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Static Electricity Worksheet Answers

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Static Electricity Worksheet Answers Powered By Docstoc
					          Changing Circuits

            Electricity for year 6




    http://www.westwightmiddle.iow.sch.uk/sci/6g/elec.ppt
Thursday, 18 August
                          INDEX                             1
2011
           Index
           lesson 1: Making a class circuit
           lesson 2: Making circuits
           lesson 3: Electric current and safety
           lesson 4: Fiddling with bits of wire
           lesson 5: The brightness of bulb & the speed of motors
           lesson 6: circuit diagrams
           lesson 7: Resistance
           lesson 8: Is electricity dangerous?
           lesson 9: Solving problems
           Lesson 10: Assessment
Thursday, 18 August 2011                            INDEX           2
                      Revision

 Look at section 9 of the study book




Thursday, 18 August
                        INDEX          3
2011
           Lesson 1

                Making a class circuit.




Thursday, 18 August 2011          INDEX   4
           Equipment
            Lengths of wire stripped at both
             ends.
            One light bulb in holder.
            One battery (three cells in a holder).
            One simple switch.
            Handouts.



Thursday, 18 August 2011           INDEX              5
           Objectives

                  Know that a working circuit depends on a
                  complete circuit.


                  Know that electricity flows around a circuit in
                  one direction.



                 Know that a break in a circuit will stop
                 electricity flowing.
Thursday, 18 August 2011                      INDEX                 6
           By the end of the lesson…


                  A careful drawing of the CLASS CIRCUIT.


                   Your best answers to some questions about
                   the CLASS CIRCUIT.



                  Homework: Finish off your answers.
Thursday, 18 August 2011                    INDEX              7
    Assessment

      GOOD                 BETTER                FANTASTIC


      Your answers         Your                  You have
      describe             answers say           used your
      what you             a little              scientific
      found out.           about why             knowledge to
                           things                explain why
                           happened.             things
                                                 happened.
Thursday, 18 August 2011                 INDEX              8
           Round ups

            • This lesson I learnt…
            • What I don’t quite understand is…
            • The bit I did best was…
            • I would like to know more about…



Thursday, 18 August 2011              INDEX       9
           Lesson 2: Making circuits
                Today, you will be making circuits using the
                electrical components.




            Why?
                   To learn what the parts are and how they fit
                   together.


Thursday, 18 August 2011                     INDEX                10
           Equipment list
            Electrical modules
            Crocodile wires
            Battery modules




Thursday, 18 August 2011         INDEX   11
           Components




Thursday, 18 August 2011   INDEX   12
      In your book…

                                   draw




                                   add a
   Both bulbs light up dimly       caption
   because the energy is shared.
Thursday, 18 August 2011           INDEX     13
 Round ups


I know that I must have a complete circuit with no breaks.


I know that a switch makes a break in the circuit to stop
the electricity flowing.


 I know that good connections are important.


Thursday, 18 August 2011              INDEX                  14
           Lesson 3

            To learn about how electricity flows.
            To get some idea about what
             electricity is.
            To learn about electrical safety.




Thursday, 18 August 2011           INDEX             15
           Equipment list.

                  Video: Electricity with Ellie the Electron


                  Animation




Thursday, 18 August 2011                      INDEX            16
           Video


               What’s this video called?




Thursday, 18 August 2011                   INDEX   17
 Key questions
          In which direction did the electricity flow around
          the circuit?

          The electricity flows…


          What is it that actually flows? (What particles?)
          The particles that flow are called…


          What part of the wire does the electricity flow
          through?
               The part of the wire the electricity flows through
               is…
Thursday, 18 August 2011                    INDEX                18
     How well did you do?
     GOOD                   Better
     I was able to answer   I used my scientific
     the questions.         knowledge to answer the
                            questions.

     How will the teacher
     know?                  How will the teacher be
                            sure?


      Level 3               Level 4

Thursday, 18 August 2011        INDEX                 19
                      Lesson 4

               Fiddling with bits of wire




Thursday, 18 August
                                            20
2011
           Equipment
              For pupils working in pairs:
                   • Three short pieces of wire
                   • Light bulb with no holder
                   • A single cell with no holder
                   • A switch with no wires or holder
                   • Handouts
              For demonstration on teacher’s bench
                   •One 12v transformer
                   •Lots of crocodile leads
                   •One light bulb in holder
Thursday, 18 August 2011                                INDEX   21
           Getting started...

