Do Now - PowerPoint PPT Presentation

1 / 13
About This Presentation
Title:

Do Now

Description:

Do Now Why does it matter if the gas container is on the truck or the ground? Static Electricity Electric Charge Electric Charge: an electrical property of matter ... – PowerPoint PPT presentation

Number of Views:63
Avg rating:3.0/5.0
Slides: 14
Provided by: MikeF173
Category:
Tags: now

less

Transcript and Presenter's Notes

Title: Do Now


1
Do Now
  • Why does it matter if the gas container is on the
    truck or the ground?

2
Static Electricity
3
Electric Charge
  • Electric Charge an electrical property of
    matter that creates a force between objects
  • Charged versus Uncharged Objects

Negatively-Charged Possess more electrons than
protons
Uncharged Equal numbers of protons and electrons
Positively-Charged Possess more protons than
electrons
Only electrons move!!!
4
  • Human hands (usually too moist, though) Very
    positive
  • Rabbit Fur
  • Glass
  • Human hair
  • Nylon
  • Wool
  • Fur
  • Lead
  • Silk
  • Aluminum
  • Paper
  • Cotton
  • Steel Neutral
  • Wood
  • Amber
  • Hard rubber
  • Nickel, Copper
  • Brass, Silver
  • Gold, Platinum

5
  • Like charges repel, and opposite charges attract

6
Conductors
  • Materials that transfer charge easily. (allow
    electrons to flow through)
  • Metals
  • Aqueous solutions (water)
  • Graphite
  • Human body
  • Conductors do not hold charges well

7
Insulators
  • Materials that do not transfer charge easily.
  • Rubber
  • Glass
  • Wood
  • Dry air
  • Plastic
  • Paper/cardboard
  • Insulators do hold charge well.

8
Charging by friction
  • Pulling electrons off of another object
  • Sliding socks across rug
  • Rubbing balloon on hair
  • Basically, most types of friction

9
Charging by contact
  • A charged object touches another, transferring
    electrons

10
Charging by induction
  • Polarization of charges
  • Separating positive and negative charges within
    an object.

11
Check Your Understanding
What type(s) of charging does this guy
encounter???
12
(No Transcript)
13
Questions
  • Why is there more static electricity in the
    winter?
  • What is a semiconductor?
  • What is a superconductor?
  • Why dont we get seriously injured from the Van
    de Graaff generator?
Write a Comment
User Comments (0)
About PowerShow.com