
2021/06/01test

Quiz
•
Physics
•
10th Grade
•
Hard
栢川 林
Used 5+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
在水平地面上有一球落地反彈又落地,週而復始。前後兩次反彈又落地的過程之最大高度比為1:0.64。假設空氣阻力可以忽略,則下列有關前後兩次反彈又落地過程的敘述,何者正確?
最大動能的比例為1:0.8
「最大位能與最小位能」的比例為1:0.8
著地時力學能的比例為1:0.8
最大速度量值的比例為1:0.64
相鄰兩次從最高點落地的時間比為1:0.8
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如圖所示,在離地高度h處,將一球分別以相同速率v,沿不同方向A、B、C、D拋出,若不計空氣阻力,則何者著地瞬間的動能最大?
A
B
C
D
一樣大
3.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
在某高度處以相同速率將球向三個不同方向拋出,經不同時間後,球落於相同高度的水平面上,則在整個飛行過程中,重力作功的量值由大到小依序為何?
甲 > 乙 > 丙
乙 > 丙 > 甲
丙 > 甲 > 乙
乙 > 甲 = 丙
甲 = 乙 = 丙
4.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
某人施一水平方向的力以推動質量為50公斤的物體,沿水平方向等速前進了10公尺,如果地面與物體之間的摩擦力為5牛頓,則此人對物體作功若干焦耳?
0.5
5
50
250
500
5.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
芬蘭聖誕老人村是傳說中聖誕老人的故鄉。當村中的雪花正以等速下落時(不熔化),有關雪花的敘述,下列何者正確?
力學能守恆,動能亦守恆
力學能守恆,動能不守恆
力學能不守恆,但動能守恆
力學能不守恆,動能亦不守恆
重力位能和動能的總和為定值
6.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
如圖所示,一物塊以速度30公尺/秒在水平地面上滑動160公尺後,速度變為10公尺/秒,試問讓此物塊繼續滑動下去,最後還可以行走多少公尺的距離?
80
40
20
10
5
7.
MULTIPLE CHOICE QUESTION
15 mins • 1 pt
健身教練將質量20公斤的槓鈴由地面等速緩慢提至50公分的高度,再沿水平面緩慢等速行走2公尺後,最後再將槓鈴等速緩慢放下至地面,則健身教練對槓鈴總共作了多少焦耳的功?(設重力加速度為10公尺/秒2)
0
10
100
200
400
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