acceleration.
cancel each other 互相抵消
gravitational attraction 地球引力 重力
a star is exactly one quarter that of a similar star at half the distance.與距離的平方成反比
9.elliptical ?橢圓的，（因太簡練說的太少）晦澀難懂的
ellipse 橢圓
eclipse ，in eclipse 失色的 lunar eclipse月食 ?solar eclipse日食
10.spiral
螺旋形；螺旋式a shape or design, consisting of a continuous curved line that winds around a central point, with each curve further away from the centre
逐漸加速上升（或下降）a continuous harmful increase or decrease in sth, that gradually gets faster and faster ?逐漸加速上升，螺旋式上升（或下降）
11.with respect to 相對于
One could equally well say that body A was at rest and body B was moving at constant speed with respect to body A,or that body B was at rest and body A was moving
12.contant?
adj.連續發生的；不斷的；重復的happening all the time or repeatedly
不變的；固定的；恒定的that does not change
n.常數；常量a number or quantity that does not vary
constant temperature 恒溫
13. rotation
旋轉；轉動the action of an object moving in a circle around a central fixed point
（旋轉的）一周，一圈one complete movement in a circle around a fixed point
輪換；交替；換班the act of regularly changing the thing that is being used in a particular situation, or of changing the person who does a particular job
earth‘s rotation 地球自轉 and its motion around the sun 公轉
14.axis 復數 axes?
15. curve 曲線 彎曲 弄彎
16.accord with 與。。一致?
Newton was very worried by this lack of absolute position, or absolute space, as it was called, because it did not accord with his idea of an absolute God.絕對上帝
irrational belief 非理性信仰
illusion 錯覺 假象 ambiguous 模棱兩可的 interval 間歇 ?休息時間
c= 3*10 8m/s 30萬千米每秒
I got stood up.我被放鴿子了，?
get sb stand up ,bail on sb.放某人鴿子
sb. is a no-show,某人爽約 Don't blow me up 不要放我鴿子。
17. molecule, atom，proton，neutron，electron，分子，原子，質子，中子，電子，
? ? ?voltage 電壓 resistance 電阻 electric current，電流
18. hitherto ? adv ? until now; until the particular time you are talking about迄今；直到某時
19.clerk ?職員 文員
20.patent 專利 專利權 專利品 a明擺著的
21.postulate v&n
假定；假設to suggest or accept that sth is true so that it can be used as the basis for a theory, etc.
假定； 假說 a statement that is accepted as true, that forms the basis of a theory, etc.
First, we must postulate that if souls exist, they must have some mass.
第一，我們必須假定靈魂存在，他們必須保有物質。
22.equation 方程 ?，equative 等價的 等同的，equality （地位 權利）平等 equalize 使相同?
equivalent equal in value, amount, meaning, importance, etc.（價值、數量、意義、重要性等）相等的，相同的.equivalent
（價值、數量、意義、重要性等）相等的，相同的equal in value, amount, meaning, importance, etc 等效的.
n.相等的東西；等量；對應詞a thing, amount, word, etc. that is equivalent to sth else
23 intrinsic 固有的 內在的
1.belonging to something as one of the basic and essential features that make it what it is 2.by or in itself, rather than because of its associations or consequences 3.occurring wholly within or belonging wholly to a part of the body such as an organ 4relating to the essential qualities or features of something or someone
24.In other words, the theory of relativity put an end to the idea of absolute time
An equally remarkable consequence of relativity is the way it has revolutionized our ideas of space and time.
25.identical 完全一樣的
diagram ?
圖解 示意圖
platinum 鉑 白金 cesium 銫
time is not completely separate from and independent of space,
