momentum; physics quantity
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Meanings
1 sense · 4 examplesnoun
momentum; a vector quantity in physics
formalA fundamental concept in classical mechanics. It is a conserved quantity in a closed system without external forces.
Zài在
pèng碰
zhuàng撞
zhōng中
，
xì系
tǒng统
de的
zǒng总
dòng动
liàng量
shì是
shǒu守
héng恒
de的
。
In a collision, the total momentum of the system is conserved.
Huǒ火
jiàn箭
tuī推
jìn进
lì利
yòng用
le了
dòng动
liàng量
shǒu守
héng恒
yuán原
lǐ理
。
Rocket propulsion utilizes the principle of conservation of momentum.
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Jì计
suàn算
zhè这
ge个
wù物
tǐ体
de的
dòng动
liàng量
xū需
yào要
zhī知
dào道
tā它
de的
zhì质
liàng量
hé和
sù速
dù度
。
Calculating the momentum of this object requires knowing its mass and velocity.
Jiǎo角
dòng动
liàng量
shì是
miáo描
shù述
wù物
tǐ体
xuán旋
zhuǎn转
yùn运
dòng动
de的
wù物
lǐ理
liàng量
。
Angular momentum is a physical quantity that describes the rotational motion of an object.