WorksheetsMeasurement and Scientific Process Review 2020
Total questions: 58
Worksheet time: 2hrs 58mins
Name
Class
Date
1.
What is a measure of how close measurements come to each other when they are made in the same way?
a)
Accuracy
b)
Precision
c)
Error
d)
Extrapolation
2.
This bullseye demonstrates...
a)
High Accuracy & High Precision
b)
High Accuracy & Low Precision
c)
Low Accuracy & High Precision
d)
Low Accuracy & Low Precision
3.
The students measured length during a science experiment, they got 12.00 cm. But the actual measurement was 14.25 cm. What was the percent error?
a)
15.79%
b)
18.75%
c)
2.25%
d)
18%
4.
volume?
a)
48 mL
b)
48.2 mL
c)
48.25 mL
d)
4 mL
5.
Volume?
a)
63.5 mL
b)
63 mL
c)
63.55 mL
d)
6 mL
6.
Which Student is the most Precise?
a)
Student A
b)
Student B
c)
Student C
7.
Which student had the more accurate results?
a)
Student A
b)
Student B
c)
Student C
d)
Cannot be determined
8.
How many significant figures: 216 m
a)
1
b)
2
c)
3
d)
0
9.
How many significant figures: 2016 m
a)
1
b)
2
c)
3
d)
4
10.
How many significant figures: 153.0 mL
a)
1
b)
2
c)
3
d)
4
11.
How many significant figures: 0.012 km
a)
1
b)
2
c)
3
d)
4
12.
How many significant figures: 1000 mL
a)
1
b)
2
c)
3
d)
4
13.
How many significant figures: 100.000 cL
a)
1
b)
3
c)
5
d)
6
14.
How many significant figures: 0.010 L
a)
1
b)
2
c)
3
d)
4
15.
Round the following number off to the number of sig figs shown in parentheses:
529.78 (3)
529.78 (3)
a)
530
b)
529
c)
5.30 x 102
d)
5.3 x 102
16.
Calculate the answer to the following problem and round the final answer to the correct number of sig figs:
24.567 + 0.04478 =
24.567 + 0.04478 =
a)
24.61178
b)
24.612
c)
24.611
d)
24.61
17.
Express the following number in decimal notation:
4.502 x 105
4.502 x 105
a)
450,200
b)
4502
c)
0.00004502
d)
0.000004502
18.
Express the following number in decimal notation:
4.96 x 10-3
4.96 x 10-3
a)
0.00496
b)
4,960
c)
496
d)
0.000496
19.
Express the following number in scientific notation:
0.00075
0.00075
a)
7.5 x 10-4
b)
7.5 x 104
c)
7.5 x 103
d)
7.5 x 10-3
20.
Express the following number in scientific notation:
0.00000534
0.00000534
a)
5.34 x 10-6
b)
5.34 x 106
c)
534 x 105
d)
5.34 x 10-5
21.
Calculate the answer to the following problem and round the final answer to the correct number of sig figs:
278 x 11.70 =
278 x 11.70 =
a)
3252.6
b)
3250
c)
3252
d)
325
22.
Kalinda was trying to explain to her friend the difference between a theory and a law in science. She used the theory of plate tectonics and the law of superposition as examples. Kalinda explained the difference by using nonscientific language. Which statement did Kalinda use to correctly describe the difference between a theory and a law in science?
a)
A theory describes a natural event, while a law explains it.
b)
A theory explains a natural event, while a law predicts it.
c)
A theory explains a natural event, while a law describes it.
d)
A theory predicts a natural event, while a law explains it.
23.
Laws are usually mathematically defined.
a)
True
b)
False
24.
A scientific ____________ is a statement that describes what always happens under certain conditions in nature.
a)
law
b)
theory
c)
method
d)
variable
25.
New cells are formed from other existing cells, and that the cell is a fundamental unit of structure, function and organization in all living organisms.
a)
Fact
b)
Theory
c)
Law
26.
A possible explanation to a problem that has not yet been tested.
a)
data
b)
theory
c)
hypothesis
d)
fact
27.
If I increase the amount of fertilizer a bean plant receives, the plant will grow taller.
a)
Hypothesis
b)
Theory
c)
Law
28.
Species on earth have changed over time because some organisms are more likely to survive and to reproduce, passing favorable traits to their offspring.
a)
hypothesis
b)
theory
c)
law
29.
Force = Mass x Acceleration
a)
hypothesis
b)
theory
c)
law
30.
Once a theory has been tested and confirmed it cannot be changed.
a)
True
b)
False
31.
