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Worksheets1.1 review questions
Total questions: 64
Worksheet time: 41mins
Name
Class
Date
1.
All of the following are steps in the scientific method EXCEPT
a)
Observing and recording data
b)
Forming a hypothesis
c)
discarding data inconsistent with the hypothesis
d)
developing a model based on experimental results
2.
A statement that can be tested experimentally is a
a)
variable.
b)
model.
c)
generalization.
d)
hypothesis.
3.
A theory is best described as a
a)
series of experimental observations
b)
generalization that explains a body of known facts or phenomena
c)
scientifically proven fact
d)
testable statement
4.
Standards of measurement are chosen because they
a)
can be related to everyday objects.
b)
are reproducible in another laboratory.
c)
cannot be destroyed by any common physical or chemical means.
d)
are easily changed.
5.
Which of these is not an SI base unit?
a)
kilogram
b)
second
c)
liter
d)
Kelvin
6.
The quantity of matter per unit volume is
a)
mass
b)
weight
c)
inertia
d)
density
7.
The unit m3 measures
a)
length
b)
area
c)
volume
d)
time
8.
Which of these is the abbreviation for the SI base unit of time?
a)
hr
b)
h
c)
sec
d)
s
9.
The most appropriate SI unit for measuring the length of an automobile is the
a)
millimeter
b)
kilometer
c)
meter
d)
liter
10.
Which of these is a measure of the amount of material?
a)
density
b)
weight
c)
volume
d)
mass
11.
Which of these statements about mass is true?
a)
Mass is expressed in pounds or newtons.
b)
Mass is usually measured with a spring scale.
c)
The mass of an object depends on the force of gravity acting on it.
d)
The mass of an object is determined by comparing it to an object of known mass.
12.
The density of aluminum is 2.70 g/cm3. What is the mass of a solid piece of aluminum with a volume of 1.50 cm3?
a)
0.556 g
b)
1.80 g
c)
4.05 g
d)
4.20 g
13.
A sample of gold has a mass of 96.5 g and a volume of 5.00 cm3. The density of gold is
a)
0.0518 g/cm3.
b)
19.3 g/cm3.
c)
101.5 g/cm3.
d)
483 g/cm3.
14.
The density of pure diamond is 3.5 g/cm3. What is the volume of a diamond with a mass of 0.25 g?
a)
0.071 cm3
b)
0.875 cm3
c)
3.75 cm3
d)
14 cm3
15.
If 1 inch equals 2.54 cm, how many centimeters equal 1 yard?
a)
0.0706 cm
b)
14.2 cm
c)
30.5 cm
d)
91.4 cm
16.
The number of significant figures in the measured value 0.032 0 g is
a)
2
b)
3
c)
4
d)
5
17.
Which of these measurements has been expressed to three significant figures?
a)
0.052 g
b)
0.202 g
c)
3.065 g
d)
500 g
18.
Which of these measurements has only nonsignificant zeros?
a)
0.0037 mL
b)
60.0 mL
c)
400. mL
d)
506 mL
19.
The dimensions of a rectangular solid are measured to be 1.27 cm, 1.3 cm, and 2.5 cm. The volume should be recorded as
a)
4.128 cm3.
b)
4.12 cm3.
c)
4.13 cm3
d)
4.1 cm3.
20.
The product of 13 cm and 5.7 cm is correctly reported as
a)
74 cm2.
b)
74.0 cm2.
c)
74.1 cm2.
d)
75 cm2.
21.
How many significant figures would the answer to the following calculation have? 3.475 ´ 1.97 + 2.4712
a)
2
b)
3
c)
4
d)
5
22.
The capacity of a Florence flask is 250 mL. Its capacity in liters expressed in scientific notation is
a)
2.5 ´ 10–2 L.
b)
2.5 ´ 10–1 L.
c)
2.5 ´ 101 L.
d)
2.5 ´ 102 L.
23.
Two variables are directly proportional if their ____ has a constant value.
a)
sum
b)
difference
c)
quotient
d)
product
24.
The graph of two variables that are directly proportional to one another is
a)
a straight line.
b)
an ellipse.
c)
a parabola.
d)
a hyperbola.
25.
The graphs of two variables that are inversely proportional to one another is
a)
a straight line.
b)
an ellipse.
c)
a parabola.
d)
a hyperbola.
26.
Five darts strike near the center of the target. Whoever threw the dart is...
a)
accurate
b)
neither accurate or precise
c)
precise
d)
both accurate and precise
27.
Precision pertains to all of the following except
a)
reproducibility of measurement
b)
agreement among numerical values
c)
sameness of measurements
d)
closeness of a measurement to an acceptable value
28.
How close a measurement is to the true value is called
a)
accuracy
b)
precision
c)
significant
d)
estimate
29.
You place a rock on the electronic balance and it measures a mass of 12.38g. The estimate digit is...
a)
1
b)
2
c)
3
d)
8
30.
