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108國中自然2上B3_3-2

Authored by Yu Liu

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108國中自然2上B3_3-2
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10 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

如附圖所示,週期波的週期為4秒,則A點的波動向右傳到B點需要幾秒?

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8

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

小蛋在一彈簧下方放了一把尺,振動彈簧產生縱波,以相機拍照得到如附圖之照片,請估計該彈簧波的波長為多少公分?

1
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4

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

琦貞利用電動振動器對繩子每秒振盪4次以產生繩波,則繩波上任一點每秒鐘左右振動幾次?

1
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4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

下列關於波的敘述,何者錯誤?

橫波又稱為高低波、縱波又稱為疏密波
兩個波谷間的距離稱為振幅
同一介質中的波,其波速必定相同
頻率與週期互為倒數

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image

某介質中,一連續週期波的波形如附圖所示,假設波源每秒可進行4次的完整振動,則該週期波的波速為多少 m/s?

0.15 m/s
2.4 m/s
2.8 m/s
3.6 m/s

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

一波源每秒點擊水面10次,測得此水波波長為30公分,且水深各處均同。今將頻率改為每秒30次,則波長變為多少?

30公分
20公分
10公分
5公分

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

某一力學波的頻率為X,週期為Y,則X與Y的關係應為下列何者?

X+Y=1
X×Y=1
X=2Y
X=Y

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