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Science Midterm Review Flashcards | StudBud
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Science Midterm Review
Science Midterm Review
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1
Test-Can a soccer ball be kicked further on turf or grass? What is the independent variable?
distance
kicking surface-turf or grass
person kicking the ball
size or brand of ball
2
Changing the bob is to an independent variable as ______________ is to a dependent variable
the weight of the bob
number of passengers
capacity
the pivot point
3
It is necessary to change only one variable at a time in a controlled experiment because
you need to find the dependent variable
it would take time to change more
otherwise no way to tell which variable affected results
less materials are needed
4
Which variable is always graphed on the "x" axis?
dependent
standard
independent
constant
5
Changes in this independent variable affected the results of our swinger experiments
length of the arm
force of the release
weight of the bob
pivot point
6
Which of the following is NOT part of a scientific investigation?
charting or graphing data
forming a hypothesis
drawing conclusions
documenting opinions
7
Which is the main difference between investigations in a lab and investigations in the field?
only the field can be outdoors
a lab environment can be controlled
experiments can only take place in a lab
8
A scientific theory ...
states what happens in the natural world
explains how things occur in the natural world
never changes
9
A scientific law....
explains how things occur in the natural world
states what occurs in the natural world
changes frequently
10
Which is the independent variable?
week
plant growth
type of plants
height in cm
11
Empirical evidence does not include
data
measurements
observations
opinions
12
Which variable is always graphed on the "Y" axis?
standard
dependent
independent
constant
13
This was the constant for all swinger experiments
no force release
the length of the arm
15 second timing for each trial
penny and paperclip as the bob
14
Which is the dependent variable?
time, in minutes
distance, in city blocks
name of the city
mode of transportation
15
It is necessary to establish a standard in a controlled experiment
in order to list all variables
in order to publish results
a standard is not necessary
in order to make comparisons
16
A few career opportunities in the field of science include
pharmacist-lab research assistant-music teacher
kindergarten teacher-nurse-accountant
chemical engineer-environmental engineer-botanist
doctor-librarian-dentist
17
A scientist who studies images as this works in a field of
earth science
physical science
life science
18
Number of passengers is to lifeboats as ________________is to swingers.
release point
length of the arm
weight of the bob
number of cycles
19
If an outlier is detected
do not retest
eliminate it from the data
make sure it is added to the graph
retesting is a must
20
Changing which variable MOST greatly increased lifeboat passengers
greater boat capacity/size
all of the above
changing the material of the boat
decreasing boat size
21
Changing which variable caused an increase in the number of cycles in 15 seconds?
a force release
making the arm longer
choosing a lighter weighted bob
making the arm shorter
22
What is the relationship between boat capacity and number of passengers?
less capacity-more passengers
greater capacity-fewer passengers
greater capacity-more passengers
capacity does not affect passenger count
23
Test-Can a soccer ball be kicked further on grass or turf? What is the dependent variable?
distance
size or brand of ball
turf
grass
24
Controlled experiments test the relationships between
controlled variables and the standard
dependent and controlled variables
independent and controlled variables
independent and dependent variables
25
A person who is interested in studying this image studies in the field of
life science
earth science
physical science
