Physics
Mr.Costa
2015-2016
iMater Academy
Chapter 1
What is Physics?
(Discuss amongst yourselves)
1 minute
Answer:
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Physics is a science
Physics comes from a greek word that literally
translates into “Knowledge of Nature”.
Wikipedia calls it; A general analysis of nature,
conducted in order to understand how the universe
behaves.
Your text describes it as a study about the nature
of basic things such as motion, forces, energy,
matter, heat, sound, light and the composition of
atoms.
The Scientific Method
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A process by which science is conducted
that allows for the attainment of new
knowledge or the correction of old
knowledge which may be flawed.
Scientific Method
Steps:
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Recognize a problem(Make an observation)
Formulate a hypothesis
Make a prediction.
Perform experiments to test predictions.
Analysis of results.
Scientific Method(Example)
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observation that my laptop wasn't receiving an Internet
connection. I asked myself a question: Is something wrong with
the Internet itself, or was it just my laptop? One way to begin
answering this question was to check the connection on the desktop
computer. Quickly, I formed a hypothesis: If the Internet isn't
working on the desktop either, then the problem is beyond my laptop
computer. The experiment I performed was to check the desktop's
connection, and my resulting observation was that the Internet didn't
work there. So, by analyzing the evidence, I was able to form my
first conclusion: Nothing is wrong with my laptop, and something
is wrong with the Internet connection. Now, this conclusion answered
my first question. But it still didn't get my Internet to work.
The Hypothesis
What is a Hypothesis?
(Disscus amongst Yourselves)
1 minute
What is a Hypothesis?
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A hypothesis is an educated guess that is not
fully accepted until demonstrated by
experimentation.
If evidence is found to contradict a hypothesis, the
hypothesis must be changed or abandoned.
An innate characteristic of hypotheses is that they
must be testable.
If a test that can negate a hypothesis can not be
produced, than the hypothesis is not a scientific one.
Hypothesis Finale
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If a hypothesis is tested many times, and the
results remain precise and accurate
throughout all tests than a hypothesis may
become a law/principle.
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A law/principle is not the same as a theory.
Scientific Discovery
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The scientific method is not the end all, be all
of scientific discovery.
Other forms of scientific advance include:
Trial and Error, experimentation without
guessing, and accidents.
There are many ways in which science
progresses.
Laws vs Theories
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A law is a hypothesis that has been tested
many times and has remained unchanged
without being contradicted.
A theory on the other hand, encompasses a
large amount of information and is ever
changing as new information comes to light.
Precision vs Accuracy
Line of Best Fit Exercise
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Obtain a piece of Graphing Paper.
Create a Graph
Label the X-axis Time
Label the Y-axis Speed
Title the Graph Acceleration.
Turn to board for further intstruction.
Scientific Fact
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A fact is a consensus or general agreement
between a group of observers based off a
shared observation.
A scientific fact does not imply certainty, in
science there are no absolutes.
In this way a fact prescribes an extremely
high probability in the behaviour of a
phenomena.
Science & Technology
What distinguishes science from technology?
(Discuss among yourselves)
1 minute
Science & Tech.
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Science is the search for wisdom and
knowledge. It is a quest which attempts to
understand natural phenomena.
In technology we use or apply this
knowledge gained through scientific research
for the betterment of the human species.
Rulers, Scales, Stopwatches,
Thermometers
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What do they all have in common?
30 SECONDS!
Answer:
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They are used to measure quantities and
collect data!
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Length/distance
Mass
Time
Temperature
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4 Next Time:
Class Work: Ch.1 Assess; #s 3-7
Homework: Florida Benchmark Review