                      We will be connecting up a big
                      circuit to the classroom tap but
                      where does the electricity flow?




Thursday, 18 August 2011                INDEX            22
           Objectives
                 To learn exactly where wires connect to
                 bulbs, cells and switches.


                 To get the idea of connecting the
                 components in a circuit.



                  To learn how to add useful captions to your
                  drawings.

Thursday, 18 August 2011                     INDEX              23
To learn exactly where wires connect to bulbs, cells and switches.
To get the idea of connecting the components in a circuit.
To learn how to add useful captions to your drawings.



            A challenge!
             Use the parts to make the bulb light.



             Draw your working circuit.
             Try to make it clear where the wires
             actually connect.

 Thursday, 18 August 2011                                   INDEX    24
To learn exactly where wires connect to bulbs, cells and switches.
To get the idea of connecting the components in a circuit.
To learn how to add useful captions to your drawings.



           Another challenge…
                      Use all three pieces of wire and the
                      switch.


                       Can you make the light work with the
                       switch?


                        Another clear drawing please. Add a
                        caption to describe what the drawing is
                        about.
 Thursday, 18 August 2011                                   INDEX    25
           Testbase
              Testbase worksheet: Work in pairs




           To learn exactly where wires connect to bulbs, cells and switches.
           To get the idea of connecting the components in a circuit.
           To learn how to add useful captions to your drawings.

Thursday, 18 August 2011                                   INDEX                26
To learn exactly where wires connect to bulbs, cells and switches.
To get the idea of connecting the components in a circuit.
To learn how to add useful captions to your drawings.



            Plenary: Green, amber or red?
             Make a simple circuit with a few parts.
             Know where the wires should connect.
             Know what components are.
             Be able to draw clear diagrams.
             Be able to use a caption to describe
              what a diagram is about.
 Thursday, 18 August 2011                       INDEX                27
Thursday, 18 August 2011




       Lesson 5

            The brightness of bulbs and the
            speed of motors



                                              28
           Getting started


              Animation
              Look at page 69 of the STUDY BOOK.




Thursday, 18 August 2011          INDEX        29
Thursday, 18 August 2011


       Objectives
        Learn what affects the brightness of
         a bulb.
        Learn how to change the speed of
         motors.




                             INDEX          30
Thursday, 18 August 2011


           What I am looking for…
             By looking at your drawing and
              writing, I will be able to know what
              you understand.
             Clear drawings that show how the
              components are connected.
             Captions that explain how things
              work.

Learn what affects the brightness of a bulb.   INDEX   31
Learn how to change the speed of motors.
Thursday, 18 August 2011

           Drawings with captions that
           explain.

                      a clear
                     drawing



                   a caption               The bulbs in this circuit are quite dim.
                        that               This is because…
                    explains

Learn what affects the brightness of a bulb.             INDEX                        32
Learn how to change the speed of motors.
Testbase / Revisewise
   Using example questions or bits from
    the Revisewise DVD.
Thursday, 18 August 2011


            How well did you do?
            Fist of five…

              My drawings are very clear. You can
               see what the components are and
               where the wires connect.
              My writing shows that I understand
               how to change the brightness of
               bulbs and the speed of motors.
              I finished my work on time.

Learn what affects the brightness of a bulb.   INDEX   34
Learn how to change the speed of motors.
           Homework
            Revise page 69 of the Study Book and
             start to work through the questions
             on page 70
           Or
            Look at the BBC revision pages for
             electricity.


Thursday, 18 August 2011         INDEX          35
Thursday, 18 August 2011




                             Lesson 6

                           Circuit diagrams

                  This may take two sessions.

                                                36
           Equipment
            Handouts
            Study guides
            Electrical kits
            Electricity table mats




Thursday, 18 August 2011              INDEX   37
           This lesson…
           Objectives                What I am looking for

              To learn the idea        Your drawings are
               of drawing circuits       clear and have
               with proper               labels.
               symbols.                 You are confident
              To learn to make          about making the
               circuits by using         circuits shown in
               circuit diagrams.         the diagrams.


Thursday, 18 August 2011                 INDEX               38
Thursday, 18 August 2011




             Circuit diagrams                                       Use your study
                                                                    guide.

