Static Electricity Quiz
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5 questions, one answer each
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1. When two insulators are rubbed together, what actually moves between them?
- A. Protons
- B. Electrons
- C. Neutrons
- D. The whole atom
2. Two balloons are both negatively charged and brought close together. What happens?
- A. They attract
- B. They repel
- C. Nothing happens
- D. They both become neutral
3. Why does earthing a fuel tanker before fuelling reduce the risk of fire?
- A. It cools the fuel down
- B. It lets any static charge flow away, preventing a spark
- C. It removes oxygen from the air
- D. It increases the fuel's resistance
4. A charged rod is held near, but not touching, small pieces of neutral paper, which then jump towards it. What explains this?
- A. The paper becomes positively charged by conduction
- B. Electrostatic induction rearranges electrons in the paper, inducing an opposite surface charge
- C. The paper loses mass
- D. Gravity pulls the paper towards the rod
5. Which statement about the electric field between two parallel charged plates is correct?
- A. Field lines curve outward from the edges only
- B. Field lines are parallel, evenly spaced, and point from positive to negative plate
- C. Field lines point from negative to positive plate
- D. There is no field between parallel plates