
107-1國二理化二段習作練習
Quiz
•
Science
•
8th Grade
•
Medium
唐碩振 唐碩振
Used 16+ times
FREE Resource
60 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
一連續週期波的波形,如圖所示。波源經過1個振幅需1秒,則週期波在此介質中傳遞時的速率為多少公分/秒?
4.8
5.0
6.0
12.0
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列關於縱波性質的描述,何者錯誤?
又稱為疏密波
介質振動方向與波前進方向垂直
密部介質的密度大,疏部介質的密度小
相鄰兩疏部間的距離稱為縱波的波長
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
雷聲由甲地傳到乙地時,雷聲傳遞了什麼?
空氣
密度
能量
介質
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列何者為『非力學波』?
聲波
彈簧波
無線電波
水波
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如附圖所示,將電鈴放在裝有抽氣機的鐘罩內, 通電後發現鈴槌振動時可以聽見鈴聲,但隨著鐘罩內空氣漸漸被抽出後,鈴聲漸漸變小,最後聽不見鈴聲,其原因為何?
鈴聲全部被空氣機抽走了
缺乏空氣當作傳聲介質,所以鈴聲無法傳遞
空氣變少使振動頻率降低至人耳無法聽見
鈴聲被鐘罩完全吸收
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
一繩波之位置與波源距離關係如附圖,若波由P點至R點共歷時0.025秒,則下列何者錯誤?
波長20公分,振幅2公分
頻率為10 Hz
由P點至Q點共歷時0.15秒
傳播速率為300 cm/s
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
如附圖,以手握住細繩,上下振動,產生3/4個波時,花費了0.9秒,試問繩波的振動週期為何?
0.6秒
0.8秒
1秒
1.2秒
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