The metric prefix Mega (M) represents

one million (1,000,000) of the unit

What is the scientific method?

A process used to explore observations/answer questions

How consistent your results are

Dependent variables are _______.....

can change due to other variables

how the reader correctly decodes the words they encounter

how is precision defined????

how close a measurement is to another measurement

what is scientific notation

A short way to wright big numbers

the degree of compactness of a substance

how close you are to the correct answer.

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Unit 1 Chemistry

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Scientific Method Scientific Notation Lab Safety Density Percent Error Metric Conversions Metric Units Accuracy Precision

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Questions 37

Answers

1
What is the 1^st step of the Scientific Method
Make observations
Ask a question
Test the hypothesis
Form a hypothesis
2
Which would be the best metric units to use to find the mass of a dog?
Kilometers
Liters
Kilograms
Milligrams
3
The metric prefix Mega (M) represents
one thousand (1,000) of the unit
0.001 (one thousandth, or 1/1000) of the unit
0.000 001 (one millionth, or 1/1,000,000) of the unit
one million (1,000,000) of the unit
4
Which one of these words are not a part of the scientific method?
Observation
Hypothesis
Translation
Conclusion
5
Write each number in standard notation.
2280
0.228
22.8
228
6
Which metric prefix means 10 ?
centi-
kilo-
deca-
deci-
7
Convert to scientific notation:
3.5 x 10-4
35 x 10-5
35 x 105
3.5 x 104
8
What is the scientific method?
A method used to discover science
A method used to find kinetic and potential energy
A method to find energy flow
A process used to explore observations/answer questions
9
Which would be the best metric units to find the length of a tree?
Centimetres
Metres
Kilometres
Millimetres
10
When at the lab...
feel free to leave your table to socialize
leave to become spiderman
do not do what you were instructed
stay at your station
11
Calculate the percent error.
33%
-33%
-50%
50%
12
What is precision?
How important something is.
How big something is.
How consistent your results are
How exact you are.
13
Dependent variables are _______.....
important
permanent
i don't know
can change due to other variables
14
Which metric prefix means 1000 ?
deci-
kilo-
milli-
deca-
15
What is the third step of the Scientific Method?
Research
Experiment
Hypothesis
Thinking Harder
16
What is the second step of the scientific method?
Experiment
Research
Conclusion
Analysis
17
Accuracy measures...
how the reader wrongly decodes the words they encounter
how the reader correctly decodes the words they encounter
the expression that a reader uses when reading aloud
how fast the reader reads
18
how is precision defined????
how precise something is
how close a measurement is to another measurement
how off something is
how far away something is
19
what is scientific notation
A short way to wright big numbers
Ken bone
a big way to wright short numbers
IDK XD M8
20
How is density calculated?
V=M/D
D=V/M
D= M/V
D/V=M
21
express in scientific notation
7.35x103
73.5x103
735x103
7.35x10-3
22
Which metric prefix means 1/10 ?
deca-
hecta-
milli-
deci-
23
How do you find density
M/v
?
Math
24
Standard to scientific notation
6000000000
60
6000000
6000
25
Which metric prefix means 1/1000 ?
centi-
milli-
hecta-
kilo-
26
Convert to scientific notation:
3.5 x 104
3.5 x 10-4
35 x 105
35 x 10-5
27
What is the formula for percent error?
is/of =%/100
difference/actual = x/100
difference/original = x 100
part/whole = %/100
28
Which are the three metric base units?
Meters, liters, Grams and Milliliters
Centimeters, Grams and Pounds
Meters, Liters and Kilograms
Meters, Liters and Grams
29
Which is NOT a lab safety rule?
Ask for help if you need it.
No running or horseplay.
Follow all directions.
Ignore a spill or mess.
30
Which metric prefix means 1/100 ?
centi-
deci-
milli-
deca-
31
Write 520 in scientific notation.
B) 0.52 x 103
A) 52 x 102
C) 5.2 x 103
D) 5.2 x 102
32
Which of the following metric units is a measurement of volume?
Millimeter (mm)
Centigrade (C)
Microgram (mcg)
Milliliter (mL)
33
What accuracy & precision is represented here?
Low precision, high accuracy
High precision, high accuracy
Low precision, low accuracy
High precision, low accuracy
34
The metric prefix hecto equals
1/100
1/1000
10
100
35
Which one is the right lab safety rule?
Make sure you put things in the experiments
Never tell the teacher
Always run in the lab!
Always protect your eyes
36
Density is..
the material structure of an individual life form
the degree of compactness of a substance
the quantity of matter which a body contains
the amount of space that a substance or object occupies
37
What is accuracy
How fun something is to do.
how close you are to the correct answer.
How large something is to complete.
A great feeling to have at the end of the day.

Unit 1 Chemistry Flashcards | StudBud