  1.   Look at the diagrams:
       Spot & draw the symbol
       for a battery (more than
       one cell).
  2.   Spot and draw the symbol
       for a lamp (both types).
  3.   Spot & draw the symbols
       for an ordinary switch
       and a push switch.
  4.   Spot and draw the symbol
       for a motor.
  5.   Spot and draw the symbol
       for a buzzer.                      6. Now use the equipment to make these circuits.
                                          Draw them if there’s time.


To learn the idea of drawing circuits with proper symbols.      INDEX                        39
To learn to make circuits by using circuit diagrams.
Thursday, 18 August 2011


             More
             complicated
             circuit diagrams


   Use your study guide.
   Use the electrical modules to try
   these.
   Show your teacher as you
   complete each one.
To learn the idea of drawing circuits with proper symbols.   INDEX   40
To learn to make circuits by using circuit diagrams.
Thursday, 18 August 2011




             Symbols and drawings

        Draw
        proper
        circuit
        diagrams
        for these
        drawings.




To learn the idea of drawing circuits with proper symbols.   INDEX   41
To learn to make circuits by using circuit diagrams.
Thursday, 18 August 2011




             Extending your ability
               Controlling circuits 1
               Controlling circuits 2
               Controlling circuits 3



                                                         Use your study guide.




To learn the idea of drawing circuits with proper symbols.     INDEX             42
To learn to make circuits by using circuit diagrams.
           Homework
            Page 68 of the STUDY BOOK
           Or
            Check out the electricity section of the
             BBC Key Stage 2 web site.
           Or
            Revision pages 34 to 40 in the work book.
           And…
            Complete any unfinished work from this
             section.
Thursday, 18 August 2011             INDEX               43
Thursday, 18 August 2011


             Round ups…
             See Science Simulations DVD of circuit diagrams.
             Then use WHITEBOARDS to draw…


              The symbol for one cell.
              A symbol for a bulb (lamp).
              A symbol for a switch.
              A circuit diagram with a 4½v battery,
               a lamp and a switch.

To learn the idea of drawing circuits with proper symbols.   INDEX   44
To learn to make circuits by using circuit diagrams.
           Lesson 7: Resistance




Thursday, 18 August 2011   INDEX   45
   What are we doing?
   Objectives                 What I am looking for
      To learn what             Working as a team
       happens when               with different
       electricity flows          people.
       through long wires.       Writing a sentence
                                  about the
      To learn how to            relationship between
       write a relationship       the length of the
       answer.                    wire and the
                                  brightness of the
                                  bulb.
Thursday, 18 August 2011              INDEX              46
           Equipment
              BBC Revisewise
               DVD
              Electrical kits




Thursday, 18 August 2011         INDEX   47
                                          To learn what happens when
                                          electricity flows through
           Relationships                  long wires.
                                          To learn how to write a
                                          relationship answer.

           Using BBC Revisewise DVD


              What is the relationship between the
               number of cells and the speed of a motor?
              How does the number of bulbs affect the
               brightness of the bulbs?
              What is the relationship between the
               sharpness of a saw and the time it takes to
               cut wood?
              How does the length of a car journey
               affect the amount of fuel you burn?
Thursday, 18 August 2011                INDEX                   48
                                    To learn what happens when
                                    electricity flows through
                                    long wires.

           Round ups…
                                    To learn how to write a
                                    relationship answer.




            I am confident about how to answer
             relationship questions.
            I can describe how the length of the
             wire affects the brightness of the
             bulb.


Thursday, 18 August 2011          INDEX                   49
                      Lesson 8

               Is electricity dangerous?




Thursday, 18 August
                                           50
2011
           Equipment
              Handouts
              van de graf generator with mains cable and accessory kit
              Materials kits
              Croc leads
              6v bulb in holders
              Battery modules
              Conductivity worksheet
              Mains plug (altered to prevent it from being plugged in)
              BBC Revisewise DVD




Thursday, 18 August 2011                         INDEX                    51
           Starter: How powerful is
           electricity?
            image 1: illustration of van de graf generator



            Demonstration of a van de graf generator



                           You will learn much more about static
                           electricity in year 7


Thursday, 18 August 2011                      INDEX                52
           Objectives
            To learn about insulation, conductors
             and short circuits.
            To learn about the dangers of
             electricity.



            pause



Thursday, 18 August 2011           INDEX             53
                fire


                           shock
Thursday, 18 August 2011       INDEX   54
           Mains plugs
             Inside a mains plug.


