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Exam style questions - Hodder Plus Home

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11 Graphs<br />

Distance–time and other real-life<br />

graphs<br />

Here is an exam question …<br />

The graph shows Philip’s cycle journey between his<br />

home and the sports centre.<br />

Distance from home<br />

in kilometres<br />

y<br />

8<br />

7<br />

C<br />

D<br />

6<br />

B<br />

5<br />

4<br />

3<br />

2<br />

1<br />

A<br />

E<br />

0 20 40 60 80 100 120<br />

Time in minutes<br />

a Explain what happened between C and D. [1]<br />

b Explain what happened at B. [1]<br />

c Explain what happened at E. [1]<br />

d Work out the total distance that Philip travelled. [2]<br />

… and its solution<br />

a Philip was at the sports centre.<br />

b Philip’s speed changed, perhaps due to a steep hill.<br />

c Philip arrived home.<br />

d 12 km<br />

6 km there and 6 km back.<br />

Now try these exam <strong>questions</strong><br />

1 A rocket is fired out to sea from the top of a cliff. The graph shows the height of the rocket above sea<br />

level until it lands in the sea.<br />

Height in metres above sea level<br />

80<br />

70<br />

60<br />

50<br />

40<br />

30<br />

20<br />

10<br />

0 5 10 15 20 25 30<br />

Time in seconds<br />

a How high is the rocket above sea level after 10 seconds. [1]<br />

b How long does it take before the rocket lands in the sea [1]<br />

c Write down the time when the rocket is at the same height as it started. [1]<br />

d Write down the times when the rocket is 10 m above the cliff. [2]<br />

© <strong>Hodder</strong> Education 2011 Unit C<br />

57

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