1. Current Electricity
Unlike static electricity, in current electricity there is a continuous flow of electrons along a path.
This passage of electric current through a material is referred to as conduction or simply electricity.

2. For current electricity to exist there must be:
1) A source of electrical charges.
2) A conducting path.
3) A device to use the electrical charges referred to as the “load”.

3. In what types of situations would a current detector be useful?
A person can use a simple device called a current detector to determine whether or not current electricity is running through a device.
The shortcoming of such a device is that it is not able to measure the amount of current present.
In what types of situations would a current detector be useful?

5. Measuring Current Current in a circuit is measured using an ammeter.
The unit of electric current is the ampere (A).
An ampere is a measure of the amount of charge moving past a point in the circuit every second.
Current flow = amps

6. What is Voltage?
Voltage is the difference in electrical energy between two points in a circuit.
Voltage is always measured between two locations in a circuit.
A voltmeter is used to measure voltage
Voltage is sometimes refered to as the “pressure” or force.
Voltage is also sometimes referred to as potential difference.

8. Design Challenge #1 -
Create a Circuit