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Practice ratio tables
Practice ratio tables
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Slide 1:
Slide
Science
Middelbare school
havo
Leerjaar 1
This lesson contains
15 slides
, with
interactive quizzes
and
text slides
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Items in this lesson
Practice ratio tables
Slide 1 - Slide
Kilometer is a ...
A
Quantity
B
Unit
Slide 2 - Quiz
Mass is a
A
quantity
B
unit
Slide 3 - Quiz
Quantity
Unit
mm
time
kilogram
mass
volume
litre
length
minute
Slide 4 - Drag question
25
..........
0,5
1
km/h
distance (km)
time (h)
the speed = ..........
Slide 5 - Drag question
The unit for speed is
A
s
B
v
C
m/s
D
km/min
Slide 6 - 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 7 - Quiz
White board challenge
every team gets 2 white boards
answer the questions correctly using a ratio table
Slide 8 - 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 9 - 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 10 - 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 11 - 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 12 - 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 13 - 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 14 - 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 15 - Slide
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