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G4-1-CH4

Authored by 縣立梧鳳國小黃小玲 縣立梧鳳國小黃小玲

Science

1st - 5th Grade

G4-1-CH4
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5 questions

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1.

MULTIPLE CHOICE QUESTION

10 sec • 2 pts

下列哪一項不是光在生活中的應用?

救護車警示燈

腳踏車車鈴

聖誕燈飾

行人穿越號誌

2.

MULTIPLE CHOICE QUESTION

10 sec • 2 pts

下列物品中,哪一個可以用來取代自製開關中的迴紋針?

橡皮擦

塑膠尺

硬幣

木板

3.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

小文接上燈泡進行電路實驗,卻發現燈泡沒有發亮,原因不可能是下列哪一項?

電線的顏色不對

燈泡壞了

電池沒電

電線接觸不良

4.

MULTIPLE CHOICE QUESTION

10 sec • 2 pts

下列關於電線的描述,哪一個是正確的?

電線裡面是塑膠,外面是銅

電線的顏色會影響電路是否能形成通路

電線太長,會使電路中斷

電線外層需要包覆著電的不良導體,避免觸電

5.

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

發光二極體是現代許多電器都會使用的電子元件,請問下列何者是它的特點呢?

不需要電池

省電

壽命很短

耗電量大

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