There is a repulsive force between two charged objects when

Slides:

Advertisements

Similar presentations

Chapter 20 Electric Circuits.

Advertisements

+ V (Volt) = W (work done, J) Q (charge, C)

Have you ever held a wire that has current flowing through it? If so what did you notice about it? The wire gets hot. The increase in temperature causes.

Quiz 8 Fall A negative ion has more A) electrons than neutrons. B) electrons than protons. C) protons than electrons. D) neutrons than protons.

Electricity Review. A closed circuit: a.is off. b.is on. c.has a break in it.

Chapter 20 Electric Circuits. A battery consists of chemicals, called electrolytes, sandwiched in between 2 electrodes, or terminals, made of different.

Cells have positive and negative electrodes.

Lecture One Resistance, Ohm ’ s Law series and parallel.

Electric and Magnetic Phenomena

Chapter 22 Reading Quiz Dr. Harold Williams. Reading Quiz 1.The charge carriers in metals are A.electrons. B.positrons. C.protons. D.a mix of protons.

Electricity and Magnetism. Flashlight Why do the batteries have to be facing the same way in order for the flashlight to work?

Electric current and direct-current circuits A flow of electric charge is called an electric current.

Chapter 7. Voltage Remember: Atoms are in EVERYTHING and they are made up of equal amounts of positive and negative charges. Battery: uses chemical energy.

Chapter 13 Electricity!. Quick review: Conductors Insulators Like charges ___________ and unlike charges _____________. Repel Attract.

Copyright © 2008 Pearson Education, Inc., publishing as Pearson Addison-Wesley Electricity Physics 102 Goderya Chapter(s): 22 and 23 Learning Outcomes:

CURRENTS AND OHM’S LAW. What?  Electricity – flow of electric current  Electric current – the movement of an electrical charge.  In most cases, we.

Current Electricity.

Unit 3 Day 1: Voltage, Current, Resistance & Ohm’s Law Batteries Electric Current Conventional Current Resistance Resistors Energy Dissipated in a Resistor.

ConcepTest 17.1a Electric Potential Energy I

P5 – Electric Circuits. Static Electricity When two objects are rubbed together and become charged, electrons are transferred from one object to the other.

Twenty Questions Electricity 1. Twenty Questions

Electricity Define electric potential difference Determine the change in potential energy when a charge moves between two points at different.

ELECTRICITY REVIEW. Charges  There are two types of charges- what are they?  Positive and Negative  Where do positive charges come from?  Protons.

Hydraulic circuitElectric circuit.

Electricity Part 2. Learning Objectives TLW know the impact of energy transfer and energy conversion in everyday life (TEKS 5) TLW evaluate, investigate.

Welcome to Physics Jeopardy Chapter 17 Final Jeopardy Question Electric Current Circuits 100 Capacitance Electric potential& Electric potential difference.

1 LC1 Core Science Project.  Components :-  -Electrons Move from the (-ve) to (+ve) side -Electric current moves from (+ve) to (-ve) side -Energy is.

Ohm’s Law & Electrical Power. Resistance - the tendency for a material to oppose the flow of electronsResistance - the tendency for a material to oppose.

Electrical Potential (Voltage) Answers (Page 303)

Welcome to Physics Jeopardy Chapter 17 Final Jeopardy Question Electric Current Circuits 100 Capacitance Voltage

Electric Fields & Currents. Electric Fields Think of electric force as establishing a “field” telling particles which way to move and how fast Electric.

 Electricity is caused by the flow (or net movement) of Electrons  Electric Current – the rate that positive charges flow in a circuit › Actually a.

4.2.3B Electrical Power What About Watts?. Power Law Moving electrons (current) requires ENERGY How much energy gets used depends on: Strength of push.

Chapter 7 Electricity. What is Charge? Protons have a (+) charge Electrons have a (-) charge Charge (q) is measured in Coulombs The elementary charge.

Electricity. Electric Charge and Force  Electric Charge- electrical property of matter that creates a force between objects. Charges- 2 charges generated.

Electricity Ch. 11. Electric Charge All matter is made of atoms Atoms contain 2 charged particles—what are they? These charges produce attractive and.

Pre-Test Arrange proton, neutron, and electron in order of mass lowest to highest. What is the charge on each? Describe the behavior of like and unlike.

Electrical circuits. Intensity (I): Number of charges that flow past a given point every second. Measured in Amperes (A). Wires that carry the electrical.

Electric Circuits. Potential Electric Potential is just like gravitational potential It depends on –The distance from the source –The amount of charge.

Electrical Systems. VOCABULARYOBJECTIVES  Series circuit  Voltage drop  Kirchoff’s Voltage Law Describe a series circuit. Calculate the resistance.

(28 – 1) Chapter 28 Magnetic Fields In this chapter we will cover the following topics: Magnetic field vector Magnetic force on a moving charge Magnetic.

ELECTRIC CURRENTS. SIMPLE CIRCUIT What’s providing the energy? What’s “moving” in the circuit? What’s causing the movement? e.m.f. = Electromotive Force.

Bellwork (2/18)  [ none this week – Happy Rodeo Break ]

CURRENT AND RESISTANCE LECTURE 8 DR. LOBNA MOHAMED ABOU EL-MAGD.

