Week 4 Les 1 2D

• Nask / Techniek
• Middelbare school
• mavo, havo, vwo
• Leerjaar 2

2N

Check in...

No coats or jackets?

No caps or hats?

Phones away?

No headphones/earbuds on/in?

iPad on the table?

Welcome!

Nature and Technology 2 (NTEC2)

How are you feeling today?

1. :)
2. :|
3. :(

When's your birthday?

Planning

Todays objectives

Last weeks homework

Section 2

Objectives

You can name 3 different voltage sources

You can determine the voltage of batteries in series

After this class you can answer the questions of section 1 and 2

Questions §1

Course material: answers are in the text

In practice: Use the text as a guide

Section 2: Voltage sources

What is Voltage?

The force that pushes the electricity around.

Power supplies (voltage source)

Naming and symbols

Voltage -> Volt -> letter U

The voltage is 12 Volt 

U=12V 

Quantity	Symbol	Unit of Measurement	Unit Abbreviation
Current	I	Ampere	A
Voltage	U	Volt	V

Connecting batteries

The rule:

Whenever a plus and a minus are touching -> add the voltages together

a) all plus-minus connected

b) no plus-minus connections

Answering questions

Try to answer the questions of §1 and §2

Can't find the answer? Ask a neighbour or use google!

Time left?

More on voltage (in dutch).

link 

Please use headphones 

Exercises section 1 and 2

Next lesson

Section 3