
LJud
Authored by Sanna Häggström
Physics
7th - 9th Grade
Used 58+ times

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11 questions
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1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Ljud är en
transversell vågrörelse
longitudinell vågrörelse
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
För att ljud ska kunna upp stå behövs
ljus
vakuum
något som svänger eller vibrerar
luft
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Ljudets hastighet i luft är
340 km/s
340 m/s
5000 km/s
5000 m/s
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Med våglängd menar man
avståndet mellan två vågtoppar
avståndet mellan tre vågdalar
avståndet mellan en vågtopp och en vågdal
5.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Ljudet rör sig
snabbare i ett tätare ämne än ett tunnare
snabbare i ett tunnare ämne än ett tätare
6.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Ljudstyrka anges i enheten
hertz
frekvens
decibel
m/s
7.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Smärtgränsen går vid
80 dB
90 dB
100 dB
120 dB
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