Verified Answers, Brand New
1. What is electricity?: A type of energy that can build up in one place or flow from one
place to another
2. What are the two types of electricity?: Static electricity and Current electricity
3. Static electricity occurs when electricity does what?: Gathers in one place
4. Current electricity occurs when electricity does what?: Moves from one place to
another
5. Static electricity often happens when you what?: Rub things together
6. How does walking across a rug produce an electric shock?: Your body
gradually builds up an electric charge, which is the tingling you can sense
7. A natural example of Static Electricity: Lightning
8. What causes a bolt of lightning?: As rain clouds move through the sky, they rub
against the air around them. This makes them build up a huge electric charge.
Eventually, when the charge is big enough, it leaps to Earth as a bolt of lightning.
9. Electricity is caused by what tiny particles that "orbit" around?: Electrons
10. Electricity is caused by electrons, tiny particles that "orbit" around what?: The
edges of atoms
11. Electrons have a what charge?: Negative
12. Why don't atoms typically have an overall electrical charge?: An atom normally
has an equal number of electrons and protons (positively charged particles in its
nucleus or center)
13. Why would a balloon stick to you after it is rubbed against wool?: As it rubs
against the wool in your pullover, some of the electrons in the rubber molecules are
knocked free and gather on your body. This leaves the balloon with slightly too few
electrons. Since electrons are negatively charged, having too few electrons makes the
balloon slightly positively charged. Your pullover meanwhile gains these extra
electrons and becomes negatively charged. Your pullover is negatively charged, and
the balloon is positively charged. Opposite charges attract, so your pullover sticks to
the balloon.
14. What causes an electric current?: When electrons move, they carry electrical
energy from one place to another
15. Electricity stored in a battery is an example of what energy?: Electrical potential
energy
16. What causes a battery to "die" ("run flat")?: Over time, the energy stored in the
battery is gradually turned into light (and heat) in the lamp.