Momentum
[ mo'mɛntəm ]
公共 Public
n. [物]动量;势头;动力;要素，契机;
💡 词根助记
moment重要 + um 表示场所、实物及抽象名词 → n. 动力,冲力,势头;动量
📝 例句
The total momentum at this instant is thus mv.
因此，在该时刻的总动量为mv。
a campaign that gained momentum
势头增大的一场运动
Hence a full subshell has zero angular momentum and is spherically symmetric.
于是，一个已经填满的支壳层的角动量为零，并且是球面对称的。
Angular momentum conservation is based on the isotropy of space.
角动量守恒是以空间的各向同性为基础的。
Our campaign is gaining momentum.
我们的运动在发展壮大.
🌱 联想助记
【记】谐音“莫骂汤姆”:莫骂汤姆,免得他失去动力
✅ 同义词
🔤 词根
-mov-表示“移动”
常见变体有-mob-、-mot-
📖 牛津释义
momentum
n [U]
1 force that increases the rate of development of a process; impetus 动力; 冲力; 势头
The movement to change the union's constitution is slowly gathering momentum. 修改工会宪章的运动正慢慢加强.
2 (physics 物) quantity of motion of a moving object, measured as its mass multiplied by its velocity 动量
The sledge gained momentum as it ran down the hill. 雪橇从山上下冲时动量越来越大.
🎯 考研助记
moment(movement运动)+um(科学名词)→运动能量→ 动量
🔁 扩展释义
*[mәu'mentәm]n. 动力, 动量【化】 动量【医】 动量
🌿 同词根单词
📖 同为「GRE」词汇
查看全部GRE词汇 ›🗣️ 情景例句
I'm about to go to the Post Office.
我正要去邮局。
The longest day has an end.
天下没有不散的盛筵。
My French isn't very good but it is enough to get by.
我的法语不是太好，但应付一下也够了。