Tuesday, December 28, 2010

Fourth Session

The Creator Club

Semester 1, Session 4

Title: Motors as generators

Summary: To begin to learn how motors function as generators, and how light bulbs and other resistance load devices work. To begin to gain a better understanding of electric current and how it relates to voltage and resistance.

In this session we will use our generator to make electricity to turn on light bulbs. We will study what is going on inside a light bulb.

We will study high resistance wire (for example, wire taken from an electric toaster) and from hand held hair dryers.

We will introduce the boys to CNC controls and how they are used to control motors, relays and automate machinery. We will demonstrate these controls in machines.

We will examine parts and components that are used in modern electrical equipment today. (connectors, ball bearings, ribbon cables, circuit boards, integrated circuits (chips).

This will be the last session to focus on the design and function of basic electromagnetic devices. In it we will have many discussions on related subjects:

Where and how we get electricity to our homes

Places where the many devices we have studied are employed.

Recent developments in these devices and the current technology.

CNC machines and automation.

Supplies needed:

1. Light bulbs and light bulb holders

2. Batteries

3. Hook up wire

4. The wooden project board with the motor that boys made mounted on it.

Equipment needed:

1. Analog volt meters

2. Digital volt meters

3. Alligator clips.

4. Hand tools

Equipment needed for illustration:

Servo motors, drives, relays, circuit breakers, fuses, connectors, computers, power supplies.

History: Discussion of how mankind has discovered what the Creator designed and allowed us to use our intelligence to figure out and design.

The laws and dependability of them to operate the same throughout history.

Electricity in our own bodies.

History: Thomas Edison, the home educated inventor who perfected the light bulb filament through his studies in materials and chemistry.

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