Electricity Flashcards
How is electricity made
Made when electrons move from one place to another. ( electricity is invisible because electrons are too small to see)
What is electricity
Electricity is a type of energy. You cannot touch it, hear it, smell it or see it. Although, you can see the things that use it.
How many electrons can fit I to the tip of a ballpoint pen
One billion
What are the 2 types of electricity
- Static E.
2. Current E.
How does static electricity work
The friction made when two objects are rubbed together creates static E.
What are three ways to tell if static E. Is present
- It makes sparks and can shock you
- It makes a crackling sound
- It causes things to stick together
What are the three everyday examples of where static E. occurs
- Dragging rubber-soled shoes can take electrons from the carpet creating a shock
- Clothing rubbing together in the dryer taking electrons, causing static cling (clothes sticking together)
- Electrons collect on TV producing static electricity
What is the example (parts 1-4)
Rubbing the balloon steals electrons from your hair. The balloon has extra electrons and has a negative charge. Your hair has less electrons and has a positive charge. Opposites attract so the balloon will stick to something positive. If there are enough electrons, the will try and jump to the wall and make a spark
What is the most important thing about the atom
It is the building block of matter
What are the most important things about the electron
- Only particle that moves
- Found in all atoms
- Negative charge
What are the most important things about the nucleas
- Control centre of the cell
- Organizes long DNW molecules
- Cell would die without it