1. Name the type of electricity produced by friction.   frictional electricity   stagnant electricity   static electricity   Hint Half-n-half Clue   2. The charge on an electron is _______.   positive   negative   neutral   Half-n-half Clue   3. Lightning takes place _______ thunder.   before   when   after   Half-n-half Clue   4. Name the law: 'The sum of the total electrons in a system is a constant quantity'   Law of Conservation of Electric Charges   Law of Conservation of Matter   Law of Conservation of Momentum   Half-n-half Clue   5. _______ charges attract each other.   Similar   Like   Unlike   Half-n-half Clue   6. What does the symbol _______| |_______ represent?   resistor   electroscope   capacitor   Half-n-half Clue   7. Like charges _______ each other.   attract   touch   repel   Half-n-half Clue