The Nature of Electricity: Static Electricity

The video tutorial explains the concept of electric charges and their role in static electricity. It begins by discussing stable atoms, where protons and electrons balance each other, resulting in a neutral charge. The tutorial then introduces ions, which are atoms that have gained or lost electrons, leading to a charge imbalance. An example of static electricity is demonstrated using a balloon, which becomes negatively charged when rubbed against a student's head. This charge causes the balloon to stick to a wall due to the attraction between opposite charges. The video concludes by explaining that static electricity involves the buildup of non-moving charges.

What maintains the neutral charge in a stable atom?

• The balance between protons and neutrons

• The balance between protons and electrons

• The balance between protons and ions

• The balance between electrons and neutrons

What is an ion?

• An atom that has gained or lost neutrons

• An atom that has gained or lost electrons

• An atom that has gained or lost energy

• An atom that has gained or lost protons

How does a nitrogen atom become negatively charged?

• By losing 3 electrons

• By gaining 3 protons

• By gaining 3 electrons

• By losing 3 protons

What happens to a balloon when it is rubbed against a student's head?

• It loses electrons and becomes positively charged

• It gains electrons and becomes negatively charged

• It gains protons and becomes positively charged

• It loses protons and becomes negatively charged

What causes a balloon to stick to a wall after being charged?

• The repulsion between negatively charged atoms in the balloon and positively charged atoms in the wall

• The attraction between positively charged atoms in the balloon and negatively charged atoms in the wall

• The attraction between negatively charged atoms in the balloon and positively charged atoms in the wall

• The repulsion between positively charged atoms in the balloon and negatively charged atoms in the wall