Results

• Predict how current will change when resistance of the circuit is fixed and voltage is varied.
• Predict how current will change when voltage of the circuit is fixed and resistance is varied.

Electrical devices convert the electrical energy carried by the charges into other types of energy such as heat, sound, and motion. Components in the appliance resist the flow of charge and are referred to as resistors. In this unit1 you will understand what resistance is, the factors that affect the resistance and the relationship between resistance and current.

Most of us use electricity every day in many different ways so it is important that we understand the dangers, or hazards, associated with electricity and we know how to use it safely.

By the end of this unit you will be able to:

• Use a ruler and protractor accurately
• Understand the SI system of measurement
• Convert between different units

Outcomes

By the end of this course you will:

• Be able to define capacity and volume
• Be familiar with the metric units of capacity
• Be able to convert from one unit of capacity to another

This lesson explores appropriate units for metric measurement.

An online activity which will test your understanding of metric measurements.

Outcomes

By the end of this course you will:

• Know what the 12 hour and 24 hour clocks are respectively
• Be able to convert times from the 12 to 24 hour clock and vice versa
• Be familiar with the units of time
• Learn how to convert one unit of time to another