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五年級自然測驗

Authored by 陳 銥諱

Science

KG

Used 36+ times

五年級自然測驗
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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

生活中常用的乾電池大多是多少伏特?

0.5V

1.5V

2.5V

3.5V

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

請問化學之父波以耳,是從什麼植物當中提取浸液而製成石蕊試紙呢?

紫羅蘭的花

石蕊地衣

紅玫瑰花瓣

紫葡萄外皮

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

地球對物體的吸引力稱為「浮力」。

O

X

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

盒子和桌面之間存在有摩擦力,要拉動盒子必須先克服摩擦力。

O

X

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下列哪項不是減少摩擦力的應用?

鏈條上加潤滑油

鞋底的紋路

滑板的輪子

椅子的輪子

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

強酸或強鹼具有腐蝕性,如果有身體部位不小心接觸到,應立即以大量的牛奶沖洗。

O

X

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

發光二極體的長腳要接到電池的哪一端?

正極

負極

側邊

正極、負極都可以

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