pp22 - PHYSICS: A World View Tuesday, 12 April 2005 READ Ch...

Info iconThis preview shows pages 1–13. Sign up to view the full content.

View Full Document Right Arrow Icon
PHYSICS: A World View Tuesday, 12 April 2005 READ Ch 20 (p 424 - 431) PRAC Ch 20: Q 9, 15, 21, 23; E 1 HW #22 Ch 20: Q 12, 16, 24; E 2 Th 14 Apr
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Charge! Charge!
Background image of page 2
Rubber Glass Rubber Glass Wood Wood repel repel attract attract attract attract attract attract nothing CHARGED NEUTRAL (negative) (positive)
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Rubber Glass Rubber Glass Wood Wood repel repel attract attract attract attract attract attract nothing (negative) (positive) What about magnets? Electrically Neutral!
Background image of page 4
BASIC MODEL
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Modern view charge comes in two flavors  (positive and negative) normally balanced (neutral) the amount of positive charge in  an object is fixed! imbalance causes “charge”
Background image of page 6
add -’ve (electrons) Neutral (equal positive and negative) + -
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
+ - negative
Background image of page 8
remove -’ve (electrons) Neutral (equal positive and negative) + -
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
+ - positive How many electrons is it? Typical: 1x10 8 !!
Background image of page 10
Problem: A bushel basket contains 50  apples.  How much of a bushel  is just one apple?
Background image of page 11

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
we measure in units called  Coulombs (C)
Background image of page 12
Image of page 13
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 42

pp22 - PHYSICS: A World View Tuesday, 12 April 2005 READ Ch...

This preview shows document pages 1 - 13. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online