Search for notes by fellow students, in your own course and all over the country.
Browse our notes for titles which look like what you need, you can preview any of the notes via a sample of the contents. After you're happy these are the notes you're after simply pop them into your shopping cart.
Title: BTEC APPLIED SCIENCE UNIT 3 ACTUAL CORRECT ANSWERS.
Description: What is a hypothesis? - CorreCt Answers -An Idea that you can test using practical experiments What does random sampling mean? - CorreCt Answers -It means that each potential sample has the same probability of being selected. When is random sampling used? - CorreCt Answers -When the area under the study is large. When it is fairly uniform and when there is limited time. What can piolet study's do? - CorreCt Answers -They can help you work out your sampling size
Description: What is a hypothesis? - CorreCt Answers -An Idea that you can test using practical experiments What does random sampling mean? - CorreCt Answers -It means that each potential sample has the same probability of being selected. When is random sampling used? - CorreCt Answers -When the area under the study is large. When it is fairly uniform and when there is limited time. What can piolet study's do? - CorreCt Answers -They can help you work out your sampling size
Document Preview
Extracts from the notes are below, to see the PDF you'll receive please use the links above
BTEC APPLIED SCIENCE UNIT 3 ACTUAL
CORRECT ANSWERS
...
When is random sampling used? - CorreCt Answers -When the area under
the study is large
...
What can piolet study's do? - CorreCt Answers -They can help you work out
your sampling size
...
Topography, for example steepness of slopes
...
What is a quadrat? - CorreCt Answers -A quadrat is a small area of habitat,
which sometimes has a grid within it
...
What is a point frame? - CorreCt Answers -It contains a number of pins
...
Species can be recorded along the whole
length of the line, this is continuous sampling
...
What is a belt transcet? - CorreCt Answers -It is similar to a line transect
but it gives information on the abundance of species
...
What is the reaction for combustion of fuels? - CorreCt Answers -It is
exothermic, therefore energy is releases as heat
...
This can be a hazard and
should be treated like it
...
What are the Key features of a good hypothesis? - CorreCt Answers -A good
Hypothesis must:
Be able to be tested scientifically
Relate one dependent variable to on independent variable
What is a Null Hypothesis? - CorreCt Answers -States that there is no
relationship or causality, for example, no relation between the temperature
and the rate of reaction
...
What does Quantitative data refer to? - CorreCt Answers -It refers to
numerical measurements made, such as the volumes and times measured
...
This
is an established procedure or method used to carry out a routine activity
...
What are some examples of SOPs? - CorreCt Answers -Titration, Handling
of chemicals, disposal of waste, qualitative analytical tests, preparing
solutions
What are risk assessments? - CorreCt Answers -It identifies hazards,
evaluates the risks associated with those hazards and it determines ways to
eliminate or control those risks
...
What is the independent variable? - CorreCt Answers -The variables you
change during an investigation
...
What is the control variable? - CorreCt Answers -The variables you keep
constant during an investigation
...
When planning your method what do you need to make sure? - CorreCt
Answers -That it will procedure a range of results, reliable results, precise
results, and accurate results
...
Some data can be a
mixture of numbers and names such as the number of different types of
plants found in a garden
...
You need to make sure its a smooth curve of best fit, and
that the curve goes through or near most of the points
...
What is the Pattern on the graph? - CorreCt Answers -The shape of the
graph
...
The full trend is that the volume
increases as the time increases but then levels off after a certain amount of
time
...
To be confident in your conclusions you need a large
sample size to give strong evidence
...
What is secondary data? - CorreCt Answers -The data that you get in books,
scientific papers or the internet
...
It does not lie close to the line of
best fit
...
inaccurate measuring/recording and impurities
...
This can be corrected by
calibrating the balance
...
What is the random error? - CorreCt Answers -These are due to not
following the method correctly and can be minimized by repeating results
and taking averages
...
What is the accuracy? - CorreCt Answers -How close is the data to the true
value? Errors due to the equipment could make the results less
...
It
is usually ensured by repeating the readings to identify any anomalous
results
...
It can be improved by using measuring equipment that measure
to more decimal places
...
What are proteins made up of? - CorreCt Answers -amino acids
What four chemical groups are attached to the central (alpha) carbon? CorreCt Answers -A hydrogen atom
...
A carboxyl group
...
How many different R groups are there? - CorreCt Answers -There are 20
different R groups which means there are 20 different amino acids
...
What does a condensation reaction occur between? - CorreCt Answers -Two
amino acids
...
What is a dipeptide formed by? - CorreCt Answers -Two amino acids linked
by a peptide bond
Title: BTEC APPLIED SCIENCE UNIT 3 ACTUAL CORRECT ANSWERS.
Description: What is a hypothesis? - CorreCt Answers -An Idea that you can test using practical experiments What does random sampling mean? - CorreCt Answers -It means that each potential sample has the same probability of being selected. When is random sampling used? - CorreCt Answers -When the area under the study is large. When it is fairly uniform and when there is limited time. What can piolet study's do? - CorreCt Answers -They can help you work out your sampling size
Description: What is a hypothesis? - CorreCt Answers -An Idea that you can test using practical experiments What does random sampling mean? - CorreCt Answers -It means that each potential sample has the same probability of being selected. When is random sampling used? - CorreCt Answers -When the area under the study is large. When it is fairly uniform and when there is limited time. What can piolet study's do? - CorreCt Answers -They can help you work out your sampling size