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WorksheetsFinal Exam Review
Total questions: 104
Worksheet time: 2hrs 6mins
Name
Class
Date
1.
Jayden asked Gabe what she could do to an egg for a chemical change. Gabe answered correctly and said...
a)
You can scramble the egg.
b)
You can cook the egg.
c)
You can crack the egg.
d)
You can paint the egg.
2.
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
3.
Is burning wood a chemical or physical change?
a)
chemical
b)
physical
4.
Is hammering wood together to build a house a chemical or physical change?
a)
chemical
b)
physical
5.
Which of the following is NOT an example of a physical change?
a)
crumpled paper
b)
pencil sharpening
c)
shrunken clothing
d)
sour milk
6.
Is melting butter for popcorn a chemical or physical change?
a)
chemical
b)
physical
7.
Is bleaching your hair a physical or chemical change?
a)
physical
b)
chemical
8.
Is making salt water to gargle with a physical or chemical change?
a)
physical
b)
chemical
9.
A change in the size, shape, or state of matter.
a)
chemical change
b)
physical change
c)
chemical reaction
d)
electron change
10.
If you dissolved a lot of salt in some water in a large dish and put the dish in bright sunlight on a hot day, what would be left in the dish after a long time?
a)
dry salt
b)
water with no salt
c)
the same salty water as before
d)
nothing
11.
Kim puts an ice cube in a beaker and it melts. This is a good example of:
a)
a physical change.
b)
a chemical change.
c)
an experiment.
d)
an analysis.
12.
Photosynthesis is an example of a
a)
physical change
b)
chemical change
13.
When you break a cracker into pieces it is a
a)
chemical change
b)
physical change
c)
chemical Weathering
d)
physical Weathering
14.
Particles in an atom that are neutral and have no charge are
a)
negatrons
b)
electrons
c)
neutrons
d)
protons
15.
An atom with atomic number 6 would have how many protons
a)
6
b)
12
c)
3
d)
cannot be determined
16.
The central region of an atom where its neutrons and protons are is its
a)
nucleus
b)
electron cloud
c)
core
d)
center
17.
The positive particles of an atom are
a)
electrons
b)
positrons
c)
neutrons
d)
protons
18.
Electrons have this type of charge...
a)
negative
b)
positive
c)
neutral
19.
An isotope is an atom with the same number of protons as other atoms of the same element but a different number of ________.
a)
neutrons
b)
electrons
c)
nuclei
20.
What is the atomic number for an element with three protons?
a)
2
b)
1
c)
3
d)
6
21.
Which statement best describes an electron?
a)
Smaller mass than a proton and a negative charge
b)
Smaller mass than a proton and a positive charge
c)
Greater mass than a proton and a negative charge
d)
Greater mass than a proton and a positive charge
22.
Most of the mass in an atom is concentrated in the...
a)
electrons
b)
nucleus
c)
protons
d)
empty space
23.
What does the nucleus consist of?
a)
Protons + Electrons
b)
Neutrons + Electrons
c)
Atoms
d)
Protons + Neutrons
24.
Which particle has a similar mass to a proton?
a)
Electron
b)
Neutron
c)
Photon
d)
Marble
25.
The smallest part of an element is known as the
a)
Periodic Table
b)
Atom
c)
Group
d)
Period
26.
What is the number of protons that the element in this image contain?
a)
14
b)
7
c)
15
d)
18
27.
The first energy level can hold up to how many electrons?
a)
8
b)
4
c)
2
d)
5
28.
The second energy level can hold up to how many electrons?
a)
2
b)
8
c)
10
d)
12
29.
What is the atomic mass of Fluorine?
a)
9
b)
18
c)
17
d)
19
30.
What are the 3 particles that make-up an atom?
a)
protons, neutrons, and isotopes
b)
neutrons, isotopes, and electrons
c)
positives, negatives, and electrons
d)
protons, neutrons, and electrons
31.
Elements that have properties of both metals and nonmetals are _____
a)
metals
b)
metalloids
c)
nonmetals
32.
How many Hydrogen atoms are in water (H2O)?
a)
1
b)
2
c)
3
d)
4
33.
Two or more substances not chemically combined
a)
element
b)
compound
c)
molecule
d)
mixture
34.
A pure substance containing two or more different kinds of atoms.
a)
element
b)
mixture
c)
compound
35.
A pure substance containing only one kind of atom.
a)
element
b)
mixture
c)
compound
36.
Examples are water (H2O) and carbon dioxide (CO2).
a)
elements
b)
mixtures
c)
compounds
37.
