Ch 1 Natural science

• Natuurkunde
• Middelbare school
• havo
• Leerjaar 2

1.1 A new subject

Science is about gaining knowledge and using this  in everyday life.

Three examples of natural science are:

- biology (living nature; plants, animals, the human body)

- chemistry (changes are permanent, e.g. burning wood)

- physics ( changes are temporary in non living nature; e.g. melting ice)

examples of physics

air pressure

light

sound

movement

temperature

gravity

examples of chemistry

baking

cooking

fire

Fire works

Quantity

Quantity: a property that you can measure

 

Examples: time, length mass, speed

Units

Unit: a quantity of size that is used for expressing things. 

The unit is what gives the number a meaning.

E.g. Melissa’s height is 154 centimeters

The distance to school is 5 kilometer

Abbreviations

kilograms ( the abbreviation is kg)

meter (abbreviaton is m)

kubic centimeter (abbreviation is cm3)

etc.

Wat is een grootheid en wat is een eenheid?

Quantity

Unit

Length

Square

Seconds

kilogram

Speed

centimeter

Hour

Time

kilometer

Weight

hectare

40 mm=.......m

1. 0,004
2. 0,04
3. 4
4. 400

8 m = ........ km

2​[?]​​

2​​​

1. 0,000008
2. 0,008
3. 8000
4. 8000000

Research report - structured

1. Research question
2. Hypothesis / Prediction
3. Apparatus Beware: Apparatus means 'inrichting', 'benodigdheden',
   NOT 'apparaat'!
4. Method
5. Observations
6. Results & Conclusion
7. Suggestions

Research report - structured

0. Title, names, class, date

1. Research question: A question that describes what you want to find out.
   
2. Hypothesis / Prediction: Describe what you predict the answer to be.
3. Apparatus: Describe what you need.
4. Method: Describe what you will do.
5. Observations: Describe what you see, hear, smell, taste, feel.
6. Results & Conclusion: Try to explain the observations.
   Answer the research question if possible.
7. Suggestions: You can make suggestions about further research.

Quantities & Units

quantity	symbol	unit	abbreviat.	m. instrum.
mass	m	kilogram	kg	scales
volume	V	litre	L	graduated cylinder
length/distance	l / s	metre	m	ruler, measuring tape
temperature	T	degree Celcius	°C	thermometer
time interval	t	second	s	clock, stopwatch
number	-	-	-	counter

What to do next:

Please try the following:

- 1.1 Introduction

When this is done:

- 1.1 A new subject

- Last but not least: make 2, 5, 6, 8, 9 from 1.2