Series circut

Series circut

>Series circut has only ONE patch for current to flow

>Curent is the same at any point

>Total resistance for two resistors in series.

Disadvantages : if one light bulb cannot work, current stop flowing.

Parallel Circut

Parallel circuit has more than one path for current to flow.

current from battery = sum of current in separate paths.

Voltages are equal across the branches.

Advantages : current become bigger
: if one lght cannot works other light bulb still light on.

Potential DIfference

what do you remeber on curent
> define : Electric is the rate of flow of electric charges
> Short From : I
> SI unit : A (ampere)
> instrument : Ammeter

In an electric circuit , the energy for the electric charges to move around a circuit is given by a electrical energy source such as the battery of the cell.

whe there is a potential difference across a conductor.

SI unit: volt (V)

Potential DIfference

what do you

Chapter 8- Heat Transfer And its Consequences

1. Heat travels fom a place of higher temperature to a place of lower temperature.

2. The 3 process of thermal energy transfer are:
- Conduction
- Convection
- Readiation

3. Conduction is the transfer of heat energy through a material from the hot to the cold regions without any visible movement or flow of the material.

4. Substanes which conduct heat rapidly are called heat condutors.

Changes Of State

Melting

Meaning > change from SOLID to LIQUID without a change in temperature

Boiling

Meaning > change of state from LIQUID to GAS without a change of temperature

Freezing

Meaning > change of state LIQUID to SOILD without a change in temperature.




Condensation

Meaning > change of state of state of GAS to LIQULD without a change in temperature

Look!

good website for Celsius and Fahrenheit