Lesson 2 — Static electricity

Elecricity
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Slide 1: Slide
NaskMiddelbare schoolhavo, vwoLeerjaar 2

This lesson contains 20 slides, with text slides and 3 videos.

time-iconLesson duration is: 45 min

Items in this lesson

Elecricity

Slide 1 - Slide

Slide 2 - Video

Static electricity

Slide 3 - Slide

This lesson
  • Quick recap – Static electricity
  • Overview period 4
  • The Homework assignment
  • Electric circuits

Slide 4 - Slide

Learning goals
  •  You can explain in your own words what is meant by static electricity.
  • You can explain in simple terms what electricity is.
  • You can explain how an electric circuit works.
  • You can draw a circuit diagram in the correct way

Slide 5 - Slide

The learning goals P4

Slide 6 - Slide

Learning goals P4
  • Explain what electricity is in simple terms.

  • Name the two types of charges and how they interact with each other. 

  • Explain what is meant by an electric circuit, and be able to draw circuit diagrams.

  • Explain what is meant by current, voltage and resistance in your own words.

  • Describe the relationship between current, voltage and resistance.

  • Explain what is meant by power and be able to do calculations on power. 

Slide 7 - Slide

The paragraphs we will cover in period 4
  • §9.1 electrostatic phenomena
  • §9.4 Electric circuits
  • §9.5 Current
  • §9.6 + §9.7 + §9.8 Electric circuits
  • §9.9 Voltage
  • Extra material about Resistance

Slide 8 - Slide

What is expected of you?
  • Study the paragraphs.
  • Make several worksheets
  • Do one or two practicals.
  • Learn two new formula's.
  • Do the homework.
  • Ask questions if you don't understand something.

Slide 9 - Slide

The homework assignment

Slide 10 - Slide

Slide 11 - Video

  • Ancient Greeks observed: A piece of amber, when rubbed with fur can pick up pieces of straw.  
  • The word for amber was 'Electron'. This effect is where the word electricity comes from.
  • In 1600 William Gilbert found out other objects can do the same. He called these electrics, they poses the quality of electricity. Sometimes electrics repel, sometimes they attract.
  • Benjamin Franklin likened the effect of electrifying and de-electrifying to charging and discharging a gun.  
  • When many discharging devices are combined you get a larger shock. This was the start of the invention of the battery.

  • Later the discovery of electrons explain what was really going on.
  • Objects that are positively charged lack electrons.
  • Objects that are negatively charged gained electrons.

Slide 12 - Slide

Electricity is:
the flow of electrons from a negatively charged object to a positively charged object.

Slide 13 - Slide

Slide 14 - Slide


Electric circuits

Slide 15 - Slide

Slide 16 - Slide

Exercise
a) Draw a circuit diagram for the circuit in the image below
b) Draw a circuit diagram for the circuit of a doorbel with a light that turns on when the bell is rings. 

Slide 17 - Slide

Slide 18 - Video

Homework
  • Watch the following two video's

  • Do the workbook exercises of 
paragraph 9.1 and paragraph 9.4

Slide 19 - Slide

Learning goals
  •  You can explain in your own words what is meant by static electricity.
  • You can explain in simple terms what electricity is.
  • You can explain how an electric circuit works.
  • You can draw a circuit diagram in the correct way

Slide 20 - Slide