              Key questions

                   Answer these questions as full sentences. (Some might need
                   more than one sentence.)
                           •Why are wires covered in plastic?
                           •The long and thin wire we used last lesson was not
                           covered in plastic. Why was this safe?
                           •Why is the outside part of a plug made from plastic?
                           •Why should you never touch electrical things with wet
                           hands?
Thursday, 18 August 2011                                  INDEX                     55
          Short circuits
           What is a short circuit?
           What happens when you get one?


            image 1           image 3            image 5
            image 2           image 4            image 6

            Sometimes, the live and neutral wires come in the
            direct contact because of damaged wiring. When this
            happens, there is nothing to control the current and a
            very large current flows. This is known as Short Circuit.


Thursday, 18 August 2011                       INDEX                    56
            Your teacher will show you what happens when you get a
            short circuit.

            Key Questions:

                 Answer as full sentences please. (Try not to use the
                 word ‘it’).


                      •What happened to the thin wire when a fault
                      occurred?
                      •Apart from shocks, why could electrical faults be
                      very dangerous?
                      •Explain how the fuse works to keep you safe when a
                      fault occurs.
                      •Why should you not use water on electrical fires?


Thursday, 18 August 2011                           INDEX                    57
           Input
               BBC Revisewise DVD:
               Electricity / Electrical conductors &
               insulators.




Thursday, 18 August 2011                    INDEX      58
            Conductors & insulators: PRACTICAL

                 .Touch the two loose ends onto the metal parts of some
                 scissors.
                 .Why does the bulb light up? What does this tell you about
                 metal?
                 .Now try the same test on a block of plastic. What do you
                 know now about plastic?
                 .Now try the materials to see if they carry electricity.
                 Make a table of results and classify each material as:
                                    A good conductor
                                    A weak conductor
                                      An insulator



Thursday, 18 August 2011                           INDEX                     59
          Plenary
          Work in pairs using a mini whiteboard.


            Draw what could happen if you get a
             short circuit.
            What is the name of all materials
             that carry electricity well?
            What is the name of an electrical
             insulator we use a lot?


Thursday, 18 August 2011          INDEX            60
                        Lesson 9

                      Solving problems




Thursday, 18 August
                                         61
2011
           Objectives
            Learn how to use components and
             wires to solve problems.
            Learn how to draw circuit diagrams of
             circuits you have made.




Thursday, 18 August 2011          INDEX         62
           Expectations
            Work quickly to complete the whole
             assignment.
            Draw accurate circuit diagrams.
            Test circuits to find faults.




Thursday, 18 August 2011         INDEX            63
 Solving problems: Part 1
 An easy one to start with. There are three lights in a kitchen. Design
 and make a circuit where they all come on with one switch.

 1. Remove one bulb from its holder. Do the other two stay on? (They should do!)
 2. Draw the circuit as a standard circuit diagram. Add a caption to explain the
 function of the circuit.
 3. Measure the current with an ammeter. Does the current change if one bulb is
 removed? Add a caption to explain this part.



                        There are three lamps in a shed. Design and build a circuit that allows each
                        lamp to be switched on and off separately.

                        1. Draw the circuit as a standard circuit diagram. Add a caption to explain the function of
                        the circuit.
                        2. Measure and record the current with one, two and three bulbs switched on. Record
                        your results and explain any changes.




Thursday, 18 August 2011                                                  INDEX                                   64
   Solving problems: Part 2
  Charles Slime, the well known ‘smoothy’ likes to have ‘mood’
  lighting in his sumptuous living room. Design and build the circuit
  so that he can dim his table lamp.

  1. Draw the circuit as a standard circuit diagram. Add a caption to explain the
  function of the circuit.
  2. Measure the voltage across the bulb as the potentiometer is turned.
  Record your observations.
  3. Measure the voltage across the potentiometer as it is turned. Record your
  observations.
  4. Finally, measure the voltage across the bulb and potentiometer together as the potentiometer is
  turned. Record your observation.
  5. Conclude your findings for parts 2, 3 and 4 above.




Thursday, 18 August 2011                                         INDEX                                 65
           Evaluation
                                           fist of five


            I worked quickly and finished all the
             work.
            My drawings are accurate and clear.
            I was able to find and mend faults.



Thursday, 18 August 2011           INDEX              66
         Lesson 10: Assessment

                      Unit test




Thursday, 18 August
                        INDEX     67
2011
           Equipment
              Unit test papers: One per student.




Thursday, 18 August 2011            INDEX           68

				
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