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國三上理化Chap1_3 速率與速度 2024 1031

Authored by Sone Wang

Physics

8th Grade

國三上理化Chap1_3 速率與速度  2024 1031
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20 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

下列哪一物理量不具有方向性?

速率

速度

位移

2.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

下列何者並非速率及速度的單位?

cm/h

km/s

m/min

kg/s

3.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

+6m/s與-6m/s的意義為何?

速度相同,方向不同

速度不同,方向相同

速率相同,方向不同

速率不同,方向相同

4.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

小宇駕車在大塞車的高速公路上以等速率8m/s行進1分鐘,則其行進的距離為多少公尺?

8

48

240

480

5.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

由各x-t圖判斷,下列何者沿負方向運動?

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6.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

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附圖為一輛汽車在筆直公路上行駛時的v-t圖。在10秒至20秒期間,此汽車行駛的位移大小為多少公尺?

0

100

200

300

7.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

阿萬沿一直線街道以等速步行到商店去買鮮奶,再以原來的速率步行返回原處。如果出發的方向為正,則下列v-t圖何者最適合表達阿萬的運動情況?

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