Coastal Practical Skills (Edexcel IGCSE Geography): Flashcards
Exam code: 4GE1
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Define hypothesis.
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Cards in this collection (15)
Define hypothesis.
A statement that is tested through fieldwork.
Define null hypothesis.
A statement that is the opposite of a hypothesis, used to ensure there is no bias when collecting evidence.
Why must an aim be focused on a particular place?
Because you cannot measure everywhere.
State two risks specific to coastal fieldwork.
Any two of: tide times, weather conditions, slippery rocks, polluted water, working in an unfamiliar place or misuse of equipment.
How could the risk of infection from dirty water be managed?
Wash hands, use antibacterial hand wash and cover cuts and wounds.
In systematic sampling, how are sites selected?
At regular intervals, so that all parts of the stretch of coast are covered.
Why does random sampling reduce bias?
All sites have an equal chance of being selected.
______ sampling divides each sampling site into groups, such as three sites from each sample section.
Stratified sampling divides each sampling site into groups, such as three sites from each sample section.
Which piece of equipment is used to measure a beach gradient?
A clinometer.
What is a quadrat used for in coastal fieldwork?
To select sediment for sampling.
Define beach profile.
A survey using distance and angle measurements to identify the shape of the beach.
Which equipment is used to measure the axes of a pebble in sediment analysis?
Callipers.
Which coastal process is examined through sediment analysis across a beach?
Longshore drift.
When measuring longshore drift, pebbles are marked with waterproof paint and placed in the ______ zone.
When measuring longshore drift, pebbles are marked with waterproof paint and placed in the swash zone.
True or False?
Photographs and field sketches are quantitative data.
False.
Photographs and field sketches are qualitative data.
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