Electricity
Uploaded by
sbellum375Electricity
Uploaded by
sbellum375Electricity
lightning
intro
What do you think of the word electricity ?do you think of light bulbs,or
lightning.Well, in this presentation I will talk about static electricity,fossil
fuels,energy sources,energy development,energy circuit,safety and fun
facts.So let's get started!
Static electricity
Static electricity is when tiny electrons are pulled from 1 surface to another.This can
happen when you take off a sweater to fast.The difference in electrical charge can cause a
spark when you touch a metal object.Lightning is a bigger version of static electricity.It
happens when masses of air rub against rain clouds.
Insulators and conductors carry electrons.Insulators don’t let electron through them
easily.But conductors are the exact opposite, they let electrons easily.Some good conductor
are copper,silver,aluminum,gold,steel,and brass. Some good insulator are
plastic,ceramics,rubber,and wood.That is all about static electricity
Fossil fuels
What are fossil fuels?Well if you haven’t already guessed by the name by the name.They
are fuels made by the earth from the remains of animals and plants.For example crude
oil is a fossil fuel.We use it to power our cars.But there is a bad side to Crude oil, it is
non-reusable,meaning you can’t reuse it. And it releases greenhouse gas:a substance
that affects the temperature making it to hot and is a global threat.Now day,we use
wind power and water power because it is better for planet earth.
Energy development
Energy development is the field of activities focused on obtaining sources of energy
from natural resources. These activities include production of conventional, alternative
and renewable sources of energy, and for the recovery and reuse of energy that would
otherwise be wasted.
Energy Circuit
An electric circuit is a complete loop where electricity is flowing to power components in
that loop. And electricity is the continuous flow of electrons.Electric circuits also involve
energy transfers. Chemical energy in the battery is changed into electrical potential
energy on the two sides of the battery.
To make an electric circuit,you need 3 main parts.You need a source like a
battery.Something to pass energy to,like a light bulb.Last,but not least something to
make the loop,like a wire.1 wire carries positive energy,while the other carries
negative.That is all about energy circuits.
Electricity Safety
Electrical hazards can cause burns, shocks and electrocution (death). Assume that all
overhead wires are energized at lethal voltages. Never assume that a wire is safe to
touch even if it is down or appears to be insulated. Never touch a fallen overhead power
line.
Fun facts
● Electricity travels at the speed of light, about 300,000 kilometres per second.
● A spark of static electricity can measure up to 3,000 volts.
● The average taser emits 50,000 volts.
● A bolt of lightning can measure up to three million (3,000,000) volts (and lasts
less than one second).