Fys9 Ellära

Fys9 Ellära

9th Grade

11 Qs

quiz-placeholder

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Fys9 Ellära

Fys9 Ellära

Assessment

Quiz

Physics

9th Grade

Practice Problem

Hard

Created by

Lars Wingård

Used 6+ times

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11 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

En glödlampa kopplas till ett batteri med spänningen 4,5V. Hur stor är elströmmen genom lampan då dess resistans är 15Ω?

I=67,5 A

I=0,3 A

I=3,33 A

I=30 mA

I=333 mA

2.

FILL IN THE BLANK QUESTION

3 mins • 1 pt

Media Image

Beräkna elströmmen i enheten mA.

3.

OPEN ENDED QUESTION

3 mins • 1 pt

Varför parallellkopplas batterier? Ge EN förklarning. Två förklarningar behövs inte.

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4.

FILL IN THE BLANK QUESTION

3 mins • 1 pt

Media Image

Hur stor är spänningen över lampan?

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Vilken sorts koppling har vi använd på batterierna?

Parallellkoppling

Seriekoppling

Sidokoppling

Elektrisk koppling

Parallellserie

6.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Media Image

Två elmotorar har resistansen 50 Ω. De kopplas parallellt. Vad är motorsystemets totalresistans?

50 Ω

100 Ω

25 Ω

500 mΩ

5 Ω

7.

FILL IN THE BLANK QUESTION

2 mins • 1 pt

Media Image

Elströmmen vattenkokaren är 4 A. Vad är vattenkokarens effekt?

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