Examples are milk and gasoline.
a)
elements
b)
mixtures
c)
compounds
38.
This picture represents which of the following?
a)
element
b)
compound
c)
mixture
39.
What is salad?
a)
an element
b)
a compound
c)
a mixture
40.
What is gold?
a)
an element
b)
a compound
c)
a mixture
41.
What is krypton?
a)
an element
b)
a compound
c)
a mixture
42.
What is sugar?
a)
an element
b)
a compound
c)
a mixture
43.
Is this equation balanced?
a)
yes
b)
no
c)
Not enough information
44.
Is this equation balanced?
a)
yes
b)
no
c)
Not enough information
45.
Is this equation balanced?
a)
yes
b)
no
c)
Not enough information
46.
Is this equation balanced?
a)
yes
b)
no
c)
Not enough information
47.
What is a coefficient?
a)
The small number on the right of the chemical symbol.
b)
The large number to the left of a chemical formula.
48.
What is a yield sign?
a)
The arrow in an equation that separates the reactants from the products and indicates a chemical reaction taking place
b)
The substances on the left side of the arrow in a chemical equation
c)
The substances on the right side of the arrow in a chemical equation
49.
Where can the products be found in a chemical equation?
a)
The substances on the right side of the yield sign
b)
The substances on the left side of the yield sign
50.
Where can the reactants be found in a chemical equation?
a)
The substances on the left side of the yield sign
b)
The subtances on the right side of the yield sign
51.
Balance this equation,
Ca + H2O -> CaO + H2
Ca + H2O -> CaO + H2
a)
Ca + 2H2O --> CaO + 2H2
b)
2Ca + H2O --> CaO + H2
c)
It's already balanced
d)
Cannot be balanced
52.
In the equation, 2Mg + O2 ---> 2MgO, which are the reactants?
a)
Mg and O
b)
MgO
c)
Mg and MgO
d)
O and MgO
53.
Which of the following is NOT an element?
a)
H2O
b)
H2
c)
O2
d)
Au
54.
How many elements are in H2O?
a)
1
b)
2
c)
3
d)
4
55.
Which is the correct formula for:
one carbon (C)
two oxygen (O)
one carbon (C)
two oxygen (O)
a)
CO2
b)
CO
c)
C2O
d)
2CO
56.
Which is the correct formula for:
three hydrogen (H)
one sulfur (S)
four oxygen (O)
three hydrogen (H)
one sulfur (S)
four oxygen (O)
a)
H3SO4
b)
HSO4
c)
H4S3O
d)
H2O
57.
How many atoms of carbon (C) are in C6H12O6?
a)
3
b)
6
c)
12
d)
24
58.
How many elements are in C6H12O6?
a)
1
b)
2
c)
3
d)
4
59.
How many O's are in Al₂(SO₄)₃
a)
4
b)
12
c)
7
d)
24
60.
What is the smallest part of a compound that still has the properties of the compound?
a)
element
b)
molecule
c)
atom
d)
nucleus
61.
How many Magnesium (Mg) atoms are in 10MgCl2?
a)
10
b)
5
c)
20
d)
1
62.
How many Sodium (Na) atoms are in 6NaCl?
a)
1
b)
12
c)
6
d)
7
63.
How many atoms are there TOTAL in:
H2SO4
H2SO4
a)
6
b)
5
c)
7
d)
3
64.
Water boils at...
a)
373º C
b)
32º C
c)
100º C
d)
200º C
65.
Heat flows from...
a)
hot to cold.
b)
cold to hot.
c)
hot to hot.
d)
cold to cold.
66.
Water freezes at...
a)
0º C
b)
32º C
c)
47º C
d)
-1º C
67.
The diagram is an example of which of the following?
a)
Convection
b)
Conduction
c)
Radiation
68.
The diagram is an example of which of the following?
a)
Convection
b)
Conduction
c)
Radiation
69.
The diagram is an example of which of the following?
a)
Convection
b)
Conduction
c)
Radiation
70.
Which has the most thermal energy?
a)
The teacup.
b)
The bucket.
71.
Chris has to build a fire to keep the campers warm. The heat transfer from the fire keeps the campers warm due to:
a)
Conduction
b)
Convection
c)
Radiation
72.
A girl’s hands become warm after holding a mug of hot coffee. What process explains this?
a)
Conduction
b)
Convection
c)
Radiation
73.
This picture shows warm air rising and cool air falling in a cycle. This is an example of which process?
a)
Conduction
b)
Convection
c)
Radiation
74.
What is speed?
a)
how far you go
b)
how much distance is covered over a period of time
c)
how fast you accelerate
d)
the change in the location of a object
75.
