Presentation is loading. Please wait.

Presentation is loading. Please wait.

1 of 46© Boardworks Ltd 2007 Task1: Using diagrams, describe how electricity is produced from a battery. P5 Task 2: Using diagrams, describe how electricity.

Similar presentations


Presentation on theme: "1 of 46© Boardworks Ltd 2007 Task1: Using diagrams, describe how electricity is produced from a battery. P5 Task 2: Using diagrams, describe how electricity."— Presentation transcript:

1 1 of 46© Boardworks Ltd 2007 Task1: Using diagrams, describe how electricity is produced from a battery. P5 Task 2: Using diagrams, describe how electricity is produced from a generator. P5 Task 3: Describe briefly using a flow diagram what the National Grid is and how electrical energy is transferred to our home or workplace. P7 Nearly Completed – need photograph and labels Check your progress...

2 2 of 46© Boardworks Ltd 2007 TITLE: Green Electricity Objectives (We are learning that): To know the difference between how electricity is produced using a generator in a power station (a.c.) and a battery in the home (d.c.). KEY WORDS: Current Voltage Electricity Amps Volts Series Parallel Resistance Ohms Potential Difference Outcomes: You should be able to... Label and explain how a battery works on a diagram to include the type of current Label and explain how a generator works on a diagram to include the type of current Annotate on your national grid why energy is lost using a secondary source of information Annotate your photograph of your national grid model

3 3 of 46© Boardworks Ltd 2007 TASK OUTLINE: You are working for an environmental science department within the company ‘Voltage’. Voltage’s main electrical generating site is having an open day for local people and you have been asked to test the demonstrations and produce a poster that will be handed out to all visitors giving them information on what electricity is, how it is generated and how it is transferred across the country.

4 4 of 46© Boardworks Ltd 2007 Task – 2B PASS The difference between how electricity is produced using a generator in a power station (a.c.) and a battery in the home (d.c.).

5 5 of 46© Boardworks Ltd 2007 World’s first... Two metals in a frog’s leg made it twitch Italian physicist Alessandro Volta figured out there was an electrical signal, 1827

6 6 of 46© Boardworks Ltd 2007 World’s largest... In Alaska Is bigger than a football pitch!

7 7 of 46© Boardworks Ltd 2007 World’s smallest... In human bodies Stimulates nerve and muscle cells

8 8 of 46© Boardworks Ltd 2007 Fruit Battery – next lesson Homework Plug the black and red wires into the voltmeter Insert the copper coin and the zinc metal into your fruit Connect the crocodile clips to the metal Write down the reading from the voltmeter Repeat with a different fruit

9 9 of 46© Boardworks Ltd 2007 Task1: Using diagrams, describe how electricity is produced from a battery. P5 Task 2: Using diagrams, describe how electricity is produced from a generator. P5 Task 3: Describe briefly using a flow diagram what the National Grid is and how electrical energy is transferred to our home or workplace. P7 Nearly Completed – need photograph and labels Check your progress...

10 10 of 46© Boardworks Ltd 2007 Learning Objectives (P6) Using diagrams, describe how electricity is produced from a battery.

11 11 of 46© Boardworks Ltd 2007 Copper Zinc +- How a battery works Chemicals (electrolyte) + - (P5) Task; Draw the fully labelled diagram and Write a paragraph to explain how your battery works

12 12 of 46© Boardworks Ltd 2007 Acid (electrolyte) copper Zinc + -

13 13 of 46© Boardworks Ltd 2007 Batteries produce direct current (DC)

14 14 of 46© Boardworks Ltd 2007 Learning Objectives (P6) Using diagrams, describe how electricity is produced from a generator.

15 15 of 46© Boardworks Ltd 2007 What is this?

16 16 of 46© Boardworks Ltd 2007 How does a Generator work? Electrical generators supply electricity. Turbines in a power station use steam to turn them These turbines then turn generators to make electricity.

17 17 of 46© Boardworks Ltd 2007 What is inside a generator? A generator is made up of a large coil of wire between 2 magnets. The steam which turns the turbine makes the coil of wire turn in-between the 2 magnets When the wire in the coil cuts the magnetic field between the 2 magnets this causes a current to flow through the coil of wire. Current is the flow of electrons (electricity)

18 18 of 46© Boardworks Ltd 2007 Can you identify where the magnets and coil of wire would be?

19 19 of 46© Boardworks Ltd 2007

20 20 of 46© Boardworks Ltd 2007 Label the image using the following keywords: Magnet (North) Magnet (South) Coil of wire Slip Rings Brushes Rotating Coil of Wire Magnetic Field Sensitive Ammeter

21 21 of 46© Boardworks Ltd 2007 Generators produce alternating current (AC) Batteries produce direct current (DC) This is the mains supply to our homes at 230V, with a frequency of 50Hz.

22 22 of 46© Boardworks Ltd 2007 MERIT On your national grid diagram, add an explanation to the cables on why the voltage is so high in the electricity cables across the national grid. Use this to help you: science/edexcel/electricityworld/mainselec tricityrev1.shtmlhttp://www.bbc.co.uk/schools/gcsebitesize/ science/edexcel/electricityworld/mainselec tricityrev1.shtml

23 23 of 46© Boardworks Ltd 2007 Task1: Using diagrams, describe how electricity is produced from a battery. P5 Task 2: Using diagrams, describe how electricity is produced from a generator. P5 Task 3: Describe briefly using a flow diagram what the National Grid is and how electrical energy is transferred to our home or workplace. P7 Nearly Completed – need photograph and labels Check your progress...


Download ppt "1 of 46© Boardworks Ltd 2007 Task1: Using diagrams, describe how electricity is produced from a battery. P5 Task 2: Using diagrams, describe how electricity."

Similar presentations


Ads by Google