Curriculum
Course: HIA International — Grade 8
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Curriculum

HIA International — Grade 8

Unit 1: Photosynthesis and the carbon cycle

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Unit 2: Properties of materials

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Unit 3: Forces and energy

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Unit 4: Maintaining life

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Unit 5: Reactivity

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Unit 6: Sound and space

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Unit 7: Genes and inheritance

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Unit 8: Rates of reaction

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Unit 9: Electricity

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Quiz

9.3 Resistance — Visual & Photo Quiz

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  • Questions count: 1
  • Passing grade: B+
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1.
Look at the circuit with a variable resistor (rheostat) adjusting the current through a lamp. What is the definition of electrical resistance, and what is its unit?
Dr Dabour Hub Academy - figure 1
Resistance is the opposition to the flow of electric charge (R = V ÷ I), measured in ohms (Ω)
Resistance is the total charge stored in a battery, measured in coulombs
Resistance is the speed of light in wire, measured in m/s
Resistance is the brightness of a bulb, measured in lumens
Part of Unit 9: Electricity — see every lesson and quiz in this unit.
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