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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 / Scheikunde
Middelbare school
vmbo b, k, t, havo, vwo
Leerjaar 1-3
In deze les zitten
25 slides
, met
interactieve quizzen
en
tekstslides
.
Start les
Bewaar
Deel
Printen
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?
.
Discuss what you need to calculate and measure this
Make 5 groups of 2 or 3 persons
Slide 18 - Tekstslide
How much mass of air is there in this classroom?
.
Group 1: Measures the
width
or the room in m.
Group 2: Measures the
length/depth
of the room in m.
Group 3: Measures the
height
of the room in m.
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
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