Electricity

Electricity 

Static electricity - A build up of electrical charges on an object.

Current electricity - A flow of electric charge.

Electrical charge - Electrical particles that negatively charge.

Circuit - A system that provides a pathway for electrical current to flow through.

Cell - Supplies energy to circuit, by pushing current from positive to negative end.

Voltmeter- A device used to measure voltage, or electrical potential energy difference.

	Static electricity	Current electricity
What is it caused by?	two objects rubbing against each other with one supplying electrons to the other	Current electricity is powered from wires
Do the negative charges move?	yes negative charges can move freely	No negative charges don't move in current electricity
Does it power appliances?	Any source of electrical energy tries to maintain a continuous flow of charges between two points

Static electricity - 

Walking across a carpet

Touching a metal door handle

Lightening

Tramp

Rubbing hair against balloon

How does the van de graaff machine work?

It pulls electrons from earth, then moves them along a belt and stores them on a long sphere.

What was one of the experiments we did?

In class we had our very own van de graaff and a few of had the chance to go up to it and place our hands on the sphere, as we waited for it to power our hairs on our body stood up!

Why did this happen?

The electricity transfers the charge to our hairs, because they try to repel each other it cause our hair to stand up.