Curriculum
Course: Science — First Preparatory
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Curriculum

Science — First Preparatory

Unit 1: Matter

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Unit 2: Forces

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Unit 3: Life

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Unit 4: Earth and Space

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Quiz

Electric Forces — Lesson quiz

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  • Questions count: 5
  • Passing grade: 60%
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1.
What happens when two objects with like charges are brought close together?
They repel each other
They attract each other
They cancel each other's charge
Nothing happens between them
2.
Which particles move from one object to another during charging by rubbing?
Protons
Electrons
Neutrons
Whole atoms
3.
An object loses 2 × 10¹⁰ electrons. Calculate its total charge.
−3.2 × 10⁻⁹ C, negative
+3.2 × 10⁻¹⁰ C, positive
+3.2 × 10⁻⁹ C, positive
+1.6 × 10⁻⁹ C, positive
4.
An object gains 5 × 10¹⁰ electrons. Calculate its total charge and state its type.
+8 × 10⁻⁹ C, positive
−8 × 10⁻¹⁰ C, negative
−1.6 × 10⁻⁹ C, negative
−8 × 10⁻⁹ C, negative
5.
Which of these is an insulator: copper or plastic?
Plastic
Copper
Both are good conductors
Both are insulators
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