Charging by Contact & Insulators and Conductors

Slides:

Advertisements

Similar presentations

Electricity. Electrical Charge and Forces  Electrical charge is the property that causes protons and electrons to attract or repel one another.  There.

Advertisements

Charging and Discharging Objects Remember! When an electron moves from one object to another, both objects are: Electrically charged This can happen in.

Static Electricity and Lightning

Creating Static Electricity. Electrical Insulators Conductivity is the ability of materials to allow electrons to move freely in them Materials that hold.

 What do you think the term Electric Charge means?

Electric Charge and Static Electricity. Electric Charge  All matter is made up of atoms  Atoms contain 1. Protons (+) 2. Neutrons (0) 3. Electrons (-)

 Watch the Bill Nye Video and answer the corresponding questions.

Charging and Discharging Objects 9.3, 9.8, 9.5, 9.7.

Electric Charge and Static Electricity

Electrostatics. Electricity Comes from Greek word elektron which means “amber” because it was noticed that when amber was rubbed with cloth it attracts.

Magnetic and Electric Forces

Bellwork (2/4/14) How did you charge the strips in the lab yesterday? How did you charge the strips in the lab yesterday? By friction (rubbing) By friction.

What is Electric Charge?  Which particles inside atoms have a charge?  A: Protons (+) Electrons (–)  Charge is a physical property—if an object has.

Ch. 5 Sec.1 Notes. Electric Charges The law of electric charges states that like charges repel and opposite charges attract. _ _ _.

Static Electricity 2 Laws of Static Charges

Static Electricity Physical Science 8 th Grade Electric Charge All solids, liquids, and gases are made of tiny particles called atoms. Protons, and electrons.

Electric charge is a fundamental property of matter, like mass. Electric charge is a fundamental property of matter, like mass. Objects are either positive,

Charging and Discharging Objects

Electricity Unit. An electric charge is a negative or positive amount of electricity that builds up in an object.

1 The Electrical nature of mater STATIC ELECTRICITY.

Static Electricity. Energy Energy:the ability to do work. Energy cannot be created or destroyed. It can only be transformed. Forms of Energy: – heat –

Electricity 7.1 Electric Charge. Journal 03/04/2011 Diagram an atom with 2 protons, 2 neutrons, and 2 electrons. Label each type of particle and the charge.

Static Electricity. What is Static Electricity? Static electricity is the build up of electrons on the surface of objects. This charge will stay on the.

Introduction to Electricity 7SCIENCE. Electricity brainstorm.

Charges and How They Behave

9.6 INSULATORS AND CONDUCTORS. How would you feel if someone asked you to grab a live power line? Knowledge of insulators and conductors allows us to.

Electricity A shocking story!. What do we already know about electricity? In a group - brainstorm for 10 minutes - everything that you can think of that.

Electric Charge and Static Electricity. Electric Charge  All matter is made up of atoms  Atoms contain 1. Protons (+) 2. Neutrons (0) 3. Electrons (-)

Electrostatics. Electrostatics A. Definition:  The study of electric charges that can be collected and held in one place  Non-moving, no flow B. Examples.

9.6 Insulators and Conductors

Exploring the Nature of Static Electricity

Charging and Discharging Objects 9.3, 9.4, 9.8, 9.7.

 Electrical Insulator - a substance where electrons cannot move freely from atom to atom.  Electrical Conductor – a substance where electrons can move.

Part 2.  Conductors:  Materials where electrons flow freely.  Electrons are loose in atom  Examples - Metals (silver, copper, gold, aluminum, iron,

Electric Charge and Static Electricity. Law of Electric Charges  The law of electric charges states that like charges repel, and opposite charges attract.

Introduction to Electricity Exploring Static Charges.

Electric Charge. Positive & Negative Charge Protons—positive charge Electrons-negative charge Protons=electrons.

nBHQhttp:// nBHQ.

Grounding Grounding = connects material directly to the ground, or earth. The Earth is huge!! It can accept or give up many electrons without any significant.

Law of attractive forces Opposites attract Likes repel 7.1.

Warm Up: What is this picture an example of? How does it work? What would happen if you placed a magnet inside the coils?

Static Electricity. Review: What is inside the atom? The atom is made of 3 kinds of particles. The atom is made of 3 kinds of particles. The electron.

Clothes tumble in the dryer and cling together, Shocks from a door knobs after walking across carpet, Sparks of electricity after pulling off clothes,

Topic: Electric Charge and Static Electricity PSSA: C / S8.C.2.1.

What is electricity? Illustrate and describe. IN ?: P.98.

Electricity – Chapter 16 There are 2 types of Electricity 1. Static Electricity (Electrostatics) - a build up of electric charges 2. Current Electricity.

Charging and Discharging Objects

Unit 3: Electricity and Magnetism Lesson 1

Conductors & Insulators

If atoms start out as neutral, how do we know which material becomes positively charged and which material becomes negatively charged? Truemper 2016.

Conductors & Insulators

Electrostatic Forces.

Exploring the Nature of Static Electricity

Electrostatics Electricity at rest.

Conductors & Insulators

Chapter-18 Electric Forces and Electric Fields

Electrical Conductivity Insulators and Conductors

Static Electricity.

Insulators and Conductors

Electrostatics.

Static Electricity S Investigate and explain electrostatic phenomena using the particle model of electricity. - Include: conservation of charge,

Charging Objects by Contact and Induction

Insulators and Conductors

Static Electricity and Charging Objects

Electric Charge Chapter 7.1.

Methods of Charging S Explain attraction of neutral objects using the particle model of electricity. S Explain electrostatic phenomena.

Electric Charge and Static Electricity

Presentation transcript:

Charging by Contact & Insulators and Conductors Chapter 9.5 & 9.6 Charging by Contact & Insulators and Conductors

Charging by Contact Charging by contact occurs as the result of one object already being charged. For example, after you have crossed a carpeted floor, your body may be negatively charged. The door knob is usually uncharged. Your body then shares the electric charge with the doorknob through “contact”. Actually, your hand does not even get to touch the doorknob before the charge begins to transfer in the form of a spark.

Charging by Contact Think about it!!! Why would we have to wear special shoes and clothes in: A coal mine? A hospital operating theatre? Parts of an oil refinery?

Insulators and Conductors In order to use electricity to our advantage, we need both insulators and conductors. An insulator is a substance which slows the free movement of electrons from atom to atom. A conductor is a substance in which electrons can move freely from one atom to another.

Insulators and Conductors Since insulators do not allow the free movement of electrons, they can encourage the build up of static charge on the surface. On the other hand, since conductors such as copper allow the free movement of electrons, a static charge can never build up.

Common Insulators and Conductors Good Fair Good Conductors Conductor Insulator Copper Carbon Fur Gold Human body Rubber Mercury Earth Wood Iron Water Vapour Paper

Questions P.279 #2 & 3 P.281 # 2,4 & 6