Year 11 Paper 3 revision

• Astronomy
• Upper Secondary (Key Stage 4)
• GCSE

Year 11 Paper 3 revision

Primary data is...

1. data that you have found on the internet
2. data you have collected yourself
3. data collected by someone else
4. the first set of data you collected

The aim of a piece of fieldwork is...

1. a statement you will test to see if it is true
2. the original purpose of the investigation
3. what you have found out from your data collection
4. factors that have affected how accurate your results are

The hypothesis is...

1. a statement you will test to see if it is true
2. the original purpose of the investigation
3. what you have found out from your data collection
4. factors that have affected how accurate your results are

The conclusion is...

1. a statement you will test to see if it is true
2. the original purpose of the investigation
3. what you have found out from your data collection
4. factors that have affected how accurate your results are

Describe 2 steps in the method for investigating sediment size.

Qualitative method                              Quantitative method

Field sketch

Sediment shape

Sediment size

Beach gradient

What fieldwork method is being shown here?

1. Beach gradient
2. Sediment shape
3. Sediment size
4. Field sketch

What was a problem with the beach gradient method?

1. The readings may not be correct as the clinometer was wrong
2. You may have collected the same pebble twice
3. The person may not draw properly
4. The tide may have been coming in

How could you improve the method for the beach profile?

1. make sure you don't pick the same stone twice
2. take multiple readings
3. draw accurately
4. have different people measuring each time

What is fieldwork quantitative data?

1. Data collected from secondary sources.
2. Numerical data collected through direct observation or measurement.
3. Qualitative data collected through surveys and interviews.
4. Descriptive data collected through field notes.

Qualitative method                              Quantitative method

Field sketch

Environmental quality survey

land use survey

Questionnaire 

Calculate the mean for the numbers below. To one decimal place.
5, 6, 5.5, 4, 2.5, 6.1, 5, 4.2, 6, 5

What is the fieldwork method being shown?

1. questionnaire
2. environmental quality survey
3. pedestrian count
4. field sketch

How could you present data about environmental quality?

02:30

What is an advantage of random sampling?

1. you pick the same thing more than once
2. you have an equal chance of picking something
3. you pick something every 10m
4. you can choose someone different to pick each time

03:21

What method did we use random sampling for?

1. sediment size
2. beach profile
3. environmental quality survey
4. land use survey

04:23

What is systematic sampling?

1. we collect data at random
2. we select 3 sites and collect data at each 3
3. we collect data at regular intervals

05:14

What is a disadvantage of systematic sampling?

1. it is quick and easy to carry out
2. you might miss data between sample sites
3. you might pick one at random
4. you might pick the same thing twice

06:34

What is an advantage of stratified sampling?

1. it can show a good representation of a whole population
2. it can be time consuming
3. it can be done quickly
4. you have to have knowledge about the area first

something is chosen at random from a population. each thing has an equal chance of being chosen but cannot do a large amount 

dividing a population into smaller groups based on particular characteristics so it is easy to compare but you must know some information before hand

when all data and a sample is selected at a chosen point e.g every 10m or 10 people. this makes it easy to select but may be biased

Systematic sampling

Random samlimg

Stratified

State two causes of coastal flooding in the UK

Explain one social or economic impact of flooding

What is the purpose of coastal flood defences?

1. To create recreational areas
2. To protect land from flooding and erosion
3. To promote beach erosion
4. To encourage marine life

What is this coastal flood defence?

1. groynes
2. sea wall
3. rip-rap/ rock armour
4. dam