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Physics chapter 1
first test
Question | Answer |
---|---|
Scientific method | an orderly method for gaining, organizing, and applying new knowledge |
What is natures rules? | science |
how does science change our life?(2) | * connections between things *richness to the way we see our world |
when were the roots of science first recorded? | before recorded history |
name two ways that science was observed before it was written | 1.changing constellations 2. weather |
science is organized ________ | curiosity |
what two elements make up science? | way of thinking and body of knowledge |
today natural philosophy is called _____ | science |
since science is natural philosophy what does this mean? | study of unanswered questions about nature |
what does science use to support or disprove the questions of nature | experimentation |
what does life sciences study? | living things |
name four life sciences | biology, anatomy, zoology, botany |
what is the study of nonliving things? | physical sciences |
name four physical sciences | physics, chemistry, geology, astronomy |
what basic things does physics study? | motion, forces, heat, sound, light, atoms, energy, matter |
what physical science studies how matter is put together and combines? | chemistry |
what science involves matter that is alive? | biology |
which science supports chemistry which supports biology? | physics |
which science is the most basic and leads to understanding other sciences? | physics |
name the three benefits of using math when analyzing nature. | 1. less ambiguous 2.makes it easier to verify or disprove by experiment 3. expresses relationships between concepts |
name the two founders of the scientific method. | 1.Bacon 2.Galileo |
what are the steps of the scientific method? | 1. recognize problem 2. form hypothesis 3. if then statement 4. experimentation 5.conclusion |
when deciding on IV and DV what is a good question to ask yourself? | does IV affect DV? |
do answers in science only come from scientific method? | no |
In addition to scientific method how can answers in science be reached? | 1. trial and error 2. attitude of inquiry |
I am a way of gaining, organizing, and applying new knowledge. what am I? | scientific method |
how are experiments usually set up? | as controlled expirements |
what do we call the conditions that can change or be changed in an experiment. | variables |
how many variables do scientists test at a time? | one |
What are variables called that are kept the same between the testing groups? | constants |
which group is kept under normal conditions? | control group |
why do we have control groups? | to have a comparison of the effect of the changed variable |
which group in the experiment has a condition that is purposely changed to test its effect? | experimental group |
which variable is purposely changed in an experiment? | independent variable |
which variable measures the effect of the change? | dependent variable |
i am information that is gained through the five senses. what am I? | observation |
I am a conclusion based on observations. what am I? | inference |
If i say the folder is red what am I? | observation |
if i say the girl is crying because she is sad. what am i? | inference |
if i say the window in the classroom is glass. What am I? | inference |
if i say the block weighs 15 kilograms. what am i? | observation |
Fact | a close agreement by competent observers of a series of observations of the same phenomena. |
Hypothesis | an educated guess; a reasonable explanation of an observation or experimental result that is not fully accepted as factual until tested over and over again by experiment. |
Law/Principle | a general hypothesis or statement about the relationship of natural quantities that has been tested over and over again and has not been contradicted. |
Theory | a synthesis of a large body of information that encompasses well-tested and verified hypotheses about aspects of the natural world. |
Controlled Experiment | an experiment that tests only one variable at a time and has an experimental group and a control group, to be used as a comparison |
Control | one of two groups in an experiment that is kept under “normal” conditions for the purpose of comparison. (as opposed to the experimental group, which is changed) |
Variables | conditions that can change or be changed |
Constants | variables that must be kept the same in an experiment |
Independent variable | the variable that is purposely changed to test its effect |
Dependent variable | the effect that is measured as the result of the change in the independent variable |
Observation | information gained by use of the five senses (sight, hearing, touch, taste, smell) |
Inference | conclusion based on observations |
Science | method of answering theoretical questions (knowledge) |
Technology | method of solving practical problems (tools, techniques, and procedures) |