2-7 What is electricity (2.3)

What is electricity 
(p. 77)
What you need:
- Textbook, writingbook, iPad
- Pen, pencil, geotriangle
- Calculator


Schoolbags in the cuboard
Phones in the phonebag
Bluetooth 
- ON
- VPN off
    Lesson today:
- Lesson goals (5 min)
- Content (15 min)
- Working by yourself
    (20 min)
- Corrections (8 min)
-  Conclusion (2 min)
1 / 15
suivant
Slide 1: Diapositive
NatuurkundeMiddelbare schoolhavo, vwoLeerjaar 2

Cette leçon contient 15 diapositives, avec diapositives de texte.

time-iconLa durée de la leçon est: 50 min

Éléments de cette leçon

What is electricity 
(p. 77)
What you need:
- Textbook, writingbook, iPad
- Pen, pencil, geotriangle
- Calculator


Schoolbags in the cuboard
Phones in the phonebag
Bluetooth 
- ON
- VPN off
    Lesson today:
- Lesson goals (5 min)
- Content (15 min)
- Working by yourself
    (20 min)
- Corrections (8 min)
-  Conclusion (2 min)

Slide 1 - Diapositive

                       Lesson goals:
- Explain what electricity is.

- Draw simple circuit diagrams.

Slide 2 - Diapositive

An electric circuit
  • Electricity only flows in a closed
        circuit.
  • An electric circuit at least has:
       - A power source,
       - an electrical appliance,
       - connecting wires (copper)
Switch off: If the currecnt is interupted somewhere.

Slide 3 - Diapositive

Current
  • Current: the ammount of electricity
        that flows in a circuit.
  • The current is the same size 
        everywhere in a series connection.
you could say that a client pays a powerstation for 'pumping enegry'. Technically they dont make elektricity.

Slide 4 - Diapositive

The circuit diagram
To draw a circuit diagram we use symbols for the various components. Each component has its own symbol.

Slide 5 - Diapositive

Circuit diagram
  • The symbols are connected  
        with straight lines.
  • These straight lines are made 
        with a geotriangle.
  • Circuit diagrams are drawn 
        with a pencil.

Slide 6 - Diapositive

Circuit diagram of a torch

Slide 7 - Diapositive

What is actually flowing?
Electrons
  • These are electrically charged particles
  • they are very small
When there is lightning and with 
a plasma light, you can see the 
electrons.

Slide 8 - Diapositive

Representation of the flow of an electric current.

Slide 9 - Diapositive

Now do  42-48 (p79) 
WHEN YOU ARE DONE: Play with the simulation on the next page
timer
20:00
RULES:
  • Write in your writingbook


  • Use: Your textbook
  • No discussion

  • In 20 minutes we will discuss the answers

Slide 10 - Diapositive

Slide 11 - Lien

Slide 12 - Diapositive

Slide 13 - Diapositive

Slide 14 - Diapositive

Conclusion
  • Electricity is the flow of electrons.
  • For the flow of electricity we need 
        a power source and a closed circuit. 
  • You draw an electric circuit with a circuit diagram.
  • A conductor allows an electric curent to pass through and an insulator prevents the flow of current. 

Slide 15 - Diapositive