Physics- The Cell

Question 1

Electric energy is produced

Answer 1

By chemical reactions

Question 2

Process

Answer 2

A cells stores chemical substances as potential energy.
When the cell is connected to an external circuit, these substances react with each other.
The reaction produces an electric charge with high potential energy.
As the charge moves from the cell into the conducting wires of the circuit, it has a high kinetic energy.
When the charge reaches the resistiros, they spend all the energy and electrons return to the cell.
When electrons return to the cell, they are recharged with high potential energy and the re-enter the external circuit.
Process repeated itself over and over again.

Question 3

Dry cells are

Answer 3

Easier to transport that wet class and they can be used in electronic equipment