WorksheetsPhysical Science Midterm
Total questions: 69
Worksheet time: 35mins
Name
Class
Date
1.
The SI unit for mass is the
a)
meter
b)
kilogram
c)
second
d)
Kelvin
2.
An example of qualitative data would be
a)
The stop sign is red
b)
The average score on the test was a 81%
c)
A football field is 100 yds
d)
There are 13 students in first period
3.
Science can answer questions about what is right and what is wrong (questions about morals)
a)
True
b)
False
4.
Which shows 0.0000519 expressed in scientific notation
a)
5.19 * 10^-5
b)
5.19 * 10^5
c)
.5.9 * 10^-4
d)
.519 * 10^4
5.
How many significant figures are in the measurement: 9.0060g?
a)
5
b)
2
c)
3
d)
4
e)
6
6.
A cheetah can run up to 60 miles per hour. How fast is that in meters per second? (1 mi=1609 m)(1 hr= 3600s)
a)
19.2 m/s
b)
26.8 m/s
c)
21.65 m/s
d)
32.4 m/s
7.
Controlled experiments include variables. Which statement describes the difference between an independent variable and a dependent variable?
a)
The dependent variable does not change, and the independent variable does change.
b)
The independent variable does not change and neither does the dependent variable.
c)
The dependent variable is the control, and the independent variable is the result.
d)
The independent variable is what you are testing and the dependent variable is the result of that change.
8.
Select the hypothesis written in the correct format
a)
Rain falls after clouds form
b)
The grass grows because I use fertilizer
c)
If the amount of sunlight increases, then the plants will grow taller
d)
Giving little kids candy makes them more energetic
9.
What is the independent variable?
a)
CO2 concentration
b)
Year
c)
Atmospheric CO2 Concentration
10.
Select all of the following that are made up of matter
a)
Pizza
b)
Air
c)
iPhones
d)
Space (without planets or stars)
e)
Energy
11.
Which of the following is not a pure substance
a)
H₂O
b)
CO₂
c)
Fe
d)
Wood
12.
All of the following are compounds except
a)
NaCl
b)
NaHCO₃
c)
NaH₂
d)
O₃
13.
Which of the following BEST describes H₂?
a)
element
b)
molecule
c)
compound
14.
How many total atoms of oxygen are there in 2Cu₃(PO₄)₂?
a)
2
b)
4
c)
8
d)
16
15.
All of the following are signs a chemical change is occuring except
a)
Bubble or fizz form
b)
An object breaks in half
c)
There is an unexpected color change
d)
An odor is produced
e)
Heat is produced
16.
What kind of change is exemplified when iron is rusting
a)
physical change
b)
chemical change
17.
What kind of change is occuring when you boil water
a)
physical change
b)
chemical change
18.
The amount of particle motion in a substance is dependent upon the state or phase of matter. Which of the following objects would experience the least amount of motion?
a)
Star
b)
Steam
c)
Soda
d)
Book
19.
Which of the following organizes the phases of matter from the LEAST particle motion to the GREATEST particle motion?
a)
plasma, gas, liquid, solid
b)
solid, liquid, gas, plasma
c)
plasma, solid, liquid, gas
d)
solid, plasma, gas, liquid
20.
Which of the following are true? Choose all that apply.
a)
When you transfer energy in, molecules slow down and move in place.
b)
When you transfer energy out, molecules slow down and move in place.
c)
When you transfer energy in, molecules speed up and move around each other.
d)
When you transfer energy out, molecules speed up and move around each other.
21.
Image B (the second one) has which of the following properties
a)
Definite Shape and Definite Volume
b)
Definite Shape and Indefinite Volume
c)
Indefinite Shape and Definite Volume
d)
Indefinite Shape and Indefinite Volume
22.
The measure of the average kinetic energy of the particles in an object is
a)
Temperature
b)
Pressure
c)
Kinetic Energy
d)
Potential Energy
23.
Choose all of the following phase changes where the substance loses energy
a)
melting
b)
condensation
c)
sublimation
d)
evaporation
e)
freezing
24.
What state of matter would the substance be in at Point C?
a)
Solid
b)
Liquid
c)
Gas
25.
Which point on the graph shows where evaporation/vaporization is occurring?
a)
Point A
b)
Point B
c)
Point C
d)
Point D
e)
Point E
26.
