1.3 & 1.1 Accuracy & Conversions & 1.1

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  
1 / 25
volgende
Slide 1: Tekstslide
Natuurkunde / ScheikundeMiddelbare schoolvmbo b, k, t, havo, vwoLeerjaar 1-3

In deze les zitten 25 slides, met interactieve quizzen en tekstslides.

Onderdelen in deze les

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  

Slide 1 - Tekstslide


Get your things please:                                

Slide 2 - Tekstslide

1.3 & 1.1 Accuracy, Conversions
  • Questions about the homework?
  • Quiz
  • Conversion of units
  • Accuracy
  • Making some exercises of 1.1
  • Don't lose your marbles!
  • Formative Quiz

Slide 3 - Tekstslide

Homework: Questions?
The homework was:

  • Read chapter 1.3

  • Do exercises 26, 32, 33, 30

Slide 4 - Tekstslide

Homework: Questions??
  • Homework was:

  • Read chapter 1.3
  • Do exercises 26, 32, 33, 30

Slide 5 - Tekstslide

A graded cylinder has it's highest bar set at 1000ml.
What is the measuring range?
A
1 L
B
1 litre
C
0 - 1000ml
D
1000 ml

Slide 6 - Quizvraag

Exchange:
The following person may explain:







V5
V2

Slide 7 - Tekstslide

What is the typical scale spacing of a home use thermometre?
A
-20 °C to 50 °C
B
1
C
0,1
D
1 °C

Slide 8 - Quizvraag

Exchange:
The following person may explain:







V5
V2

Slide 9 - Tekstslide

How many kg are in a gram?
A
1000 kg
B
0,001 kg
C
1000 g
D
0,001 g

Slide 10 - Quizvraag

Exchange:
The following person may explain:







V5
V2

Slide 11 - Tekstslide

From mega to micro
  • mega                   M                 1.000.000                  million
  • kilo                        k                           1.000                   thousand
  • deci                      d                                   0,1                one tenth               1/10
  • centi                    c                                    0,01             one hundredth    1/100
  • milli                      m                                  0,001           one thousandth  1/1000
  • micro                  µ                                    0,000 001  one millionth        1/1.000.000

Slide 12 - Tekstslide

Learning objectives
  • You can explain why each measurement has an inaccuracy.     (Except counting numbers)

  • You can name three ways of expressing the amount of matter.

Slide 13 - Tekstslide

Measurement
accuracy

How accurate
can you read out the
temperature here?

26°C?  26,0°C? 26,00°C?        

Slide 14 - Tekstslide

Measurement
accuracy

I would say:

26,0°C +/- 0,5°C

which means

in between 25,5°C and 26,5°C              

Slide 15 - Tekstslide

Measuring: Always inaccuracy

Slide 16 - Tekstslide

Slide 17 - Tekstslide

How much mass of air is there in this classroom?
.
  1. Discuss what you need to calculate and measure this

  2. Make 5 groups of 2 or 3 persons

Slide 18 - Tekstslide

How much mass of air is there in this classroom?
.
  1. Group 1: Measures the width or the room in m.
  2. Group 2: Measures the length/depth of the room in m.
  3. Group 3: Measures the height of the room in m.

  4. Group 4: Searches internet for the air density
    double check: find it twice on different websites in the unit of kg/m³

    5. Collects all data from the groups, writes it on the board
    and calculates mass in kg.

Slide 19 - Tekstslide

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

Copy the table of conversions from Mega to micro

Do exercises
1, 2, 3, 4, 5, 6, 7, 8 of Ch1.1
Homework = 1,2,3,4,5
12:30
timer
10:00

Slide 20 - Tekstslide

Don't loose your marbles!
12:43

Slide 21 - Tekstslide

I am measuring some chocolate on
a digital scale in grams.

What is correct?
A
I've measured exactly 412 g.
B
I've measured between 411,9 g and 412,1 g.
C
I've measured 412,0 g.
D
I've measured between 411,5 g and 412,5 g.

Slide 22 - Quizvraag

I want to bring my marbles on an airplane trip, but I don't know if I'm allowed to bring them on the plane.
What should I measure?
A
The number, without a unit
B
The mass in the unit of kg
C
The volume in L or in m³

Slide 23 - Quizvraag

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

Slide 24 - Tekstslide

Scale spacing
&
Measuring range

Slide 25 - Tekstslide