Chapter 13.1 ELECTRICITY AND MAGNETISM. Electric Charge  An electrical property of matter that creates a force between objects example: Touching a doorknob.

ELECTRICI TY PART 2, VOLTAGE AND CURRENT VOLTAGE AND CURRENT  Electric charges have ELECTRICAL POTENTIAL ENERGY Depends where they are in the electric.

Electric Circuits. Electric circuit: a complete path from the positive terminal to the negative terminal.

When current is flowing in an ordinary metal wire, the magnitude of the average velocity of the electrons is closest to A) 1 m/s. B) 1 km/s. C) 10 m/s.

PHYSICAL SCIENCE Electricity Part 2: Current Current Objectives Describe how batteries are sources of voltage. Explain how a potential difference.

20.1 Electromotive Force and Current Example 1 A Pocket Calculator The current in a 3.0 V battery of a pocket calculator is 0.17 mA. In one hour of operation,

16.2 Current and Voltage. Electric Current (review from yesterday) Electric current: the flow of electric charge (movement of electrons)

Electric Circuits and Electric Current  A flashlight, an electric toaster, and a car’s starting motor all involve electric circuits and electric current.

Electricity and Circuit. Types of Electricity Static Electricity – no motion of free charges Current Electricity – motion of free charges – Direct Current.

Electric Circuits. Section 1: Electromotive Force & Current.

 Measurement of difference in potential energy between 2 locations in a circuit.  Also called potential difference  Measured in volts (V)  Drives.

Electrostatics (Static Electricity) was a single discharge. Current is a steady flow of electric charge.

Measuring Electricity. Electric Potential – the electrical energy that an electron possesses. Electric current is a measure of the rate at which the electric.

Chapter 17: Electricity PEPS Rainier Jr/Sr High School Mr. Taylor.

Twenty Questions Electricity 1.

Series Circuit – 1 bulb Series Circuit – 1 bulb.

Unit 7 - Electricity The basis of electricity is the Law of Charges and the movement of electrons.

ELECTRICITY JEOPARDY.

Modified by Mr. Wanninkhof

Voltage Difference The difference in electrical potential between two places. Unit of measure = V (volts) Voltage causes current to flow through an electric.

Announcement Ohm’s law video is due at midnight Makeup lab today

Physical science notes

Electric Circuits Chapter 35.

Warm-up What is a closed circuit? What is an open circuit?

Presentation transcript:

There is a repulsive force between two charged objects when charges are of like sign. charges are of unlike sign. c. they have the same number of electrons. d. they have the same number of protons.

There is an attractive force between two charged objects when charges are of unlike sign. charges are of like sign. c. they have the same number of protons. d. they have the same number of electrons.

When there is an equal amount of positive and negative charges on an object, the object is a. positively charged. b. neutral. c. negatively charged. d. supercharged.

Electric force varies depending on the a. charge and distance between charged objects. b. charge and mass of charged objects. c. height and mass of charged objects. d. mass and distance between charged objects.

Potential difference is measured in a. amperes. b. coulombs. c. volts. d. joules.

Potential difference is measured in a. amperes. b. coulombs. c. volts. d. joules.

An electric current is produced when charges are accelerated by an electric field to move to a position of potential energy that is a. higher. c. equal. b. lower. d. infinite.

Current is the rate at which charges move through a(n) a. conductor. b. voltage. c. insulator. d. joule.

Potential differences causes a. electrons to move from the positive terminal to the negative terminal. b. electrons to move from the negative terminal to the positive terminal. c. protons to move from the positive terminal to the negative terminal. d. protons to move from the negative terminal to the positive terminal.

The brightness of a light bulb is determined by its filament’s a. voltage. b. watts. c. amperes. d. resistance.

The SI unit of resistance is the a. volt. b. ohm. c. ampere. d. joule.

A flashlight bulb with a potential difference of 4 A flashlight bulb with a potential difference of 4.5 V across its filament has a power output of 8.0 W. How much current is in the bulb filament? a. 3.7 A b. 0.23 A c. 1.8 A d. 0.56 A

What is the potential difference across a resistor that dissipates 5 What is the potential difference across a resistor that dissipates 5.00 W of power and has a current of 5.0 A? a. 1.0 V b. 4.00 V c. 125 V d. 0.20 V

There is a potential difference of 12 V across a resistor with 0 There is a potential difference of 12 V across a resistor with 0.25 A of current in it. The resistance of the resistor is a. 48 W c. 12 W b. 24 W d. 0.021 W

A 13 ohm resistor has 0. 050 A of current in it A 13 ohm resistor has 0.050 A of current in it. What is the potential difference across the resistor? a. 6.5 V c. 0.065 V b. 0.65 V d. 0.0065 V

A resistor has a resistance of 280 ohms A resistor has a resistance of 280 ohms. How much current is in the resistor if there is a potential difference of 120 V across the resistor? a. 160 A c. 0.12 A b. 0.43 A d. 2.3 A

Appliances connected so that they form a single pathway for charges to flow are connected in a(n) a. series circuit. c. open circuit. b. parallel circuit. d. closed circuit.

What is the current of this circuit?

1. What is the voltage of the battery in this circuit?