The atomic number is equal to the number of
a)
protons
b)
neutrons
c)
protons + neutrons
d)
protons + electrons
27.
What is the mass of an ion that has 32 protons, 30 electrons, and 33 neutrons?
a)
32 amu
b)
62 amu
c)
63 amu
d)
65 amu
28.
Which scientist did the Gold Foil experiment and discovered that the atom had a dense positively charged center surrounded by space containing negative electrons?
a)
Neils Bohr
b)
J Thompson
c)
Democritus
d)
Rutherford
29.
Using the model and the periodic table in your reference table, answer the following questions. What element does the Bohr model represent?
a)
Phosporus
b)
Carbon
c)
Silicon
d)
Oxygen
e)
Surfer
30.
A Ca2+ ion differs from a Ca atom in that the Ca2+ ion has __________________.
a)
more protons
b)
fewer protons
c)
more electrons
d)
fewer electrons
31.
How many protons and neutrons are in this isotope of copper?
a)
63 protons, 29 neutrons
b)
29 protons, 34 neutrons
c)
34 protons, 29 neutrons
d)
29 protons, 63 neutrons
32.
What is the atomic mass of the isotope of manganese (Mn) containing 28 neutrons?
a)
25
b)
28
c)
50
d)
53
33.
An element has an atomic number of 53, a mass of 127, and its charge is -1. How many protons, neutrons, and electrons are present?
a)
53 protons, 54 electrons, and 74 neutrons
b)
54 protons, 53 electrons, and 53 neutrons
c)
53 protons, 52 electrons, and 74 neutrons
d)
53 protons, 52 electrons, and 53 neutrons
34.
What is the correct electron configuration for Nickle (Ni)?
a)
1s2 2s2 2p6 3s2 3p6 4s2 4d8
b)
1s2 2s2 2p6 3s2 3p5 4s2 3d8
c)
1s2 2s2 2p6 3s2 3p6 4s2 3d8
d)
1s2 2s2 2p6 3s1 3p6 4s2 4d8
35.
An atom of magnesium has 12 protons, 13 electrons, and 12 neutrons. Is the element neutral, an ion, an isotope, or both an ion and isotope?
a)
neutral
b)
an ion
c)
an isotope
d)
both an ion and a isotope
36.
What is the correct noble gas electron configuration for Yttrium (Y)?
a)
[Xe] 6s²
b)
[Kr] 5s²5d¹
c)
[Ar] 4s¹ 3d⁵
d)
[Kr] 5s² 4d¹
37.
How is a group oriented on the periodic table?
a)
in rows
b)
in columns
c)
in diagonals
d)
in periods
38.
Atoms of elements in the same group of the periodic table share the same
a)
number of energy levels
b)
atomic numbers
c)
number of valence electrons
d)
atomic masses
39.
Select all of the elements that are shiny and a good conductor of electricity
a)
Hydrogen
b)
Neon
c)
Aluminium
d)
Copper
e)
Chlorine
40.
Elements that are soft, shiny, and react violently with water belong to which family?
a)
Alkaline Earth metals
b)
Alkali metals
c)
Transition metals
d)
halogens
41.
Select the all of the properties of metals
a)
malleable
b)
shiny
c)
conducts heat
d)
conducts electricity
e)
dull
42.
Elements in this family react easily with metals to form salts
a)
Transition Metals
b)
Nobel gasses
c)
Alkaline Earth Metals
d)
Alkali metals
e)
halogens
43.
An element located in group 6 of the periodic table would be
a)
oxygen
b)
chromium
c)
vanadium
d)
barium
44.
If an element has luster but is brittle, what type of element is it?
a)
metal
b)
nonmetal
c)
metalloid
45.
Which of the following statements are incorrect?
a)
Nonmetals tend to lose electrons to form negative ions
b)
Metals tend to lose electrons to form positive ions
c)
Nonmetals tend to gain electrons to form negative ions
d)
Group 14 elements generally do not form ions
46.
How many valance electrons does Sulfur have?
a)
6
b)
1
c)
2
d)
3
e)
4
47.
The formation of an ionic bond involves the...
a)
sharing of electrons.
b)
transfer of protons.
c)
transfer of electrons.
d)
sharing of protons.
48.
An ionic bond could occur between which two elements?
a)
Hydrogen and Oxygen
b)
Carbon and Carbon
c)
Potassium and Magnesium
d)
Lithium and Fluorine
49.
