2-8 Current and voltage (2.3)

Current and voltage
(p. 80)
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 (10 min)
- Working by yourself 
    (15 min)
- Corrections (5 min)
- PHET simulation (10 min)
- Conclusion (5 min)
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Slide 1: Slide
NatuurkundeMiddelbare schoolhavo, vwoLeerjaar 2

This lesson contains 22 slides, with interactive quizzes and text slides.

time-iconLesson duration is: 50 min

Items in this lesson

Current and voltage
(p. 80)
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 (10 min)
- Working by yourself 
    (15 min)
- Corrections (5 min)
- PHET simulation (10 min)
- Conclusion (5 min)

Slide 1 - Slide

                       Lesson goals:
- Explain what happens with current 
    in a parallel and in a series circuit.

- Explain what happens with the voltage in a parallel and in a series circuit.

Slide 2 - Slide

Magnitude of current
The magnitude of the current is the ammount of electrons that pass through a wire at a given point per second.

A power source is like a pump.

Slide 3 - Slide

Slide 4 - Slide

Slide 5 - Slide

multiple plug socket

  • Parallel connection
  • Voltage is the same in each branch. 
  • Current in the branches must be added to get the total current.

Slide 6 - Slide

Series circuit
- Current is the same 
   everywhere
- The voltage divides over 
   the components
Parallel circuit
- Current divides over the
   branches
- The voltage is the same 
    in each branch

Slide 7 - Slide

The current is measured in volt.
A
True
B
False

Slide 8 - Quiz

All appliances in a house are connected in parallel.
A
True
B
False

Slide 9 - Quiz

If a greater current passes through a lightbulb, the light will be brighter.
A
True
B
False

Slide 10 - Quiz

The more appliances you connect to a multiple plug socket, the greater the current will be.
A
True
B
False

Slide 11 - Quiz

One milliamp equals one thousand amps.
A
True
B
False

Slide 12 - Quiz

In a parallel circuit every appliance is connected directly to the positive and negative terminals of the power supply.
A
True
B
False

Slide 13 - Quiz

If the batteries are alkaline batteries, what is the total voltage?
A
1,5 V
B
3 V
C
4,5 V
D
6 V

Slide 14 - Quiz

If the total voltage over the batteries is 9V, and the voltage across R1 = 2,5V, and over the parallel connection is 4V, what is the voltage over R2?
A
1,5 V
B
2,5 V
C
2,0 V
D
5,0 V

Slide 15 - Quiz

If the current through R1 is 7 A, and R3 and R4 are identical resistances, what will the current through R3 be?
A
3,5 A
B
7 A
C
14 A
D
2,3 A

Slide 16 - Quiz

Now do  50 up to 56 (p. 81)
WHEN YOU ARE DONE: Play with the PHET simulation on the folowing page 
timer
15:00
RULES:
  • Write in your writingbook


  • Use: Your textbook
  • No discussion

  • In 15 minutes we will discuss the answers

Slide 17 - Slide

Slide 18 - Link

Slide 19 - Slide

Slide 20 - Slide

Slide 21 - Slide

Conclusion
Series circuit
Voltage splits
Parallel circuit
Voltage is the same

Slide 22 - Slide