Static Electricity

Review of an Atom What makes up an atom? What happens if I take away an electron?

Charges Which ones is which diagram?

Neutral Charge Negatively Charged Object Positively Charged Object

Static Electricity The imbalance of electrical charge on the

surface of an object Example making your hair positively charged,

and a balloon negatively charged as you rub the balloon on your head

Law of Electric Charges

States that Objects that have like charges repel each

other Objects that have opposite charges attract

each other

The strength of the Electrical Force is related to the distance between the two objects and the amount of charge on each object

Induced Charge Separation

When you bring a charged object towards a neutral object, it causes the electrons to shift position

The electrons move according to the Law of Electric Charges What does that mean?

Charging by Friction When two objects come into contact and

are rubbed against each other, one is more likely to attract the electrons than the other

If it had extra electrons it has what kind of charge?

Electrostatic Series As you move down the list thereis a higher tendency to gain electrons.

Charging by Conduction

When two objects with different amounts of electrical charge come into contact and the electrons move from one object to another

Electrons always move from the more negative object to the one that is less negative to evenly distribute the charge

Grounding Removing the electrical charge by

transferring electrons between a charged object and a large neutral object (eg. Earth) Electrons can transfer from the object to the

neutral object, in which case you can get a shock

Or electrons can travel from the neutral object to your charged object to balance out the positive charge.

https://www.youtube.com/watch?v=Z-77IzaXGcg Homework: Pg 471 #1-9 Pg 477 #1-8

Looking for more? Bill Nye Season 2 Episode 5 Static

Electricity