Ionic bonds tend to form between two atoms with what characteristics?
a)
Both atoms complete an electron shell by sharing one electron
b)
Both atoms have a charge because they have lost or gained an electron
c)
One atom has a strong negative charge and the other atom is neutral
d)
One atom is a pure element and the other atom is a compound
50.
When ionic bonds are formed, metals tend to
a)
lose electrons and become positive ions
b)
lose electrons and become negative ions
c)
gain electrons and become negative ions
d)
gain electrons and become positive ions
51.
A covalent bond will _________________ electrons and is between ____________________________.
a)
share; metals and nonmetals.
b)
transfer; metals and nonmetals.
c)
transfer; nonmetals and nonmetals.
d)
transfer; all metals
e)
share; nonmetals and nonmetals.
52.
What type of bond would form between CaO?
a)
Ionic Bond
b)
Covalent Bond
c)
Metallic Bond
d)
Hydrogen Bond
53.
What type of bond would form between H2O?
a)
Ionic Bond
b)
Polar Colvalent Bond
c)
Nonpolar Covalent Bond
d)
Metallic Bond
54.
A covalent bond in which there is an unequal attraction for the shared electrons is
a)
nonpolar
b)
polar
c)
ionic
d)
dipolar
55.
Electronegativity is defined as the tendency of an atom to
a)
donate electrons to other atoms in a chemical bond
b)
share electrons equally with other atoms
c)
lose its valence electrons to become an ion
d)
attract electrons towards itself in a chemical bond
56.
An anion always
a)
forms covalent bonds.
b)
contains a group of two or more atoms with a positive charge.
c)
has a negative charge.
d)
has a positive charge.
e)
contains a metal and a nonmetal.
57.
The octet rule indicates that
a)
all of the Group A elements have 8 valence electrons.
b)
all of the noble gases have eight total electrons
c)
the noble gases react with other compounds to get 8 valence electrons.
d)
all of the shells in an atom hold a maximum of 8 electrons.
e)
atoms lose, gain, or share valence electrons to have 8 valence electrons.
58.
The correct formula for a compound formed from the elements Al and O is (think is it ionic or covalent)
a)
Al3O2
b)
AlO3
c)
Al2O
d)
Al2O3
59.
If Magnesium and Florine were to ionically bond, how many Magnesium atoms would there be and how many Florine atoms would there be?
a)
1 Magnesium atom and 2 Florine atoms
b)
2 Magnesium atoms and 1 Florine atom
c)
3 Magnesium atoms and 2 Florine atoms
d)
2 Magnesium atoms and 3 Florine atom
60.
An ionic compound, that is formed after an ionic bond takes place, will have no net charge.
a)
True
b)
False
61.
Oxygen would most likely form an ionic bond with which of the following elements (without adding additional atoms of either elements)?
a)
Calcium
b)
Potassium
c)
Hydrogen
d)
Sulfur
62.
Carbon atoms often participates in ionic bonding
a)
True
b)
False
63.
The strongest type of bond is
a)
a van der waals interaction
b)
a hydrogen bond
c)
an ionic bond
d)
a covalent bond
64.
What would be the correct chemical reaction for this compound?
a)
[K+] + [Br-] --> KBr
b)
[K-] + [Br+] ---> KBr
c)
[Na+] + [Cl-] ---> NaCl
d)
[Na-] + [Cl+] ----> NaCl
65.
If two different atoms had almost no difference in electronegativity, what kind of bond would those atoms form?
a)
hydrogen bond
b)
polar covalent bond
c)
nonpolar covalent bond
d)
ionic bond
66.
Balance the following equation and choose the answer with the correct coefficients:
___B + ____ F2 -> ____ BF3
a)
2, 1, 1
b)
2, 3, 2
c)
6, 3, 2
d)
1, 1, 1
67.
Balance the following equation and choose the answer with the correct coefficients:
____ NCl3 → ____ N2 + ____Cl2
a)
2, 1, 3
b)
2, 3, 1
c)
1, 1, 1
d)
2, 2, 3
68.
Is this equation balanced?
a)
The left side is
b)
yes
c)
no
d)
not enough information to tell
69.
Did you do the following:
1. Read over all directions carefully
2. Check your work
3. Answer all questions
4. Ask a staff member to clarify any questions about an exam question you may have
a)
Yes, I did all of the above
b)
No, I did not do the above
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