Which is the more precise measurement?
a)
4 mL
b)
4.3 mL
c)
4.30 mL
d)
4.300 mL
31.
What happens if percent error is negative?
a)
The final answer will not be negative
b)
The final answer will be negative
c)
It means you've done something wrong
d)
You have to do a different equation
32.
how many significant figures in the number 0.07506
a)
6
b)
3
c)
5
d)
4
33.
how many significant figures in 0.98060
a)
6
b)
5
c)
3
d)
4
34.
how many significant figures are in the number 4.60020
a)
3
b)
6
c)
5
d)
2
35.
what is the percent error if the experimental value is 43.6 and the accepted value is 42.09
a)
0.035
b)
0.02
c)
0.05
d)
0.024
36.
what is the percent error if the experimental value is 4.3 and the accepted value is 5.7
a)
-0.24
b)
0.24
c)
0.3
d)
-0.22
37.
How many sig figs are in 0.7780
a)
4
b)
2
c)
5
d)
3
38.
What is the percent error if the experimental is 22 and the accepted is 20
a)
0.08
b)
0.11
c)
0.02
d)
0.1
39.
What is precision
a)
How close something is
b)
Aiming down something
c)
Staring at something
d)
Getting close to the target repeatedly.
40.
What is accuracy
a)
spot on
b)
getting a 100
c)
getting far away from the target
d)
missing the target
41.
How do you get scientific notation
a)
You go backwards or forwards and count the decimal places
b)
You guess
c)
You look for percent error first.
d)
You check for the sig figs.
42.
when a measurement is repetitive and unchanging it is know to have?
a)
low precision
b)
high accuracy
c)
high precision
d)
low accuracy
43.
How many significant figures are in 0.063
a)
3
b)
2
c)
4
d)
1
44.
how many significant figures are in 1.674
a)
5
b)
3
c)
4
d)
2
45.
how many significant figures are in 0.007
a)
1
b)
4
c)
3
d)
2
46.
How does accuracy differ from precision?
a)
Accuracy closeness of a set of measurements of the same quantity made in the same way.
b)
How consistent the measurements are
c)
how close a value is to the correct or accepted value
d)
How close a value is to correct or experimental value
47.
What do you multiply by for calculating percent error?
a)
100
b)
10
c)
1000
d)
0.01
48.
Precision and accuracy are ____
a)
the same
b)
different
c)
equal
49.
Which are some characteristics shared by all effectively designed experiments?
a)
have fun while doing the experiment
b)
write everything down in pen
c)
ask social media their opinion for better ideas
d)
analyzing data
50.
What's an example of proper lab safety?
a)
wearing sunglasses to protect from eye damage
b)
leaving your hair undone to make sure you can extinguish it should it catch fire
c)
leaving shoes untied to be easily removed if you hurt your feet or catch fire
d)
mixing chemicals only when instructed by the teacher
51.
In 5 experiments with the same objective, the values obtained are very near to each other. These values can be called ____
a)
accurate
b)
precise
c)
wrong
d)
useless
52.
A man hits the bullseye on a dart board 5 times in a row. He is
a)
accurate
b)
precise
c)
both accurate and precise
d)
neither accurate nor precise
53.
What is the result of this calculation, rounded to the correct number of significant figures 0.13 + 0.004
a)
0.134
b)
0.13
c)
1
d)
0.01
54.
How many significant figures are in 0.0006
a)
1
b)
2
c)
3
d)
4
55.
How many significant figures are in 9.106
a)
1
b)
2
c)
3
d)
4
56.
What is 77.61 to 3 significant figures?
a)
80
b)
78
c)
77.6
d)
77.61
57.
20L = ? mL
a)
20000 mL
b)
2000 mL
c)
200 mL
d)
20 mL
58.
35 mL = ? L
a)
3500 L
b)
0.0035 L
c)
0.035 L
d)
350 L
59.
60cm = ? mm
a)
6 mm
b)
60 mm
c)
600 mm
d)
6000 mm
60.
How many significant figures does the following measurement contain? 3 coins
a)
1
b)
2
c)
3
d)
infinite
61.
How many significant figures does the following measurement contain? Temperature = 0.0023 degree Centigrade
a)
2
b)
3
c)
4
d)
infinite
62.
The table I bought was supposed to be 6 feet long, but when it came in it was 5.5 feet long. What is the percent error?
a)
0.07285
b)
0.0099
c)
0.0909
d)
0.0445
63.
There was an online quiz Malaya took. She completed 9 out of 12 questions before she got tired and quit. What is her percentage error if she got all answered questions correct?
a)
0.45
b)
0.55
c)
0.65
d)
0.25
64.
Billy measures all his chips because he is bored. The average chip weight on the bag was labeled to be 1.90 grams. Billy’s measurements came out to be 1.8, 1.83, 1.92, and 1.85 grams. Are the chips accurate and precise?
a)
Accurate but not precise
b)
Precise but not accurate
c)
Both accurate and precise
d)
neither accurate nor precise
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