6.4 Elek. deel 1 - Repetition circuits & Start 6.4 Safety

• Natuurkunde / Scheikunde
• Middelbare school
• vmbo b, k, t, havo, vwo
• Leerjaar 1-3

Regels van orde

1e keer:  Waarschuwing --> Maximaal 3 namen op het bord

2e keer: Kleine schrijfopdracht op de gang

3e keer: Eruit, naar Loket 21

Nooit! 

Geluid uit telefoons / Oordopjes in 
Gooien
Eten/drinken 

Mutsen op / Jassen aan / Tassen op tafel  

Please get your stuff:

Electric circuits & Safety

Today

• Quiz about before holiday
• Homework: Filling the table
• Two exercises + answers
• Demo switchboard at home: Safety

Learning objectives

• You can explain the properties of of voltage and current in a parallel circuit and a series circuit.
  
  
• You can explain the types of safety measures taken in your domestic electricity installation.

Which lamps shine brighter?

Why do the parallel lamps shine brighter?

Ammeter & Voltmeter

Circuits: Quiz Questions!

Current

Charge

Voltage

Closing the circuit

Good conductor

Good insulator

Homework: the table

Phet

circuit	V over 1 lamp (voltage)	total I (current)
1 lamp 1 battery	9 V	0,9 A
2 lamps series, 1 battery		0,45 A
2 lamps parallel, 1 battery		1,80 A
1 lamp, 2 batteries in series
1 lamp, 2 batteries in parallel

Questions about the homework?

Homework was:
Make exercises 20, 21, 22, 23, page 178 

30, 31, 32, 34, page 183

Making a few excercises

Try it yourself, and feel free to quietly consult your neighbour.

Do exercises
 33 & 40 page 183/184

 Done? Do 30, 31, 32, 34

                                   

until: 13:45 

Check the answers

exercises

 33 & 40 page 183/184

 

                                   

The domestic installation

Making a few excercises

Try it yourself, and feel free to quietly consult your neighbour.

Do exercises
 42, 43, 44 page 188

Done? Continu with 45 onwards

                                   

until: 14:15

Exchange:
The following person may explain:

V5

V2