7 Express the scale of the map as a statement: One centimetre on the map represents kilometres on the ground.
Answer: 1 cm represents 0.25km
8 What is the contour interval of the map?
Answer: the contour interval of the map is 10cm.
9.Calculate the following.
a) the width of the mouth of the Tweed Rive
Answer: 250m
b) the length of the breakwater on the southern side of the Tweed River
Answer: 375m
c) the length of the jetty extending into the ocean from the sand pumping station in AR 5483
Answer: 500m
d) the distance along the beach from the lookout at Greenmount Hill to the Rainbow Bay surf club
Answer: 350m
e) the time it would take you to walk along the beach from the Rainbow Bay surf club to the Coolangatta Beach surf club if you were walking at a speed of 5 kilometres per hour.
Answer: 16.5 minutes
10 Which is higher, the lighthouse at Point Danger or the lookout on Kirra Hill?
Answer: Lighthouse at Point Danger
11 What is the aspect of the slope where the electricity substation is located in AR 5283?
Answer: Downslope
12 What is the approximate height of the small electricity substation in AR 5283?
Answer: 80m
13 Name the human features location at the following grid references.
a) 532824
Answer: Island
b) 536823
Answer: Terranora inlet
c) 541844
Answer: light house
d) 513834
Answer: highway
e)528819
Answer: Caravan Park
f) 532828
Answer: wharf
14 Name the natural features located at the following grid references.
a) 524818
Answer: Boyds island
b) 537822
Answer: island
c) 514844
Answer: Kirra Beach
d) 521833
Answer: Mount Murraba
e) 544817
Answer: Island
f) 544839
Answer: River
15 Refer to 7.24 and the topographic map. Give the grid reference of the lookout that the photographer was standing at when the photograph was taken.
Answer: 526845
16 What is the density of buildings in AR 5483?
Answer: Low density
17 Which area has the greatest density of buildings per square kilometre—AR 5281 or 5282? Give a reason for your answer.
Answer: AR 5282 has a greater density of buildings per a square kilometer as the AR doesn't cover the Terranora creek like AR 5281.
18 Estimate the bearing of the following features from the water tank on the top of Mount Murraba
a) the groyne at Kirra Point
Answer: 30 degrees
b) the mouth of the Tweed River
Answer: 75 degrees
c) Boyds Island
Answer: 166 degrees
d) Snapper Rocks *
Answer: 55 degrees
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