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BTEC APPLIED SCIENCE UNIT 3 EXAM QUESTIONS AND
ANSWERS VERIFIED 2025
Practice questions for this set
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What does Quantitative data refer
to?
Select the correct
definition
It refers to numerical measurements It refers to the theoretical implications of
made, 2data
1such as the volumes and times
measured.
It refers to the subjective
3 interpretation of 4It refers to the visual representation of
data data
Don't
know?
Terms in this set (143)
What is a hypothesis? An Idea that you can test using practical experiments
A good Hypothesis must:
What are the Key features of a good
Be able to be tested scientifically
hypothesis?
Relate one dependent variable to on independent variable
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, 3/22/25, 11:55 Btec Applied Science Unit 3 Flashcards |
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States that there is no relationship or causality, for example, no relation between the
What is a Null Hypothesis?
temperature and the rate of reaction.
It refers to the appearance or value of something, such as the colour observed or
What does qualitative data refer to?
whether the bubbles are produced.
What does Quantitative data refer to? It refers to numerical measurements made, such as the volumes and times measured.
The Standard Operating Procedure. This is an established procedure or method used
What is SOP?
to carry out a routine activity. It ensures consistent results every time.
Titration, Handling of chemicals, disposal of waste, qualitative analytical
What are some examples of SOPs?
tests, preparing solutions
It identifies hazards, evaluates the risks associated with those hazards and it
What are risk assessments?
determines ways to eliminate or control those risks.
When the equipment or substance can cause harm, for example a hot plate
What is a Hazard?
or hydrochloric acid
The harm that the hazard could cause and the chances of it happening, for
What is a risk?
example the risk of using a hot plate is getting burnt.
What is the independent variable? The variables you change during an investigation.
What is the Dependent variable? The variables you are investigating and measure during an investigation.
What is the control variable? The variables you keep constant during an investigation.
A step-by-step set of instructions, Be logically ordered, allows you to take sensible
What should a method be?
measurements, and allows you to test your hypothesis.
When planning your method what do you That it will procedure a range of results, reliable results, precise results, and
need to make sure? accurate results.
The data can be continuous such as the age of plant ir number of plants. Some
What are some types of data? data can be a mixture of numbers and names such as the number of different
types of
plants found in a garden.
What data is normally displayed on a Continuous data. You need to make sure its a smooth curve of best fit, and that
bar chart? the curve goes through or near most of the points.
What are bar charts used for? They are used for discrete data but can be used to compare different sets of data.
The shape of the graph. It is the line that goes up as time goes by but
What is the Pattern on the graph?
eventually levels off
The relationship between factors on the graph or in the table. The full trend is that
What is the trend on a graph? the volume increases as the time increases but then levels off after a certain
amount of time.
The number of people sampled in the investigation. To be confident in
What is the sample size?
your conclusions you need a large sample size to give strong evidence.
This is the data that you have gathered for yourself through the experiments
What is Primary data?
or investigations .
The data that you get in books, scientific papers or the internet. You should
What is secondary data?
compare your primary and secondary data to draw a conclusion
It doesn't fit into the pattern of the other results. It does not lie close to the line of
How do you know if the data is anomalous?
best fit.
What can cause the anomalous data? Not following the method correctly. inaccurate measuring/recording and impurities.
The error that is built into the method or equipment which you are using. This can
What is systemic error?
be corrected by calibrating the balance. These errors are quantitative.
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