啟華在直路上跑步,下圖是他的速度─時間關係線圖。求他在0 - 6 s這段時間內的移動距離。
Physics - S4 - Ch 2 Motion 2 - Revision

Quiz
•
Physics
•
10th Grade
•
Hard
Pui Fong Leung
Used 5+ times
FREE Resource
9 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
0
6 m
12 m
18 m
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
小巴以36 km h–1沿直路行駛。司機看見前面的紅燈就立即煞車,小巴均勻地減速,並在行駛了15 m後停下。小巴的減速度是多少?
0.46 m s–2
2.40 m s–2
3.33 m s–2
43.2 m s–2
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
警察在直路上追捕小偷。他由靜止開始,以1.5 m s–2的加速度跑了6 s。警察共跑了多遠?
9 m
27 m
40.5 m
54 m
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
下圖為汽車沿直路行駛時的v-t線圖。
ABCD的面積表示哪個物理量?
平均速度
平均速率
加速度
位移
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
汽水罐由靜止開始從離地7 m的位置跌下。它在2 s後的位移是多少?
取g = 9.81 m s-2。
4.47 m
7 m
19.6 m
32.6 m
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
皮球在時間t = 0由靜止開始從高處跌下,在地面反彈數次後停下。下圖顯示皮球的v-t線圖。空氣阻力可略去不計。
下列有關這v-t線圖的敘述,哪項是正確的?
(1) 取向下為正。
(2) P點代表皮球首次反彈後到達最高點的一刻。
(3) Q點代表皮球撞擊地面的一刻。
只有 (1)
只有 (1) 和 (3)
只有 (2) 和 (3)
(1)、(2) 和 (3)
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
物體沿直線移動,下圖是它的位移─時間關係線圖。求物體在0-10 s期間的平均速度。
1.5 m s–1
2 m s–1
2.5 m s–1
11 m s–1
8.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
物體從靜止開始以1 m s-2勻加速,下列哪幅線圖正確顯示物體的位移s怎樣隨時間的平方t 2變化?
A
B
C
D
9.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
如下圖所示,小明站在懸崖邊,以15 m s–1的速度垂直向上拋起一塊石頭,石塊上升至最高點後下落,最後掉入海中。
假設小明離海面50 m,求石塊在空中逗留了多長時間。取g = 9.81 m s2。
2.01 s
3.33 s
5.07 s
6.72 s
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