Are as delicious as your grandmother's cookies
The amount of charge each object has and the amount of energy the objects have.
The amount of charge on each object and the distance between the objects.
The distance between each object and the energy each object has.
The number of objects and the number of charges.
Because we want to know how things change over time.
Because we want to know why things are electrical.
Because we want to know if an object is charged or not.
Yes, because electroscopes behave differently.
Yes, because you can find out by checking the rim.
Sometimes, if you look closely.
No, because the electroscope is stupid.
No, because the electroscope behaves the same way
Glass, because it is slippery and smooth.
Glass, copper, and wood, because electrons cannot move freely inside them.
Glass, wood, and plastic, because electrons cannot move freely inside them.
Copper, because it is sparky.
Copper, glass, and aluminum, because their electrons can move freely.
Copper, mercury, and aluminum, because their electrons can move freely.
Glass, plastic, and cardboard because their electrons cannot move freely.
Static, unmoving particles.
Electric charge at rest; generally produced by friction or induction