打鐵趁熱!
送上台大物理系莊學長提供的「物理大餐」Part 2️⃣!
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⛓ 俐媽英文教室—物理單字篇part 2(古典物理學常用英文詞彙):
🧲 Classical physics 古典物理學
⭐️ 運動
1. kinematics (n.) 運動學 / dynamics (n.) 動力學
2. motion (n.) 運動
(運動學探討: translational (位置轉換)、rotational (轉動)、vibrational (震動) 等)
3. point particle (n.) 質點
4. trajectory (n.) 軌跡 (⚠️ -ject: shoot)
5. vector (n.) 向量 / scalar (n.) 純量
6. position (n.) 位置 (⚠️ pos: put)
7. displacement (n.) 位移 / distance (n.) 路徑長
8. velocity (n.) 速度 / speed (n.) 速率
9. acceleration (n.) 加速度
10. jerk (n.) 急跳度
11. average (a.) 平均的 / instantaneous (a.) 瞬間的 / constant (a.) 固定的
12. projectile motion (n.) 拋體運動
13. circular motion (n.) 圓周運動(⚠️ circum: around)
14. angular velocity (n.) 角速度
15. angular acceleration (n.) 角加速度
16. centripetal acceleration (n.)向心加速度
⭐️ Newtonian mechanics (classical mechanics) 牛頓力學
(Newton’s 3 laws)
17. inertia (n.) 慣性
18. force (n.) 力
* friction (n.) 摩擦力 (kinetic + ~ 動摩擦力 / static + ~ 靜摩擦力)
* tension (n.) 張力 / drag (force) (n.) 阻力 / gravity (n.) 重力
19. free-body diagram (n.) 力圖分析
20. equilibrium (n.) 平衡(⚠️ equi: equal)
* stable 穩定 / unstable 不穩定 / neutral 隨遇 (中性) + ~
⭐️ 能量、動量與彈碰
21. work (n.) 功
mechanical energy (n.) 力學能
the principle of the conservation of mechanical energy (n.) 力學能守恆原理
22. potential energy (n.) 位能 (勢能) / kinetic energy (n.) 動能
23. conservative force (n.) 保守力
24. momentum (n.) 動量 (linear + ~ 線動量 / angular + ~ 角動量)
* the conservation of linear momentum (n.) 線動量守恆
* the conservation of angular momentum (n.) 角動量守恆
25. impulse (n.) 衝量
26. collision (n.) 碰撞
elastic + ~ 彈性 / inelastic + ~ 非彈性
27. center of mass (CM) (n.) 質心
28. rigid body (n.) 剛體
⭐️ 重力與場
29. the principle of superposition (n.) 疊加原理
30. field (n.) 場 (⚠️ 英模曾經抄過各種「場」大餐,記得複習)
* gravitational field (n.) 重力場
* electromagnetic field (n.) 電磁場
⭐️ 克卜勒定律 (Keplers’ laws of planetary motion)
31. orbit (n.) 軌道
cf. orbital (n.) 軌域 (在高三化學淺談量子力學會講)
32. focus (n.) 焦點 (pl: foci)
33. perihelion (n.) 近日點 / aphelion (n.) 遠日點
cf. perigee (n.) 近地點 / apogee (n.) 遠地點
34. elliptical (a.) 橢圓的
35. escape velocity (n.) 脫離速度
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好多字俐媽都懂,
啊它們到底在講什麼?😂😂
(果然是門外漢哪⋯⋯)
感謝莊學長🙏🏼
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#俐媽英文教室
#俐媽英文教室物理篇
#歡迎其他領域孩子投稿貢獻
#傳道有先後
#術業有專攻
#台大明明精銳盡出
同時也有10000部Youtube影片,追蹤數超過2,910的網紅コバにゃんチャンネル,也在其Youtube影片中提到,...
「rotational motion」的推薦目錄:
rotational motion 在 Kit Mah Facebook 的最讚貼文
Rolling back on track🎡
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A favorite core strengthening movement of mine is no other than the classic ab wheel rollout but I'm performing this movement here at @aspirelife_wellness using their signature rotational thick grip dumbbells.
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This movement strengthen the core effectively preventing injuries especially from heavy deadlifts or squats.
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By predominantly strengthening the spine's ability to resist hyperextension it also trains the entire core musculature to function as a unit thus a total core strengthening exercise involving almost every of the core musculature from triceps, shoulders, lats, lower back, entire abs, erector spinae, TVA, hips and pelvic stabilizers.
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The dumbbells weight introduces resistance in the full extension and retracting phase of the movement. Difficulty can be increased either using a heavier dumbbell or even adding plates on top of your body as core strengthens
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The ultimate progression of this movement is to be able to perform this from a standing position to a full rollout and retracting back to start. A whole long range of movement requiring good core strength, balance and flexibility
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Do not attempt this if you are a beginner or have any lower back injuries without proper supervision. Progress by mastering various variations of the planks first followed by varying the range of motion/inclination levels on the surface of the roll-out.
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Contact @aspirelife_wellness if you would like to take your performance or training to the next level or simply just want to become the ultimate version of yourself
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#aspirelife_wellness #UnderArmourMY #UnderArmourSEA #TeamONMY #Abs #Core #Training
Outifit @underarmourmy Perpetual range
rotational motion 在 余海峯 David . 物理喵 phycat Facebook 的精選貼文
【生活物理】Bernoulli's Principle vs. Gravity
這幾天很大風,強風從室外吹進室內時,會使向內打開的窗戶關上。這看似違反直覺的事實,是因為流體力學中的伯努利定律。伯努利定律說,流體流速越快,壓力就越低。由於室內空氣流速比室外吹進來的風速低,窗戶左邊的壓力就比面向外面的那邊高,因此壓力差造成令窗戶關上的轉矩。
用來控制窗簾的繩子剛好夠長,而且上面有個重物。所以我只要把繩掛在窗的把手上,當窗戶關上時,一部分轉動能就會轉化成重力勢能。所以重力便會施加一個反方向的轉矩於窗戶之上,最終使窗戶達到一個平衡的位置。
DSE 同學們注意了,我剛剛無意中幫大家貼了題,還附有 model answer。不過 rotational motion 似乎 out 了 syl.?