Electricity

• Science
• Middelbare school
• vwo
• Leerjaar 2

2VT - friday 13-10

• looking back: charges
• new concepts: shock, conductors, insulators

Which charged particles are responsible for electricity in copper wires?

1. electrons
2. protons
3. neutrons
4. atoms

A charged balloon sticks to the wall because...

1. the wall has an opposite charge
2. the wall is neutral
3. the wall has a regional opposite charge
4. the wall has a regional same charge

Is it true that lightning never strikes the same place twice?

1. Yes, the chance of that is absolutely zero
2. Not really, but the chance is very small
3. No, it's actually quite likely to happen
4. There is no way of predicting that

Why is it safe to sit in a car during a lightning storm?

1. The rubber tires insulate you from the ground
2. The car itself is an insulator
3. The lightning loses it's energy going into the car
4. The car conducts the lightning to the ground

Who will get a shock in this situation?

Conductors

Why can birds sit safely
on power lines?

insulators