calculation week - composite quantities

- calculation week - 
composite quantities
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Slide 1: Slide
Nask / BiologieMiddelbare schoolhavo, vwoLeerjaar 1

This lesson contains 28 slides, with interactive quizzes and text slides.

time-iconLesson duration is: 60 min

Items in this lesson

- calculation week - 
composite quantities

Slide 1 - Slide

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 2 - Slide

Kilometer is a ...
A
Quantity
B
Unit

Slide 3 - Quiz

Mass is a
A
quantity
B
unit

Slide 4 - Quiz

Quantity 
Unit
mm
time
kilogram
mass
volume
litre
length
minute

Slide 5 - Drag question

What does composite mean?
A
combined
B
simple
C
to make
D
to write a song

Slide 6 - Quiz

name three composite quantities

Slide 7 - Mind map

composite quantities
speed
v
meter per sec
m/s
or km/h
concentration
c
gram per liter
g/L 

density
p (rho)
gram per cubic centimeter 
g/cm3

Slide 8 - Slide

Name the two quantities that compose SPEED.

Slide 9 - Open question

Name the two quantities that compose concentration.

Slide 10 - Open question

Name the two quantities that compose density.

Slide 11 - Open question

what the first step of
calculating with a ratio table?

Slide 12 - Mind map

What mustn't you forget
when calculating with a ratio table?

Slide 13 - Mind map

NO LAPTOP! 
Just your pencil case and calculator!

Slide 14 - Slide

checklist ratio tables
1) Did you collect the data from the question?
2) Does your ratio table start with QUANTITIES - UNITS?
3) Is distance found at the top? Or is mass found at the top?

4) Did you add your calculations at the bottom AND the top?
     Do not round off intermediate steps, leave them on your calculator!

5) Did you write down the answer to the question with a number and a unit? 

Slide 15 - Slide

1hvt - to do today 
materials needed

20 mins

10 mins

finished? 
Pencil case! no laptop!
Don't forget your ruler+calculator tomorrow!
Finish the Small Test. Do 4 assignments!
The Bonus Question is still bonus! A 5th assignment is not. 
Check your answers to the Small Test!
Hand in your Small Test. 
Finish your reader SCIENTIFIC METHOD!
Or read from your book. 
IMPORTANT you also have Thursday to finish the reader. 

Slide 16 - Slide

25
..........
0,5
1
km/h
distance (km)
time (h)
the speed = ..........

Slide 17 - Drag question

The unit for speed is
A
s
B
v
C
m/s
D
km/min

Slide 18 - Quiz

Lois runs 75 meters in 15 seconds. What is her average speed in m/s?
A
0,2 m/s
B
0,5 m/s
C
0,4 m/s
D
5 m/s

Slide 19 - Quiz

White board challenge
every team gets 2 white boards
answer the questions correctly using a ratio table

Slide 20 - Slide

Question 1
Bert runs a total of 60 kilometers in 3,5 hours. 
Calculate his speed in km/h.
Use a ratio table to answer this question

Slide 21 - Slide

ANSWER 1
1. distance = 60 km, time = 3,5 hours
2. speed = ........... km/h
3.  converting units: - 
4. 


5. answer:    speed = 17,1 km/h
distance (km)
60
60:3,5 = 17,1
time (h)
3,5
1

Slide 22 - Slide

Question 2
Simone drives 170 kilometers in 3 hours and 44 minutes.
Calculate her speed in km/h.
Use a ratio table to answer this question

Slide 23 - Slide

ANSWER 2
1. distance = 170 km, time = 3 hours and 44 minutes
2. speed = ........... km/h
3. converting units: 3 hours = 180 min     180 + 44 = 224 min
4.


5. answer: speed =   45,54    km/h


distance (km)
170
170:224 = 0,7589
0,7589x60 = 
time (min)
224
1
60
never round up in your calculator!

Slide 24 - Slide

Question 3
Rob rides his bike. His speed is 28 km/h.
He drives for 46 km.
How long is he driving?
Use a ratio tabel to answer this question.

Slide 25 - Slide

ANSWER 3
1. distance = 46 km, speed = 28 km/h
2. time = ........... hours
3. converting units: - 
4.


5. answer: time =  1,64 h


distance (km)
28
1
46
time (h)
1
1:28 = 0,0357
0,0357 x 46 = 1,64
never round up in your calculator!

Slide 26 - Slide

Question 4
Aliesha is drving in her car. Her speed is 53 km/h.
She drives for 7 minutes.
How far did she drive?
Use a ratio tabel to answer this question.

Slide 27 - Slide

density questions

Slide 28 - Slide