
國三上理化Chap3_2 動能、位能與能量守恆 2024 1102
Authored by Sone Wang
Physics
9th Grade

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10 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 10 pts
關於動能的敘述,下列何者正確?
同一物體的運動速率越快,所具有的動能越大
同一物體所具有的動能越大,表示運動速率越慢
相同速率下,質量越大的物體,動能會越小
物體所具有的動能大小,與質量和速率均無關
2.
DROPDOWN QUESTION
2 mins • 10 pts
將甲、乙、丙三個相同彈簧的一端固定、另一端掛上相同之木塊,置於水平桌面上,分別以手施力使彈簧產生形變-甲彈簧:壓縮量為2公分,乙彈簧:伸長量為2公分,丙彈簧:伸長量為5公分,試回答下列問題(彈簧均未超過彈性限度):
(1)三組彈簧所儲存的能量大小比較為何? (a)
3.
FILL IN THE BLANK QUESTION
2 mins • 10 pts
將甲、乙、丙三個相同彈簧的一端固定、另一端掛上相同之木塊,置於水平桌面上,分別以手施力使彈簧產生形變-甲彈簧:壓縮量為2公分,乙彈簧:伸長量為2公分,丙彈簧:伸長量為5公分,試回答下列問題(彈簧均未超過彈性限度):
(2)鬆手的瞬間,哪一個木塊具有較大的加速度?
(填入 甲 或 乙 或 丙)
4.
MULTIPLE SELECT QUESTION
2 mins • 10 pts
如附圖所示,有一小球沿光滑軌道由A點自由滾下,若不計任何阻力,試回答下列問題:
(1)在運動的過程中,小球在下列何處的動能最大?
A
B
C
D
E
5.
DROPDOWN QUESTION
2 mins • 10 pts
如附圖所示,有一小球沿光滑軌道由A點自由滾下,若不計任何阻力,試回答下列問題:
(2)在運動的過程中,小球在下列何處的重力位能最大? (a)
6.
MULTIPLE CHOICE QUESTION
2 mins • 10 pts
如附圖所示,有一小球沿光滑軌道由A點自由滾下,若不計任何阻力,試回答下列問題:
(3)在運動的過程中,小球是否可達到E點?
可以
不可以
視小球重量而定
7.
FILL IN THE BLANK QUESTION
2 mins • 10 pts
附圖為一垂直懸掛的單擺,擺錘由A點靜止釋放,Q為一固定之細棒,擋住擺繩的運動,假設整個擺動過程無能量的損失。試根據所提供的資料,回答下列問題:
(1)A、B、C、D四點中,哪一點的重力位能最大?
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