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A scientific law
How many significant figures in 45.000
Science numbers
41 terms
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sci notation, sig figs, SI system
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Answers
1
How many significant figures in 45.000
3
5
2
4
2
A scientific law
changes all the time
explains why something happens in the natural world
is the same as a hypothesis
says what will happen under certain conditions
3
write 45,689 in scientific notation
4.5689 x 10^(-4)
45.689 x 10^3
4.5689 x 10^4
456.89 x 10^2
4
Convert 56 m to cm
5600
0.0056
0.56
560
5
How do scientists test a hypothesis?
by making graphs
by drawing conclusions
by doing experiments
by observation
6
A hypothesis is
a prediction or educated guess
a conclusion
a theory
a scientific law
7
On a line graph
time is never on an axis
time goes on the y axis
time goes on the x axis
it doesn't matter which axis time is on
8
The experiment is do flowers grow taller with 2 cups or 6 cups of water daily. The independent variable is
the amount of sun
the type of flower
the amount of water
the flowers
9
A scientific theory
is a hypothesis
explains how or why something happens
says what will happen but does not explain why
is a prediction
10
An independent variable is
is a hypothesis
what is different between groups in an experiment
what is measured in an experiment
is always time
11
A scientific model is
a representation of a real event or object
a hypothesis
a small building used to conduct experiments
a new theory
12
How many significant figures in 0.05789
4
6
5
2
13
The scientific method is
a conclusion
creating a graph
a series of steps to solve a problem
an educated guess
14
What word means "learning about the natural world"?
technology
hypothesis
model
science
15
List the steps of the scientific method in order from first to last
observation, problem, hypothesis, experiment, data, analysis, conclusion
problem, hypothesis, observation, analysis, experiment, conclusion, data
hypothesis, observation, problem, experiment, data, analysis, conclusion
problem, hypothesis, observation, experiment, data, analysis, conclusion
16
Convert 46 mm to m
0.000046
46000
0.046
460
17
Scientific notation is used for
only for numbers less than 1
very small and very large numbers
numbers only between 1 and 10`
only numbers greater than 1000
18
Si prefix that means 1/1000
kilo
centi
hecto
milli
19
The SI measure for the amount of matter in an object is
luminous intensity
length
mass
temperature
20
The SI unit for length is
kelvin
kilogram
meter
candela
21
The experiment is testing whether tomato plants have more tomatoes when fertilizer is used. The dependent variable is
there is none
tomato plants
fertilizer
how many tomatoes the plant has
22
A number that is precise
has 1 significant figure
has a decimal point
is one that is very close to its true value
is verified by measuring and getting the same number several times
23
Si prefix that means 1000
centi
hecto
milli
kilo
24
How many significant figures in 0.0560?
4
2
5
3
25
Computer models are used to study complicated events and to
have fun
state theories
change laws into hypothesises
make predictions
26
How many meters in 3 kilometers
0.003
0.03
300
3000
27
How many significant figures does 500 have
0
3
1
2
28
A number that is accurate is one that
has 5 or more significant figures
is verified by measuring it several times
has a decimal point
is very close to its true value
29
technology is
only things invented after 1960
learning and experiments about the natural world
applied science - using science to solve a problem or make a new invention
only computers and cell phones
30
Line graphs show
percentages out of a whole
comparisons between groups
changes over time
are the same as a data table
31
Write 3.58 x 10^5 in standard notation
358000
3.5800000
3580
358000000000
32
Write 12,100 in scientific notation
1.21 x 10^(-4)
1.21 x 10^4
121 x 10^2
12.1 x 10^3
33
The SI unit for time is
second
minute
hour
day
34
A dependent variable
is what is measured in an experiment
is always time
always stays the same
is what changes between groups in an experiment
35
Write 0.004 in scientific notation
4 x 10^3
4 x 10^(-3)
0.4 x 10^3
0.4 x 10^(-2)
36
The prefix centi means
one thousandth
one thousand
one hundred
one million
37
Convert 390 m to cm
39000
0.39
390000000
39
38
4062 has how many significant figures
2
3
1
4
39
The SI unit for mass is
meter
kilogram
candela
kelvin
40
A factor that changes in an experiment is called a
graph
control
conclusion
variable
41
The SI prefix for one thousandth is
centi
nano
milli
kilo
