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WorksheetsCommunity Chem Unit 1 Test Review
Total questions: 20
Worksheet time: 57mins
Name
Class
Date
1.
Chemistry is defined as
a)
The study of all basic things
b)
The study of matter and it's changes
c)
The study of life
d)
The study of all microscopic things
2.
The variable the is changed on purpose is..
a)
Constant
b)
Control
c)
Independent Variable
d)
Dependent Variable
3.
The variable that is being tested, counted, or measured and is responding to the independent variable is known as
a)
Control
b)
Constant
c)
Independent Variable
d)
Dependent Variable
4.
Mrs. Goodwyn wants to see if studying time affects test scores...She gives all 6 classes the same assignment but assigns different study times. What is the independent variable?
a)
Study time
b)
Test score
c)
Same assignment
d)
Same student demographic
5.
Mrs. Goodwyn wants to see if studying time affects test scores...She gives all 6 classes the same assignment but assigns different study times. What is the dependent variable?
a)
Study time
b)
Test Score
c)
Same Assignment
d)
Same student demographic
6.
How do you write
8.317 x 106
in standard form?
8.317 x 106
in standard form?
a)
8, 371, 000
b)
83, 170, 000
c)
837, 100
d)
8, 317, 000
7.
How would you write 564,000,000 in scientific notation?
a)
5.64 x 10-7
b)
5.64 x 106
c)
5.64 x 108
d)
56.4 x 107
8.
Convert 23 cm to m
a)
2.3
b)
0.23
c)
2,300
d)
230
9.
What is the proper scientific measurement using the following instrument?
a)
3.79 cm
b)
3. 8 cm
c)
4 cm
d)
3.50 cm
10.
Convert 34 g to kg
a)
0.034
b)
340
c)
0.00034
d)
34
11.
98 dm = ________mm
a)
98
b)
0.98
c)
980
d)
9800
12.
How many seconds are in 1 day? (1 day = 24 hr) (1 hr = 60 min) (1 min = 60 sec)
a)
0.000016 sec
b)
1440 sec
c)
86,400 sec
d)
84,600 sec
13.
The length of a desk is 3.5 feet. How many centimeters is this length?
(1 in = 2.54 cm) (1 ft = 12 in)
(1 in = 2.54 cm) (1 ft = 12 in)
a)
60 cm
b)
120.23 cm
c)
106.68 cm
d)
117.12 cm
14.
Convert 35 m/s to mi/hr. (1 mi =1609 m) (1 hr = 60 min) (1 min = 60 sec)
a)
37.8 mi/hr
b)
38.7 mi/hr
c)
73.8 mi/hr
d)
78.3 mi/hr
15.
Convert 50 cm2 to m2. (1m = 100 cm)
a)
0.5 m2
b)
5 m2
c)
0.005 m2
d)
50 m2
16.
What is the volume of Object X?
a)
10.0 cm3
b)
15.0 cm3
c)
20.0 cm3
d)
25.0 cm3
17.
If an object has a density of 3.6 g/mL and you put it into water, will it sink or float?
a)
sink
b)
float
18.
What is the volume of 150 grams of lead if it has a density of 11.3 g/cm3?
a)
13.3 g
b)
13.3 cm3
c)
.075 g
d)
1695 cm3
19.
What is the density of a block of marble that has a volume of 310 mL and has a mass of 853 g?
a)
0.36 g/mL
b)
0.363 g/mL
c)
2.75 g/mL
d)
27.5 g/mL
20.
How does the "What is Science" activity with the trays and marbles relate to chemistry?
a)
Students know the exact shape inside the tray, much like chemists know the exact structure of atoms, compounds, etc
b)
Students must estimate the shape inside the tray, much like chemists have to estimate the structure of atoms, compounds, etc
c)
The marble represents a proton, and the tray represents the electron shell
d)
The marble represents an electron and the tray represents the nucleus
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