1. 甲、乙兩人騎腳踏車沿一筆直公路向東前進,5 秒內其位置和時間的關係記錄如表所示。則兩人分別做何種運動?

0804 石牌校國三理化小考

Quiz
•
Physics
•
9th Grade
•
Medium
Cindy Cindy
Used 2+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
甲作等速度運動,乙則否
乙作等速度運動,甲則否
兩人皆速度逐漸加快
兩人皆作等速度運動
2.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
2. 一人沿直線跑步,其速度與時間關係如圖所示,試問在哪一段時間內加速度方向與速度方向相反?
0~t1
t1~t2
t1~t3
t2~t3
3.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
3. 一車子沿直線自靜止做等加速度運動時,其位置與時間的關係圖為下列何者?
4.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
4. 如圖中,第 4 秒的加速度大小為何?
0 m/s2
0.75 m/s2
1 m/s2
1.5 m/s2
5.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
5. 某物體沿直線作等加速度運動,速度在 6 秒內由 30 m/s 增為 48 m/s,則上述時間內該物體運動了多少公尺?
180
234
240
268
6.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
6. 一車由靜止開始作等加速度運動,4 秒後之速度為 40 cm/s,則此車之加速度及 4 秒內所行之距離分別為何?
10 cm/s,80 cm
80 cm/s,10 cm
10 cm/s2,80 cm
80 cm/s2,10 cm
7.
MULTIPLE CHOICE QUESTION
10 mins • 1 pt
7. 如圖是沿直線運動物體的速度(v)與時間(t)關係圖,則哪一時段內物體的速率漸減?
0~t2
t2~t4
0~t1及t2~t3
t1~t2及t3~t4
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