Multiple choice

When a body is negatively charged by friction, it means the body has

  1. lost some electrons

  2. lost some protons

  3. acquired excess of electrons

  4. acquired excess of protons

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Whenever two different materials rub against each other, it is likely that one will leave with more electrons than it started with. And since electrons are negatively charged, so when a body is negatively charged by friction, it means the body has acquired excess of electrons.