10.4 Battery terminologu Flashcards
How do dry and wet cells(batteries) create electric current
the cells use chemical reactions that contiually separate charge to produce an electric current
Advantage of dry cell
Portable and small
- don’t leak
- lightweight
- safe to use
Disadvantage of dry cell
Battery dies once
chemical reaction is exhausted
wet cell advantage
Rechargable
wet cell disadvantage
Can spill contents, heavy
difference between a cell and a battery
A battery is made up of two or more cells.
Why does an electric current flow
Chemical reaction releases electrical charge
What is electrodes are dry cells usually made up of
Carbon and Zinc
Which substance makes up the electrolyte in a car battery?
Sulfuric acid is the electrolyte in a car battery.
Question
Why does a car battery need replacing sooner if it is not used very often?
The battery recharges only while the engine is running.
why are dry cells ‘dry’
they are not made up of liquids
Why do dry cells rely on chemical reactions
to generate
current to flow around the circuit
What are wet cells made up of
2 metal electrodes (eg. zinc, copper) placed into a liquid electrolyte(eg.sulfuric acid and water)
Example of wet cell battery
An automobile battery
example of a dry cell battery
AA-battery
