Chapter 15 Time And Temperature Worksheet Page 17
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TIME AND TEMPERATURE (Chapter 15)
Example 11
Self Tutor
How far would you travel in 5 hours at an average speed of
96 km per hour?
Distance = speed £ time
= 96 £ 5
= 480 km
If you find it difficult to
remember this formula,
think of a simple
FINDING TIME TAKEN
example like this one.
To travel 200 km at 100 km per hour, it would take us 2 hours.
distance
200
= 2
Notice that
time
100
speed
distance
time taken =
So,
average speed
Example 12
Self Tutor
How long would it take to travel 300 km at 75 km per hour?
distance
time =
speed
300
=
75
= 4 hours
EXERCISE 15G
1
Find the average speed of a vehicle which travels:
540 km in 6 hours
840 km in 12 hours
a
b
664 km in 8 hours
846 km in 9 hours.
c
d
If a vehicle is travelling at 90 km per hour, find how far it will travel in:
2
7 hours
5 hours
10 hours
a
b
c
24
3:5 hours
11 hours 24 mins
Hint: 24 min =
d
e
hours
60
3
How far would you travel in:
3 hours at an average speed of 85 km per hour
a
8 hours at an average speed of 110 km per hour
b
1
4
hours at an average speed of 98 km per hour
c
2
2 hours 15 mins at an average speed of 76 km per hour?
d
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