By: Briana Henry2/18/2015Physics

“What Do You Want To Know About Electricity?

Let’s Talk!”

“Well, Why is Electricity is Important?” (Intro)

• Electricity is important because without it life as we know it would be uncomfortable. We wouldn’t have a lot of the technology wehave now, such as cell phones, computers, air conditioners, stoves, and many other gadgets.

Imagine life without your cell phone, computers, or even light. Does that seem like a comfortable life? No? Well it gets worse. Imagine life with no refrigerators, water heaters, or television. How does life seem now? Okay, this proves my point that electricity is very important because without electricity, that is exactly how life would be.

“Now Ohm’s Law, You know, the basics!”

• The three components that make up Ohm’s Law are: the Voltage, measured in volts, Current, measured in amps, and the Resistance, measured in ohms.

• The way that Ohm’s Law works is the voltage(V) equals the product of the electrical current(I) and the resistance(R) working in an electrical current. V= I R

“Ohm’s Law is like a… Waterfall!”

Voltage • The source of the

waterfall represents the voltage. The force of the waterfall is gravity because that’s the element that is pushing the water down just like how the voltage pushes the current through the circuit.

“Ohm’s Law is like a… Waterfall!”

Resistance• Just like the rocks in

the water, the resistors in the circuit impede the flow of the current and provide obstacles for the current to go through.

“Ohm’s Law is like a… Waterfall!”

Current • Just like the current

in the circuit, the water in the waterfall flows through and the cracks and crevices all the way a desired destination.

“Let’s get technical! How do charges move? ”

• Conductors are used in electricity to allow charges move easily.

• For instance, if you are working on an electric track and you need to connect two pieces of materials that are electrically charged, you could use a metal as a conductor.

Conductors

Conductors Insulators

Electric Charge

“Let’s get technical! How do charges move? ”

Insulators • Insulators are materials that do not allow electric charge to flow through freely, such as rubber, glass, and wood.

• An electrician has to use an insulator to protect himself against electric charges that will try to flow to his body, and makes electrical wires safe to touch.

Conductors Insulators

Electric Charge

“Shhh! The charges are now at rest.”

• Electrostatics is the study of electric charges at rest.

• In the19th century when physicist classified forces in 3 groups: Gravitational, electric, and magnetic

• In 20th century, however, physicist added two more forces which are strong and weak forces, but then found links to narrow it back down to only two: gravitational and electromagnetic.

“Let’s Talk About Relationships…”

Electrons(-)• Negative charge• have the

smallest negative charge

Neutron• Neutral charge

Protons(+)• Positive charge • Carry the

smallest positive charge

• About 2,000 times more the size of electrons

Opposites Attract

Like Charges Repel

Protons, which have a positive charge and electrons, which have a negative charge attract together

because… well, because opposites attract of course.

“Relation, Formation”

• All of the charges arrange themselves to form an atom.

• The proton resides in the nucleus with the neutron. The electron resides outside the nucleus to maintain balance between the positive and negative charges.

• The atom resembles a familiar form, Saturn’s rings.

The battery represents the voltage, the lamps represents the resistance, and the wires represent the current

flow. The switch is used to turn on and off the light and the electric circuit.

Parallel Circuit Series Circuit

Many paths for electricity 1 path for electricity

If one light goes out, the other lights

can still work.

If one light goes out, the other lights

will go out too.

Best example of a parallel circuit is

track lightings.

Best example of a series circuit is

Christmas lights.

“Circular, Circuit, Circus”

In Conclusion…• From how it began to what times of

charges cause it to the types of circuits that are used in our everyday buildings, we can agree that electricity is very important and has many intricate details.

• It’s important to understand the inner workings of electricity because as society progresses one thing that people will always need is electricity and jobs that deal with electricity will flourish.

• Understanding electricity is important because someone will need to invent the next best thing and it will be the person who knows electricity and how to maneuver and manipulate it to invent something that will change society.