
Ljud
Authored by Robert Lindberg
Physics
4th - 6th Grade
Used 34+ times

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11 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
I vilken enhet mäter vi hur starkt ett ljud är?
Hertz
Hurts
Decibell
Decimeter
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Snabba vibrationer (svängningar) ger:
Ljusa toner
Huvudvärk
Mörka toner
Inga toner
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Ungefär när börjar ljud bli skadliga för hörseln?
75 dB
80 dB
85 dB
90 dB
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Långsamma vibrationer (svängningar) ger:
färgen blå
Ljusa toner
Mörka toner
dåliga toner
5.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Vad mäter vi i enheten decibel?
Hur snabbt ljudet färdas.
Hur stark ett ljud är.
Hur snabbt ett ljud svänger.
Hur ljud absorberas.
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Vilka frekvenser hör vi?
2.000 - 20.000 Hz
20 - 200.000 Hz
20 - 20.000 Hz
200 - 20.000 Hz
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Vad är ljudets hastighet i järn?
240 m/s
5000 m/s
340 m/s
1500 m/s
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