Introducing Speed
Presentation
•
Mathematics
•
7th - 10th Grade
•
Practice Problem
•
Medium
Karen Gray
Used 7+ times
FREE Resource
33 Slides • 10 Questions
1
Introducing Speed
2
What is Speed?
3
Speed is ...
how FAST you are going
4
Speed is ...
how far you go in
one unit of time
(for example an hour)
5
If I travel
50 miles in one hour...
6
If I travel
50 miles in one hour...
my speed = 50 miles per hour
(or 50 mph)
7
If I travel
80 miles in one hour...
8
If I travel
80 miles in one hour...
my speed = 80 miles per hour
(or 80 mph)
9
If I travel
100 miles
in TWO hours...
10
If I travel
100 miles
in TWO hours...
that means I've travelled
an average of
50 miles each hour...
(100 divided by 2 = 50)
11
If I travel
100 miles
in TWO hours...
that means I've travelled
an average of
50 miles each hour...
So my average speed = 50mph
12
If I travel
150 miles
in TWO hours...
13
If I travel
150 miles
in TWO hours...
that means I've travelled
an average of
75 miles each hour...
(150 divided by 2 = 75)
14
If I travel
150 miles
in TWO hours...
that means I've travelled
an average of
75 miles each hour...
So my average speed = 75mph
15
If I travel
180 miles
in THREE hours...
16
If I travel
180 miles
in THREE hours...
that means I've travelled
an average of
60 miles each hour...
(180 divided by 3 = 60)
17
If I travel
180 miles
in THREE hours...
that means I've travelled
an average of
60 miles each hour...
So my average speed = 60mph
18
Speed is how far in
ONE HOUR
19
Speed is how far in
ONE HOUR
so you need to divide
the distance travelled
by the time taken
20
Multiple Choice
If I travel 120 miles in 2 hours
what was my average speed?
21
Multiple Choice
If I travel 200 miles in 4 hours
what was my average speed?
22
Multiple Choice
23
Multiple Choice
If I travel 150 miles in 2 hours
what was my average speed?
24
Multiple Choice
25
What about if I travel
for LESS than an hour?
26
Remember
Speed is how far in
ONE HOUR
27
If I travel 2 miles
in 30 mins..
28
If I travel 2 miles
in 30 mins..
then, if I kept going at the same rate, I would travel 4 miles in an hour...
29
If I travel 2 miles
in 30 mins..
then, if I kept going at the same rate, I would travel 4 miles in an hour...
(because 2x30 = 60 mins = 1hr)
30
If I travel 2 miles
in 30 mins..
then, if I kept going at the same rate, I would travel 4 miles in an hour...
so my SPEED = 4 mph
31
If I travel 5 miles
in 15 minutes ...
32
If I travel 5 miles
in 15 minutes ...
then, if I kept going at the same rate, I would travel 20 miles in an hour...
(because 4x15 = 60 mins = 1hr)
33
If I travel 5 miles
in 15 minutes ...
then, if I kept going at the same rate, I would travel 20 miles in an hour...
so my SPEED = 20 mph
34
If I travel 10 miles
in 10 minutes ...
35
If I travel 10 miles
in 10 minutes ...
then, if I kept going at the same rate, I would travel 60 miles in an hour...
(because 6x10 = 60 mins = 1hr)
36
If I travel 10 miles
in 10 minutes ...
then, if I kept going at the same rate, I would travel 60 miles in an hour...
so my SPEED = 60 mph
37
Multiple Choice
If I travel 3 miles in 30 minutes
What is my average speed?
(in miles per hour)
38
Multiple Choice
If I travel 4 miles in 30 minutes
What is my average speed?
(in miles per hour)
39
Multiple Choice
If I travel 2 miles in 15 minutes
What is my average speed?
(in miles per hour)
40
Multiple Choice
If I travel 3 miles in 15 minutes
What is my average speed?
(in miles per hour)
41
Multiple Choice
If I travel 2 miles in 20 minutes
What is my average speed?
(in miles per hour)
42
Got it??
43
Remember
Speed is just
how far in
ONE HOUR
Introducing Speed
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