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Chapter 1 Review
Chapter 1 Review
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scientific method, measurements, accuracy, reproducibility, estimation, graphing
Flashcards
35 cards
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Questions
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Answers
1
what do physical scientists study?
force, science
physics, energy
astronomy, physics
chemistry, physics
2
identify the quantitative observation
the students data did not support the hypothesis
there are two students
the students are wearing goggles
the students are sad
3
the amount of space something takes up
mass
weight
volume
density
4
what's the mass?
78 g
170.8 g
178.1 g
178.1
5
find the density of a rock with a mass of 100 grams and a volume of 10 cm
3
.
10 g/cm3
110 cm3/g
.1 g/cm3
90 cm3/g
6
what is the first step in the scientific inquiry?
ask questions
create hypotheses
experiment
communicate results
7
the length of a line is 2.6m. a student measures it to be 3.49m & 3.6m. the measurements are
accurate
reproducible
neither
both
8
refers to how close a measurement is to the true or actual value
accuracy
reproducibility
estimation
graph
9
What is the base SI unit for measuring length ?
Meter
Liter
Gram
Inch
10
What is the base SI unit for measuring mass?
Gram
Meter
Cubic meter
Liter
11
what can you conclude from the graph?
teens spend too much time on their phones
too many teens have cell phones
the number of teens using cell phones increases with age
the number of teens using cell phones decreases with age
12
what are the skills physical scientists use?
estimating, observing, predicting
observing, inferring, predicting
estimating, accuracy, predicting
accuracy, hypothesizing, observing
13
find the volume of the rock
20 cm3
40 mL
20 mL3
20 mL
14
what's the manipulated variable?
grade
number of students
class
study time
15
if the actual mass of a rock is 20 g, which data set below is
MOST
accurate?
19.8g, 20.1g, 20.5g
29g, 29.5g, 30g
27g, 27,g, 26.8g
24.9g, 25g, 25.1g
16
why do scientists use a standard measurement system?
compare data and communicate results
it's only used in 3 countries
it's based on the number 100
to make measuring easier
17
identify the qualitative observation
the students are wearing goggles
the students have five pencils
there are two students
the line is 3.4 centimeters
18
the amount of matter in an object
density
mass
volume
weight
19
What is the base SI unit for measuring liquid volume?
Cubed meter
Liter
Gram
Meter
20
the amount of gravitational force on an object
volume
mass
weight
density
21
refers to how close a group of measurements are to each other
reproducibility
data
estimate
accuracy
22
an approximation of a number based on reasonable assumptions
reproducibility
accuracy
graph
estimation
23
how long is the line in cm?
2.6 cm
27 mm
3 cm
2.8 cm
24
the variable parameter that is expected to change, aka:dependent variable
dependent variable
manipulated variable
parameter
responding variable
25
the amount of matter per unit volume
meniscus
force
weight
density
26
what conclusion can you draw from the graph?
study time has no effect on grade
increased study time leads to increased grade
increased study time leads to decreased
you're supposed to study?
27
the study of properties of matter and how matter changes
physics
astronomy
chemistry
biology
28
the variable parameter that is purposely changed, aka:independent variable
dependent variable
manipulated variable
parameter
dependent variable
29
how do scientists investigate the natural world?
scientific inquiry
metric system
communicate
ask questions
30
the study of matter, energy, motion, and forces and how they interact
chemistry
energy
physics
astronomy
31
identify the prediction
the tablet will dissolve quickly
the egg fell off the table
the tablet dissolved quickly
the student earned a B
32
what is the base SI unit for solid volume?
Liter
meter
cubic meter
gram
33
a picture of your data
hypothesis
graph
estimation
conclusion
34
what's the volume?
19 cm3
200 cm3
200 cm
19 cm
35
identify the inference
the line is 3.4 centimeters
the student will pass the test
the student is wearing goggles
the student is happy
