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5下自然4-2

Authored by Anonymous Anonymous

Chemistry

5th Grade

Used 2+ times

5下自然4-2
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40 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

在地面滾動的足球,滾動一段時間後球會停止下來。

O
X

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

在地面滾動的足球,球會一直滾動不會停止下來。

O
X

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

在地面推動大龍球,手只要停止推動,一段時間後球就會停止。

O
X

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

通常摩擦力大,會比較省力;摩擦力小,會比較費力。

O
X

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

原子筆的握筆處有紋路,手比較容易握住,屬於增加摩擦力的應用。

O
X

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

買原子筆時要選擇握筆處有紋路的,這樣手比較容易握住筆身,比較好寫字,這屬於減少摩擦力的應用。

O
X

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

生活中,有些物品要有增加摩擦力的設計,有些物品要有減少摩擦力的設計。

O
X

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