Charges: Protons and electrons have equal but opposite charges.

Slides:

Advertisements

Similar presentations

Initially, each object is neutral (i.e. each has = numbers of protons & electrons)

Advertisements

Electric Charge Static Electricity

Atoms are composed of Electrons – fundamental negatively charged (-) particle of matter (-1.6 x10-19C) 2. Protons – fundamental positively charged (+)

PS-6.5 How can objects acquire a static electric charge through friction, induction, and conduction.

Static Electricity.

Electrostatics Electrostatics – electricity that does not move or is static All electricity comes from electrical forces from atoms -Atoms contain protons.

Foundations of Physics

Electrostatics Electrostatics The study of electrical charges that can be collected and held in one place. The study of electrical charges that can be.

Static Electricity Most objects have no overall charge and are neutral. Uncharged objects become charged by gaining or losing electrons. Loses electrons.

STATIC ELECTRICITY II: Charging neutral objects. S Construct one or more electrostatic apparatus and explain how they function using the particle.

Electric Charge. Atoms Small particles of matter Composed of 3 smaller particles: Protons = positive (+) charge Electrons = negative (-) charge Neutrons.

Make careful observations and record them on your whiteboards. Make careful observations and record them on your whiteboards. Take a few minutes to talk.

Grade 9 Science – Unit 4 – Electricity #1 Atom Structure Electric Charges ChargingElectric Discharge More Charging

What Do All These Pictures Have In Common?

1 The Electrical nature of mater STATIC ELECTRICITY.

Three Methods of Electrostatic Charging. FRICTION Friction between the objects allows electrons to move from one object to the other.

Chapter 20, Section 1 Electric Charge and Static Electricity Wednesday, January 6, 2010 Pages

Electric Charge What produces a net electric charge? An excess or shortage of electrons produces a net electric charge.

The magnitude of the charge on the proton is equal to the charge on the electronThe magnitude of the charge on the proton is equal to the charge on.

Mechanisms for Transfer of Charge Restless Electrons.

Restless Electrons Transfer of Charge Good Conductor/ Poor Insulator Allows electrons to flow freely. Good Insulator/ Poor Conductor Strongly resists.

ELECTRICITY. 1. Electric Charge  Atoms are made up of 3 particles –Neutrons have a neutral charge. –Protons have a positive charge. –Electrons have a.

Hosted by Your Phriendly, Phun Physics Teacher Charges Electrostatics Methods of charging Properties

Chapter 20 Electricity Lightning provides a powerful display of electrical energy.

Electric Charge & Static Electricity. How do Charges Interact? Atoms contain charged particles called electrons and protons. The charge on a proton is.

15.1 Electric Charge and Current pp Mr. Richter.

Chapter 15 Electricity and Magnetism. History of Electrostatics Electrostatics is the study of the nature, behavior, and uses of static electricity. Benjamin.

7-1 Electric Charge You will be learning: 1.To describe how electric charges exert forces on each other. 2.How to compare the strengths of electric and.

Electric Forces and Fields Electric Charge. Electric charge – an electrical property of matter that creates a force between objects Experience movement.

Electric Forces and Fields Chapter 18. ELECTRIC CHARGE Section 1.

20.2 Electrical Forces. What was the first method of charging an object? Friction – rubbing electrons onto one object creating a negative charge and leaving.

Electrostatics Charge & Coulomb’s Law. Electrostatics Study of electrical charges that can be collected and held in one place.

Electric Charge and Static Electricity

Electrostatics How can an object be charged and what affect does that charge have upon other objects in its vicinity?

Electrostatics (Static Electricity)

18.1 Electric Charge and Static Electricity

Electric Charge and Coulomb’s Law

Electric Charge What produces a net electric charge? An excess or shortage of electrons produces a net electric charge.

Static electricity.

Electrostatics.

Matter Matter: anything that has mass and takes up space.

Notes 15.1 Static Electricity - electric charge at rest

Charging by contact Friction, Conduction.

Electric Charge and Static Electricity

Electric Charge and Static Electricity

Electrostatics Notes (670)

Mechanisms for Transfer of Charge

Mechanisms for Transfer of Charge

Electric Charge and Static Electricity!

Electrostatics.

Static Electricity Most objects have no overall charge and are neutral. Uncharged objects become charged by gaining or losing electrons. Loses electrons.

ELECTRICAL CHARGE Ch. 32.

Chapter 7 Section 1: 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.

Electrostatics.

Methods of Charging.

Chapter 7.2 Electric Force

Electric Charge.

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

Electricity and Magnetism

How do objects become charged?

Physics Electrostatics.

Electric Charge and Static Electricity

Aim: How do we explain the transfer of electric charge?

Electricity Electric Charge.

What is Induction? Charging by induction is where a charged object causes electrons to move inside another object, without them touching. No charges move.

Electric Charge.

Presentation transcript:

Charges: Protons and electrons have equal but opposite charges

Which particles can move and why? ELECTRONS! They’re light (mass = 9.10938356 × 10-31 kilograms) They’re small (radius = ~2.8179 x 10-15 meters) They’re on the outside of the atom

Net Charge: An object that gains electrons is "charged negative" An object that looses electrons is "charged positive"

What is the NET charge on these objects?

How can we charge an object?

How can we charge an object? Think: How can we get electrons to move? Friction - transferring electrons through rubbing Conduction - transferring electrons through touch or contact   Induction - bringing a charged close to a neutral object and polarizing it

Friction: transferring electrons through rubbing Think: ripping electrons off one object and transferring them to another. Example: sock & shirt http://phet.colorado.edu/en/simulation/balloons

Conduction: transferring electrons through touch Think: electrons flowing from one object to another Example: Van de Graaff Generator and hair

Induction: bringing a charged close to a neutral object and polarizing it What’s that?

Polarization: Even though your net charge might be neutral, the object can still be polarized! Polarization is when each side of the object develops a charge.

Induction: bringing a charged close to a neutral object and polarizing it Think: Think: inducing a charge at a distance Example: Pop can & rod

How can we get rid of a net charge How can we get rid of a net charge? Think: How can we restore a neutral charge? Discharging: getting rid of net charge Grounding: removing electrons through contact with the 'ground' A ground is something that has seemingly infinite supply of electrons; it can give or take electrons from the object Example: ground Example: person

Electroscope Lab

Post-Lab Discussion: Describe how positive and negative charges interact with one another. Describe how neutral charges interact with other charges. Knowing that a neutrino is chargeless, what types of interactions would you expect? Knowing this, why might IceCube researchers be so interested in neutrinos? (Hint: Think about the path a neutrino would take from its source to you!) Knowing this, why might neutrinos be difficult for IceCube researchers to detect?