Test Fys8 Arbete - lägesenergi - effekt
Quiz
•
Physics
•
7th Grade
•
Practice Problem
•
Medium
Lars Wingård
Used 22+ times
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
En hiss lyfter Anders 6,5 meter uppåt. Anders har massan 82 kg. Hur mycket lägesenergi får Anders?
533 J
5 223 J
54 J
124 J
52 230 J
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Det behövs en kraft på 100 N för att dra en pulka en sträcka på 400 meter. Hur stort arbete utför dragkraften?
40 kJ
4 J
329 kJ
2,45 J
3 920 J
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
En tyngdlyftare lyfter tyngden 833 N till 2,3 m höjd. Vilken är vikternas lägesenergi?
1,9 kJ
196 J
833 J
22,5 J
362 J
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Personen har massan 55 kg. Hur stor är lägesenergin?
110 kJ
165 kJ
1,1 kJ
1,6 kJ
330 kJ
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Du träcker en pulka i snön, och använder energin 60 000 J. Arbetet tar 30 sekunder. Med vilken effekt arbetar du?
2,0 kW
1 800 kW
17 640 kW
19,6 kW
204 W
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Lasse springer upp en trappa, och kommer 2,0 meter över marken. Det tar 5,0 sekunder. Med hur stor effekt springer Lasses, då hans massa är 60 kg?
600 W
5880 W
235 W
150 W
294 W
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Lisa lyfter upp sin katt, som låg och sov på golvet. Hur stort arbete utförde hon, då kattens tyngd var 41 N och den lyftes upp till 1,7 m höjd?
70 J
683 J
403 J
24 J
0,41 J
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