What is velocity?
a)
the quickness of an object
b)
the location of an object
c)
acceleration
d)
speed in a specific direction
76.
The correct equation to calculate speed is
a)
distance/time
b)
time/distance
c)
distance x time
d)
distance/time2
77.
Which of the following is a way to measure speed?
a)
miles/hour
b)
centimenters
c)
hours/kilometer
d)
kilometers
78.
If a cheetah runs 180 miles in 3 hours, what is its speed?
a)
60 hours
b)
60 miles
c)
60 miles/hour
d)
60 hours/mile
79.
A jogger was jogging down Main Street at a speed of 5 kilometers per hour.
a)
Speed
b)
Velocity
80.
A jogger was jogging 5 kilometers each hour.
a)
Speed
b)
Velocity
81.
Which car is accelerating?
a)
A car that is not moving
b)
A car that rounds a curve at a constant speed
c)
A car traveling at a constant speed
d)
A car that has a set speed of 60mph
82.
How far has the red runner gone in 3 seconds?
a)
40 yards
b)
10 yards
c)
30 yards
d)
20 yards
83.
The term inertia means an object's resistance to change in its motion. Which of Newton's laws involves inertia?
a)
first
b)
second
c)
third
d)
fourth
84.
Which of Newton's laws is illustrated when a magician pulls a tablecloth out from under the dishes without disturbing them?
a)
first
b)
second
c)
third
d)
fourth
85.
Your balloon car released air out of the straw in one direction and your car moved in the opposite direction. Which of Newton's laws is this?
a)
first
b)
second
c)
third
d)
fourth
86.
The swimmer moves her hand down and to the left and her body goes forward to the right.
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
87.
Pushing a child on a swing is easier than pushing an adult on the same swing.
a)
1st Law
b)
2nd Law
c)
3rd Law
88.
What is the force applied to all objects on Earth?
a)
Earthquakes
b)
Gravity
c)
Volcanoes
d)
Momentum
89.
A(n) __________ is a push or pull.
a)
newton
b)
acceleration
c)
force
d)
momentum
90.
____ is the rubbing force that acts against motion between two touching surfaces.
a)
Acceleration
b)
Normal force
c)
Momentum
d)
Friction
91.
According to Newton's First Law, an object's velocity will not change unless _____ acts upon it.
a)
a balanced force
b)
an unbalanced force
c)
zero force
92.
A ball thrown at the ground bounces back up.
a)
Law of Inertia (1st Law)
b)
Law of Mass and Acceleration (2nd law)
c)
Law of Action Reaction (3rd Law)
93.
A soccer ball accelerates more than a bowling ball when thrown with the same force.
a)
1st Law
b)
2nd Law
c)
3rd Law
94.
Forces can be
a)
balanced only
b)
unbalanced only
c)
balanced or unbalanced
95.
What is the name for a push or pull?
a)
A movement
b)
A force
c)
Speed
d)
Density
96.
What is Newton's First Law of Motion?
a)
The amount fo force needed to accelerate an object depends on the mass of the object
b)
Every action has an equal and opposite reaction
c)
An object at rest stays at rest, an object in motion stays in motion until an unbalanced force acts on it
d)
Friction
97.
What is Newton's Second Law of Motion?
a)
The amount fo force needed to accelerate an object depends on the mass of the object
b)
Every action has an equal and opposite reaction
c)
An object at rest stays at rest, an object in motion stays in motion until an unbalanced force acts on it
d)
Friction
98.
What is Newton's Third Law of Motion?
a)
The amount fo force needed to accelerate an object depends on the mass of the object
b)
Every action has an equal and opposite reaction
c)
An object at rest stays at rest, an object in motion stays in motion until an unbalanced force acts on it
d)
Friction
99.
How will this object move?
a)
It won't move.
b)
It will move to the right.
c)
It will move to the left.
d)
It will move up.
100.
How will this object move?
a)
It won't move.
b)
It will move to the right.
c)
It will move to the left.
d)
It will move in both directions.
101.
What is the Law of Conservation of mass?
a)
Mass is created in a chemical reaction
b)
Mass is created in a physical change
c)
New chemicals formed from a chemical reaction have a larger overall mass than the original reactants
d)
Mass is never created or destroyed
102.
Energy can be created.
a)
True
b)
False
103.
Energy cannot be destroyed.
a)
True
b)
False
104.
The Law of Conservation of Energy states:
a)
Energy can created or destroyed but not transformed
b)
Energy cannot be created or destroyed, it can only transformed
c)
Energy can't be created, destroyed or transformed
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