WorksheetsPhysical Science Mid Term Review (Unit 1-5)
Total questions: 50
Worksheet time: 46mins
Name
Class
Date
1.
What is one of the steps you should do before a lab?
a)
Clear desk
b)
Chat with a friend
c)
Touch the lab equipment
d)
Homework
2.
When must you wear goggles?
a)
only if there is acid or flames
b)
only if there is broken glass
c)
whenever there is heat, liquids, or glassware used
d)
Whenever there is class
3.
If you are injured in the lab
a)
Go to the nurse after class
b)
Use a paper towel
c)
Tell the teacher after class
d)
Tell an adult immediately
4.
What is an independent variable?
a)
The thing that stays the same in the expirment
b)
The thing that is being changed by the scientest
c)
The thing that is being measured in the expirement
d)
The thing that you are comparing in the expirement
5.
What is a dependent variable?
a)
An educated guess about an experiment
b)
The thing that is being measured in the expirement
c)
The thing that is being changed by the scientest
d)
The thing you are comparing in the expirement
6.
9.2 Km = ______m
a)
92
b)
920
c)
0.92
d)
9200
7.
Convert 23 cm to m
a)
2.3
b)
0.23
c)
2,300
d)
230
8.
How would you write -5.6 x 10-3 in standard form?
a)
0.0056
b)
-5,600
c)
0.00056
d)
-0.0056
9.
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
10.
Can an element be broken down into a simpler substance
a)
yes
b)
No
11.
Water is an example of:
a)
compound
b)
element
c)
solution
12.
Which of the following is not a compound?
a)
HCl
b)
Cl
c)
NaCl
d)
CO2
13.
A combination of substances that are not chemically combined is called a(n)____________.
a)
mixture
b)
compound
c)
physical
14.
This picture represents which of the following?
a)
element
b)
compound
c)
mixture
15.
This picture represents which of the following?
a)
element
b)
compound
c)
mixture
16.
Which of the following is a sign that a chemical reaction has occurred?
a)
change in shape
b)
melting
c)
formation of a gas
d)
dissolving
17.
A change in the size, shape, or state of matter.
a)
chemical change
b)
physical change
c)
chemical reaction
d)
electron change
18.
Salt dissolves in water
a)
physical Change
b)
chemical change
19.
Food digested in the stomach is
a)
physical change
b)
chemical change
20.
What could be occurring between point B and C?
a)
melting
b)
material is getting softer
c)
freezing
d)
material is warming up
21.
What could be occurring at point E?
a)
boiling
b)
material is getting softer
c)
freezing
d)
material is warming up
22.
What is the volume of the fish?
a)
18.0 cm3
b)
6.0 cm3
c)
38.0 cm3
23.
Which liquid is the most dense?
a)
oil
b)
water
c)
syrup
d)
plastic bottle
24.
Density is...
a)
the amount of mass in an object
b)
the amount of space an object takes up
c)
the amount of mass in a given space
d)
the weight of an object
25.
Here are 5 cubic centimeters (cm3). All together they have a mass of 20 g what is the density?
a)
20 g/cm3
b)
80 grams
c)
4 g/cm3
d)
80 g/cm3
26.
What subatomic particle identifies an atom?
a)
protons
b)
neutrons
c)
electrons
d)
neutrinos
27.
What does the 1.00794 stand for?
a)
Hydrogen
b)
atomic number
c)
atomic mass
d)
atomic explosion
28.
What is the number of protons that the element in this image contain?
a)
14
b)
7
c)
15
d)
18
29.
Which particle does not contribute mass to the atom?
a)
Proton
b)
Neutron
c)
Electron
d)
Nucleus
30.
Silicon has how many neutrons?
a)
14
b)
15
c)
28.09
d)
1
31.
Two atoms of the same element but with different mass numbers are called________
a)
electrons
b)
isotopes
c)
variables
d)
electron cloud
32.
What is the formula for aluminum fluoride?
a)
AlF
b)
Al2F3
c)
AlF3
d)
Al3F2
33.
How many valence electrons does a bromine atom have?
a)
1
b)
2
c)
6
d)
7
34.
Metals tend to
a)
gain electrons
b)
lose electrons
35.
What is the oxidation number for Gold in the formula AuO2?
a)
+2
b)
+1
c)
+4
d)
(II)
36.
What is the FORMULA for....
beryllium iodide
beryllium iodide
a)
Be2I
b)
BeI
c)
BeI2
d)
BI2
37.
Which of the following atoms could this electron dot diagram represent?
a)
Carbon
b)
Chlorine
c)
Argon
d)
Beryllium
38.
This is used to represent the number of each atom being represented.
a)
A Exponent
b)
The Coefficient
c)
A Molecule
d)
The Subscript
39.
How many hydrogen atoms are in this chemical formula:
a)
4 hydrogen atoms
b)
1 hydrogen atom
c)
2 hydrogen atoms
d)
3 hydrogen atoms
40.
Which of the following is a compound?
a)
Co
b)
O2
c)
C
d)
CO2
41.
Is this balanced?
Al + O2 → 2Al2O3
Al + O2 → 2Al2O3
a)
Yes
b)
No
42.
What is the right part of a chemical equation called?
H2 + O → H2O
H2 + O → H2O
a)
Reactants
b)
Products
c)
Yields
d)
Chemical Equation
43.
Name CCl4
a)
carbon carbon tetraiodide
b)
carbon tetrachloride
c)
monocarbon tetrachloride
d)
water
44.
What is the prefix for 8?
a)
non
b)
tri
c)
di
d)
oct
45.
Name SO2
a)
monosulfur dioxide
b)
sulfur dioxide
c)
sulfur oxide
d)
sulfur (II) oxide
46.
Which of the following is a sign that a chemical reaction has occurred?
a)
change in shape
b)
melting
c)
formation of a gas
d)
dissolving
47.
Cations are
a)
positive
b)
negative
c)
on the right side of the periodi table.
d)
nonmetals
48.
What charge will an Oxygen ion have?
a)
+1
b)
-1
c)
+2
d)
-2
49.
Which of the following would produce an anion?
a)
Ca
b)
Al
c)
K
d)
F
50.
3Ca + 2AlCl3 --> 3CaCl2 + 2Al
a)
Synthesis
b)
Decomposition
c)
Single diplacement
d)
Double displacement
100 %
