Electrical Systems Series Circuits Parallel Circuits Electrical Power.

Slides:

Advertisements

Similar presentations

Advertisements

Factors Affecting Resistance

ELECTRICAL SYSTEMS 21.3.

Quarter 3 Test 2 Review. 1 Typically, household appliances operate at 120 volts. What is the current flowing in the circuit of a microwave when the resistance.

Series Circuits One kind of circuit is called a series circuit. In a series circuit, the current has only one loop to flow through. 7.3 Electrical Energy.

Foundations of Physics

Electric Circuits Chapter 20.3.

Before we get started, let’s review: Describe a Series Circuit.

 Rate at which energy is consumed or produced  Changed into other forms of energy  Measured in WATTS (W)

Power and Energy. Power Power means work over a time period Units = Watts Electric power is measured in Watts.

Measuring Electrical Energy Lesson 11. Measuring Electrical Energy What is Energy? Energy- The ability to do work Electrical Energy- The energy transferred.

Electric Power, AC, and DC Electricity

Circuits & Electronics

Circuits. Reviewing terms Series and Parallel Circuits Key Question: How do series and parallel circuits work?

Chapter Twenty One: Electrical Systems

Warm-up Activity Think about your experience with the PhET circuit simulation that you recently completed Record in your notebook: –Two things that you.

13 Electric Circuits.

Electric Current & Electricity Calculations

Bellringer What happens when you turn the lights on? What allows lights to be turned on and off? Write your answer or draw an explanatory picture for later.

34.11 Electric Power Electric power is equal to the product of current and voltage.

Physics Day 23 Aim: How much power does a toaster use? LO: Calculate power use for V, I and R LO: Calculate energy use from power LO: Kilowatt-hour is.

Electrical power. Objectives Use the equation for electrical power to solve circuit problems. Understand basic concepts for home electricity usage and.

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.

Bellringer Two AA batteries in series will provide a voltage of how many volts?

Jag Mark In terms of electrons, how can an uncharged object become charged?

Electrical Power & Energy Chapter 7-3. Electrical Power F Power is the rate at which work is done F Electrical energy is easily converted into other forms.

Measuring Electrical Energy.  Energy: the ability to do work.  Electrical Energy: energy transferred to an electrical load by moving electric charges.

Chapter-13 Outline 1Electric Circuits and Electric Current, I 2 Ohm’s Law, ΔV = I R; and Resistance, R. 3 Series and Parallel Circuits 4 Electric Energy.

SPH3U Electricity & Circuits

Measuring Electrical Energy Energy: -the ability to do work Electrical Energy: - energy transferred to an electrical load by moving electric charges.

Chapter 6 Power. Chapter 6.1 Power in Mechanical Systems.

Physical Science Mr. Barry. Series circuits have one loop through which current can flow.

Electrical Calculations. Ohm’s law describes the relationship between current, resistance, and voltage. As voltage increase, current increases As resistance.

ELECTRICAL SYSTEMS. Chapter Twenty One: Electrical Systems  21.1 Series Circuits  21.2 Parallel Circuits  21.3 Electrical Power.

Electric Power Lesson 2.5. Key Concepts How do you calculate electric power? What factors are used to determine how people pay for electrical energy?

 Phantom Load: The power used by something while turned off Another word for phantom load is standby power.

Topic 7: Measuring Electric Power. Getting electricity to your home Power generating station  transmission lines  home Step- up transformer Step- down.

Energy Consumption Energy consumption is measured in kilowatt. hours. A kilowatt hour is the amount of energy being consumed per hour. –Energy (kwh) =

ELECTRICITY: Electrical Energy (Circuits)

Electrical power pg. 49. Objectives Use the equation for electrical power to solve circuit problems. Understand basic concepts for home electricity usage.

Energy & Power for APES Adapted from Maureen Goble.

Energy and Power. Energy The ability to do work. Measured in Joules.

Unit 7, Chapter 20 CPO Science Foundations of Physics.

Power in Electrical Systems Power in Electrical Systems.

Circuits. Reviewing terms Circuits need 3 basic parts: An Energy Source Load (Power demand) Wires.

Electrical Circuits Section 7.3. Electrical Circuits Circuits rely on generators at power plants to produce a voltage difference across the outlet, causing.

Electrical power pg. 49 This lesson defines electric power and examines household electrical systems and power usage. Students learn how power is related.

Physical Science 7.3 Electrical Energy.

Measuring Electrical Energy

7. Power in electric circuits

Electric Power Energy Cost

Measuring Electrical Energy

Electricity 7-3 Circuits.

Series and Parallel Circuits

20.1 Series and Parallel Circuits

By: Michelle, Yeovani, Jalen

Electrical Calculations

Section 3.3 Measuring Energy Input and Output 1

Bellringer What happens when you turn the lights on? What allows lights to be turned on and off? Write your answer or draw an explanatory picture for later.

Chapter-13 Outline Electric Circuits and Electric Current, I

Physical Science 7.3 Electrical Energy.

Section 3.3 Measuring Energy Input and Output 1

Basic Electrical Calculations

Top 10 List – Electrical Energy

Chapter Twenty One: Electrical Systems

The Cost of Electrical Energy

Electric Power.

Warm up A light needs 3 amps to produce light the resistance of the bulb is 1.5 ohms. How many batteries do you need if each battery is 1.5 volts? What.

Notes 7.3 : Calculating Electric Power + Electrical Energy

20.1 Short circuit A short circuit is a parallel path in a circuit with zero or very low resistance. Short circuits can be made accidentally by connecting.

Presentation transcript:

Electrical Systems Series Circuits Parallel Circuits Electrical Power

Electrical Power Electrical power is measured in watts, just like mechanical power. Power is the rate at which energy is changed into other forms of energy such as heat, sound, or light. Anything that “uses” electricity is actually converting electrical energy into some other type of energy.

Important review

Electrical Power The watt is an abbreviation for one joule per second. A 100-watt light bulb uses 100 joules of energy every second.

Power Power is a “rate” and is measured using current and voltage .

Different forms of the Power Equation

Kilowatt Most electrical appliances have a label that lists the power in watts (W) or kilowatts (kW). The kilowatt is used for large amounts of power.

A 12-volt battery is connected in series to two identical light bulbs. Solving Problems A 12-volt battery is connected in series to two identical light bulbs. The current in the circuit is 3 amps. Calculate the power output of the battery.

Looking for: Given: Relationships: Solution: Solving Problems …power of battery Given: …voltage = 12 V; current = 3 amps Relationships: Power: P = I x V Solution: P = 3 A x 12 V = 36 watts

Buying Electricity Utility companies charge customers for the number of kilowatt-hours (kWh) used each month. A kilowatt-hour is a unit of energy. The number of kilowatt-hours used equals the number of kilowatts multiplied by the number of hours the appliance was turned on.