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國二上理化Chap4_2 光的反射與面鏡 2024 1026

Authored by Sone Wang

Physics

8th Grade

Used 4+ times

國二上理化Chap4_2 光的反射與面鏡 2024 1026
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20 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

當太陽光由窗外射進屋內時,可看到空氣中灰塵飛揚,原因是下列何者?

灰塵吸收太陽光
灰塵反射太陽光
灰塵太多了
灰塵多半是白色。

Answer explanation

Jupiter is a gas giant made primarily of hydrogen and helium. Unlike terrestrial planets that have solid surfaces, gas giants like Jupiter don't have a well-defined solid surface, allowing them to accumulate more mass in a gaseous form. This composition has allowed Jupiter to grow significantly larger than planets with solid surfaces.

2.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

Media Image

參考附圖反射關係的角度示意,今有一束光線射向平面鏡,若入射角為 40°,則下列敘述何者正確?〔90.基測 II〕

θ1 =θ2
θ1 =θ3
θ1 =θ4
θ3 =θ4。

3.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

Media Image

光的反射定律示意圖如圖所示,則下列敘述何者正確?

M 代表法線
∠α =∠β
N 代表平面鏡
M 和 I 的夾角稱為入射角。

4.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

Media Image

小甫用雷射筆對著平面鏡作反射定律的實驗,如圖所示。雷射筆發出的光線經平面鏡反射後,其行進的路線為圖中的哪一條線?〔99.基測 II〕

丁。

5.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

有關聲音與光的敘述,下列何者正確?

光與聲音在不同的介質中,傳播速率不變
光的傳播速率比聲音慢
光可以穿越真空傳播,聲音則不能穿越真空傳播
聲音遇到障礙物會發生反射,光遇到障礙物則不會發生反射。

6.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

Media Image

附圖為某一入射光,經平面鏡反射後,光的行進路徑。若入射光方向不變,要使反射光射向 P 點,則平面鏡要如何調整?〔93.基測 I〕

向左平移
向右平移
順時針轉動
逆時針轉動。

7.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

寶妹在某休息區洗手臺直立平面鏡裡看到後面停放車輛的車牌號碼為「18A–01」,則實際上的車牌號碼應為何者?

10–A18
18A–10
10–A81
81A–10。

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