Electrostatics Chapter 32. 32.1 Electrical forces and Charges Electrical forces are from _________ _______ attract & _____ repel.

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Presentation transcript:

Electrostatics Chapter 32

32.1 Electrical forces and Charges Electrical forces are from _________ _______ attract & _____ repel

32.1 Cont’ The charge of the particles are either ______ (protons) or ________ (electrons)

The atom Positive center Electrons are the same # Neutral Atom

32.3 Coulomb’s Law States that the relationship between _______ and ______will determine the force present. Unit for charge is the coulomb (C)

Coulombs' Law

Static Electrons ________ from one object to another. Remember opposites attract.

32.4 Conductors and Insulators What is a conductor? What are some examples of good conductors? What are some examples of good insulators?

Electric Current Chapter 34

Voltage Sources For charges to flow you need a ____________ and a _____ for the charge Can you name a voltage source? –battery, generator

Current vs. Voltage ________ or charge flows through a circuit ________ is the reason why it flows, it does not move _______ causes ________

Analogy for Voltage v. Current

34.4 Electric Resistance This is how well a ________ works. __________ is ability of a conductor to allow a charge to go through Also thickness or length influence _________

34.5 Ohm’s Law ____ is a unit for resistance (Ω) _______ is a unit for current (AMP)

34.6 Ohm’s Law and Electric Shock Your ability to get shocked depends on your condition to a certain extent.

Electrocuted! People die from 120V charges every year Electricity disrupts normal nerve function Also it damages tissues

Electric Shock cont’ How do birds stand on wires? What is the third prong on a plug for?

34.11 Electric Power The rate that electrical energy is converted to another form of energy. Electric power= ______ X _____ Or 1 Watt=1 amp X 1 volt

Types of electric current DC ____________ - current travels in ____________. Voltage source is a battery AC _______________ – current that repeatedly ______________, twice each cycle. Voltage source is a generator

Electric Circuits Chapter 35

35.2 Electric Circuits A ______ is a path that electricity can flow through There can be no gaps or ______

35.3 Series Circuits The current flows through a number of things in one path.

Series Circuits Requirements 1. Current has ____ path 2. There is ______ from each device on the line. 3. It abides by ______ Law

Series Requirements Cont’ 4. Each device abides by ______ Law 5. Total _______ in each device adds up to the total voltage of the ________.

What does a book series have in common with a series circuit?

Series Disadvantage One thing goes out…they all go out. Winter Lights

35.4 Parallel Circuits Each device on the circuit has its ________ and then they connect at two points

Parallel Circuit Requirement 1. each device connects to the ______ two points 2. Ohm’s law applies _________ to each branch

Parallel Requirements cont’ 3. total ________= sum of currents in parallel branches 4. as # of parallel _________ increase total current through battery increases.

35.5 Schematic Diagrams A way to write a circuit on paper.

Schematic Diagrams