Electricity.

Slides:



Advertisements
Similar presentations
Electric Charge Chapter Examples of Electric Charge Rubbing a plastic comb through your hair. Rubbing a balloon on your hairs. Rubbing your shoes.
Advertisements

ELECTRON THEORY. We will start our discussion of electron theory with a few definitions. is anything that has mass and takes up space. Matter- The basic.
STATIC ELECTRICITY I: Particle Model of Electricity
Electric Charge and Static Electricity
Electricity HOW WOULD YOUR LIFE BE DIFFERENT WITH NO ELECTRICITY?
Electric charge is a fundamental property of matter, like mass. Electric charge is a fundamental property of matter, like mass. Objects are either positive,
Electrostatics.
Electric Charge – Chapter 16 Section 1 Where do you see electricity around you? What is an Electric Charge? How does something become electrically charged?
Ch Electricity I. Electric Charge  Atoms and Charge  Conductors  Insulators  Static Electricity  Electric Discharge.
Introduction to Electricity 7SCIENCE. Electricity brainstorm.
Charges and How They Behave
Question Time Have you ever walked across a rug, reached a doorknob and…ZAP!!!! You get a static shock. What about coming inside from the cold and taking.
Electric Charge & Force Static Electricity. Electric Charge An electrical property of matter that creates a force between objects Ex. When you get shocked.
16.1 Electric Charge and Force I CAN: -UNDERSTAND THAT ELECTRICITY IS THE FLOW OF ELECTRONS THROUGH AN ELECTRIC CONDUCTOR -EXPLAIN THE CONCEPTS OF CURRENT,
Electrostatics Study of electrical charges that can be collected in one place Involves Electric charges Forces between them Their behavior in material.
Electrostatics. Charges Electrons Negative q = -1.6 x C Protons Positive q = +1.6 x C Neutrons Neutral.
Draw a sketch of how YOU think electricity is made and how it gets to your house. Label as many things as you can. Write a short paragraph explaining.
Electrostatics. Electric Charges: the basis of electricity is charge. The charge on an atom is determined by the subatomic particles that make it up.
Electric Charges.
Static Electricity Atoms (and groups of atoms) have an electric charge when they have an unequal number of electrons and protons Recall that atoms are.
Chapter 7 Section 1.
Electric Charge What are the different kinds of electric charge?
Electric Charge And Electric Forces.
If atoms start out as neutral, how do we know which material becomes positively charged and which material becomes negatively charged? Truemper 2016.
Unit 3 Lesson 1 Electric Charge and Static Electricity
Electric Charge and Static Electricity
ELECTRICITY.
What is Static Electricity?
What is Static Electricity?
Electricity  .
Electrostatic Forces.
Unit 9 Introduction to Electricity (Filled In)
Warm Up #10 Which particles in an atom have electric charges?
Electric Charge and Static Electricity
Electricity Chapter 17.1.
STATIC ELECTRICITY: A Particle Model of Electricity
Electric Charge and Static Electricity
Atom p. 88 The smallest unit of an element How small are they?
Notes 8: Electric Charge
Physical Science 7.1 Electric Charge.
Electric Charges & Current
Electrostatics Notes (670)
STATIC ELECTRICITY.
Electric Charge Unit 11 Electrostatics.
Static Electricity.
Electrostatics To insert this slide into your presentation
Electric Charge and Static Electricity!
A Model for the Electrical Nature of Matter
Title: What are the effects of moving charge ?
Electric Charge and Static Electricity
Electricity.
STATIC ELECTRICITY: A Particle Model of Electricity
Atomic Structure.
ELECTRIC ITY.
ELECTRICITY: Electric Charge
Charged Particles All ordinary matter is made of protons, neutrons, and electrons. A proton has a charge of 1.6 x C. An electron has a charge of.
Jeopardy Final Jeopardy |Particles Force Misc $100 $100 $100 $100 $100
Electricity.
Electrostatics (Electricity at rest).
Atomic Structure.
Parts of the Atom Physics 3.
Methods of Charging S Explain attraction of neutral objects using the particle model of electricity. S Explain electrostatic phenomena.
Electricity and Magnetism
Electric Charge And Electric Forces.
Electric Charge and Static Electricity
The materials are electrically charged.
Electric Charge and Static Electricity
Electricity Electric Charge.
Unit 3 Lesson 1 Electric Charge and Static Electricity
Static Electricity.
Presentation transcript:

Electricity

Electricity is the To understand electricity, we first have to review the structure of matter

Atomic Size Atom = Comes from Greek word for “uncuttable” or “indivisible” Smallest unit of an element of that element; Building blocks of matter Nucleus Electron Cloud

- Basic Atomic Parts + Sub-atomic Particles : Positively charged (+1) Mass = 1 atomic mass unit (amu) Found in nucleus of atom Neutrally charged (0) Mass = 1 amu Negatively charged (-1) Mass ≈ 0 amu (is extremely small) Found in energy shells outside nucleus of atom + -

Basic Atomic Structure : Center of atom 99% of atomic mass in nucleus Where the protons and neutrons are found (Energy Shells) Regions around nucleus where electrons are found based on how much energy they have Because electrons are not tightly bound in the nucleus, they can move N = 3 N = 2 N = 1 Nucleus

THINK! What are the charged parts of the atom? Which part of the atom moves freely around the nucleus?

Neutral v. Charged Because electrons can move freely: When an atom has a balanced number of positive (+) protons and negative (-) electrons, then the object is If more (+) , then positively charged If more (-) , then negatively charged Overall, objects that are have an unequal number of protons and electrons

THINK! What makes an object positively charged? What makes an object negatively charged? What makes an object neutral?

When electrons move (like when you rub a balloon on your hair or wool), the moves too! In the balloon case, your hair or wool is left with a and the balloon now has extra electrons so it has a charge Your hair or wool and the balloon “stick together” positive-negative/ neutral-negative

What if I charge a second balloon by rubbing it against hair or wool…

The second balloon also has a negative charge and it pushes away from the first balloon

Conductors v. Insulators are materials that electrons can freely flow through Conductors distribute electrons throughout an object Ex. Metals, Water, YOU… are materials that electrons can’t easily move through In insulators electrons get “stuck” in one place Dry air, wood, glass, rubber

THINK! Are electrical conductors/insulators the same or different from heat conductors/insulators? Give an example of a good conductor for electricity and a poor conductor of electricity

Ways of Charging When objects slide past each other One materials gains electrons/ one loses electrons Balloon on head, rubbing your feet on the floor and getting shocked by a doorknob

A charged object comes in contact with a neutral object The charged object “gives” its charge to the neutral object Ex. Touching a charged balloon to neutral bits of paper

Bringing a charged object really close to a neutral object BUT not touching it Overall net charge of neutral object stays zero

Exit Ticket

Which of the following particles has a negative charge? Proton Neutron Electron Atom

Which of the following is not a good conductor of electricity? A. Aluminum B. Glass C. Silver D. Copper

A conductor differs from an insulator in that a conductor…. Has an excess of protons Has an excess of electrons Can become charged and an insulator cannot None of the above

Electrical forces ____. a. can cause objects to only attract each other b. can cause objects to only repel each other c. can cause objects to attract or repel each other d. have no affect on objects