This variable in an experiment is the one being deliberately changed by the scientist.
a)
dependent variable
b)
independent variable
c)
data
d)
control group
32.
There are two types of data. Which type of data involves numbers that are obtained by counting or measuring?
a)
quantitative
b)
qualitative
33.
In a controlled experiment, how many independent variables can be worked with at a time?
a)
one
b)
none
c)
two or more
d)
how ever many makes sense.
34.
Mr. S. sets up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. Identify the independent variable.
a)
distance traveled by the ball
b)
height of the ramp
c)
mass of the ball
d)
weight of the ball
35.
Mr. S. sets up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. Identify the dependent variable.
a)
height of the ramp
b)
distance traveled by the ball
c)
mass of the ball
d)
weight of the ball
36.
7,000 g = ____ kg
a)
70
b)
700
c)
7
d)
0.07
37.
240 cm = ___________ m
a)
2400
b)
24
c)
2.4
d)
0.24
38.
3 km = ___________ mm
a)
30
b)
300
c)
3,000
d)
3,000,000
39.
What did I measure if I record that something was 56 mL?
a)
Volume
b)
Mass
c)
Time
d)
Distance
40.
What did I measure if I record that something was 25 kg?
a)
Volume
b)
Mass
c)
Distance
d)
Time
41.
What are the units for molar mass?
a)
grams
b)
amu
c)
grams/mole
d)
liters
42.
If an atom of Fluorine has an atomic mass of 19 amu, it has a Molar mass of ____
a)
19 lbs.
b)
19 kg
c)
How am I supposed to know?
d)
19 g/mol
43.
How many moles are in 3.01 x 1022 atoms of magnesium?
a)
0.05 moles
b)
1.81 x 1046 moles
c)
5.00 x 1021 moles
d)
5 moles
44.
How many atoms of carbon are in 6.00g of carbon?
a)
1.20x1024atoms C
b)
6.02x1023atoms C
c)
3.01x1023atoms C
d)
1.50x1023atoms C
45.
How many molecules of sugar (C6H12O6) are in a mole?
a)
24 molecules
b)
180 molecules
c)
180 g
d)
6.02 x 1023 molecules
46.
How many molecules are in 2.5 mol of NaCl?
a)
1.51x1023
b)
146
c)
4.15
d)
1.51x1024
47.
What is the mass of 6.02 x 1023 platinum atoms? Round to the nearest hundredths place.
a)
30.97 g
b)
106.42 g
c)
140.91 g
d)
195.09 g
48.
What is the mass of one mole of silver?
a)
32.06 g
b)
107.87 g
c)
14.01 g
d)
22.99 g
49.
What is the mole used for?
a)
To measure the amount of grams in a substance
b)
To measure the amount of atoms or molecules in a substance
c)
To measure the amount of energy in a substance
d)
To measure the amount of bonding in a substance
50.
What is Avogadro's Number?
a)
6.02 x 1023
b)
- 6.02 1023
c)
6.02 x 1022
d)
6,020,000,000,000
51.
How many atoms are in 1 mole of NaCl?
a)
6.02 x 1023
b)
58
c)
11
d)
17
52.
How many moles are in 32 grams of Oxygen (O)?
a)
3
b)
2
c)
1
d)
4
53.
How many moles are in 20 grams of Ca (Calcium)?
a)
0.5
b)
1
c)
3
d)
20
54.
How are the mole and atomic masses of elements related?
a)
The atomic mass of any substance is always equal to 1 mole of that substance
b)
The atomic mass added up with itself by 6.02 x 1023 equals the amount of atoms
c)
The atomic mass is the amount of protons plus number of atoms
d)
Atoms combined make up molecules, which are the measurement of atomic masses
55.
If 96.5 grams of gold has a volume of 5 cm3 , what is the density of gold?
Hint: density = mass/volume
a)
482.5 g/cm3
b)
19.3 g/cm3
c)
0.05 g/cm3
d)
101.5 g/cm3
56.
What is the formula for density?
a)
density = mass * volume
b)
density = volume * mass
c)
density = mass/volume
d)
density = volume/mass
57.
Jack has a rock. The rock has a mass of 14g and a volume of 2cm3. What is the density of the rock?
a)
7 mL
b)
7 g/cm3
c)
28 g/cm3
d)
1/7 g/cm3
58.
What do two or more Avogadro's make?
a)
Guaca-MOLE
b)
Chemistry = fun
c)
Tik Tok maddness
d)
You snapchatting your life away
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