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INGREDIENTS
18
unit section 2 : calculating speed
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we saw in the previous section that speed
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how long does the journey take
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b how long does the journey take
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work out the answer to each of these questions then click on the button marked
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how long does it take him
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button to find out whether you have answered correctly. if you are right
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on to clear your original answer and have another go
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how long does janet's journey take
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an athlete run long distances at 4 metres
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how long does it take him to row 70m
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b how long does it take him to row 800m
2
you have now completed unit 18 section
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the questions in this section
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there were questions where you used the tell me button
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here to fill out a very short form which allows you make comments
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example questions
1
example question
45
jane drives at an average speed of mph on a journey of 135 miles
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to find a time
135
miles ÷ 45 mph = 3 hours
2
example question
8
chris cycles at an average speed of mph
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if he cycles
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to find a distance
8
mph × 6.5 hours = 52 miles
3
example question
351
nikki has to travel a total of miles. she travels the first 216 miles in 4 hours
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what is her average speed
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to find average speed
216
miles ÷ 4 hours = 54 mph
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her average speed is the same
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to find time
351
miles ÷ 54 mph = 6.5 hours
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practice questions
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to see whether you are correct
1
practice question
45
jim travels miles at 15 mph
2
practice question
4
jemimah walks at mph
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how far does she walk
3
practice question
81
jenny drives at a constant speed. in the first three hours she travels miles
5
how far will she have travelled after hours
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exercises
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work out the answers to the questions below and fill in the boxes. click on the
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then will appear and you should move on to the next
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question. if appears then your answer is wrong. click
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if you can't work out the right answer then click on
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to see
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the answer
1
question
3
hours at 20 mph
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miles
8
b hours at 60 mph
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miles
1/2
c hour at 76 mph
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miles
1 1/2
d hours at 42 mph
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miles
2
question
120
miles at 40 mph
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hours
300
b miles at 50 mph
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hours
240
c miles at 60 mph
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hours
385
d miles at 70 mph
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hours
3
question
300
a car travels miles in 5 hours
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what is average speed of the car in miles
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mph
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b what is the average speed of the car in miles
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miles
82
c assuming the speed is constant
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minutes
4
question
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janet and bill leave their home at the same time
60
janet has miles to travel and drives at 40 mph
80
bill has miles to travel and also drives at 40 mph
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hours
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b how much longer does bill spend driving than janet
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hours
5
question
50
seconds
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mk
3
b minutes
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mk
1
c hour
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km
2 1/2
d hours
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km
6
question
2
andrew rows at an average speed of metres
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s
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minutes
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seconds
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c how far he row in 12 seconds
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m
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d how far he row in 3½ minutes
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m
7
question
5
a snail moves metres in 2 hours
20
a the time it takes to move m
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hours
3 1/2
b the distance it would move in hours
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metres
1
c the time it takes to moves m
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minutes
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your overall score
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correct answers
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you answered questions correctly out of
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incorrect answers
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there were questions
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there were questions you didn't attempt
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since these pages are under
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development
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simply confirm that everything works correctly
8
return to the y tutorials menu
2008
produced by a.j. reynolds august