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WorksheetsUnit 2 Test Review
Total questions: 49
Worksheet time: 25mins
Name
Class
Date
1.
When temperature increases, average _________ increases.
a)
potential energy
b)
kinetic energy
c)
gravitational potential energy
d)
total energy
2.
In years past, people would put a hot water bottle in bed with them to help warm their feet. The transfer of the warmth from the water bottle to their feet is called __________ .
a)
heat
b)
temperature
c)
thermal energy
d)
kinetic energy
3.
Temperature is a measure of _________ of the particles in an object.
a)
the difference between the potential and kinetic energy
b)
the sum of the potential and kinetic energy
c)
the average potential energy
d)
the average kinetic energy
4.
The thermal energy of an object is ___________ .
a)
its potential energy
b)
its average kinetic energy
c)
its potential energy minus its kinetic energy
d)
its kinetic energy plus its potential energy
5.
Heat is thermal energy transferred from one object to another because of a difference in __________ .
a)
mass
b)
temperature
c)
volume
d)
potential energy
6.
Heat is _________ energy that is transferred from one object at a certain temperature to another at a different temperature.
a)
kinetic
b)
thermal
c)
solar
d)
electromagnetic
7.
Most materials __________ when they are heated.
a)
condense
b)
freeze
c)
expand
d)
contract
8.
Heat always moves from ________ objects to _________ objects.
a)
cooler, cooler
b)
warmer, cooler
c)
cooler, warmer
d)
warmer, warmer
9.
When water is heated on a stove, which kind of energy is transferred?
a)
gravitational energy
b)
kinetic energy
c)
potential energy
d)
thermal energy
10.
Lightning flashes contain which of the following types of matter?
a)
solids
b)
liquids
c)
gases
d)
plasmas
11.
To calculate the density of a sample of matter, you must divide its _________ by its _________ .
a)
volume, mass
b)
volume, volume
c)
mass, mass
d)
mass, volume
12.
Adding thermal energy to a cup of water can cause the __________ .
a)
particles to move faster
b)
particles to get farther apart
c)
particles to move faster or get farther apart or both
d)
particles to remain constant
13.
A change in the state of matter is caused if enough __________ is added to or removed from an object.
a)
thermal energy
b)
kinetic energy
c)
potential energy
d)
force
14.
During a hot shower, water vapor fogs up the cooler mirror when it turns to water. This is an example of _______ .
a)
condensation
b)
deposition
c)
sublimation
d)
vaporization
15.
Dry ice is a solid that changes directly to a gas when thermal energy is added. This is an example of _________ .
a)
condensation
b)
deposition
c)
sublimation
d)
vaporization
16.
The amount of force applied per unit area is __________ .
a)
sublimation
b)
pressure
c)
thermal energy
d)
viscosity
17.
Change in state of a liquid into a gas is _________ .
a)
surface tension
b)
pressure
c)
vaporization
d)
viscosity
18.
Change of state from a solid to a gas without going through the liquid state is __________ .
a)
vaporization
b)
pressure
c)
viscosity
d)
sublimation
19.
Energy an object has due to its motion is _____________ .
a)
kinetic molecular theory
b)
kinetic energy
c)
thermal energy
d)
temperature
20.
The explanation of how particles in matter behave is called the ___________ .
a)
thermal energy
b)
kinetic energy
c)
kinetic molecular theory
d)
vaporization
21.
The measure of the average kinetic energy of all the particles in an object is _________ .
a)
thermal energy
b)
temperature
c)
kinetic energy
d)
potential energy
22.
The measurement of a liquid's resistance to flow is called _________ .
a)
vaporization
b)
temperature
c)
viscosity
d)
surface tension
23.
The pressure of a gas increases if the volume decreases and pressure of a gas decreases if the volume increases, when temperature is constant is known as _____________ .
a)
Boyle's law
b)
kinetic molecular theory
c)
Charles' Law
d)
kinetic energy
24.
The total potential and kinetic energy of an object is known as __________ .
a)
kinetic energy
b)
thermal energy
c)
potential energy
d)
gravitational potential energy
25.
Uneven forces acting on the particles on the surface of a liquid
a)
viscosity
b)
surface tension
c)
temperature
d)
pressure
26.
Volume of a gas increases with increasing temperature, if the pressure is constant is known as __________ .
a)
Boyle's Law
b)
kinetic molecular theory
c)
Charles' Law
d)
thermal energy
27.
Macro put a pot of water on to boil eggs. After a few minutes, all the water was gone. This is an example of _________ .
a)
condensation
b)
deposition
c)
sublimation
d)
vaporization
28.
Snow forms in clouds because water vapor changes directly to ice. This is an example of ___________ .
a)
condensation
b)
deposition
c)
sublimation
d)
vaporization
29.
Kinetic energy is the ________ of motion.
a)
temperature
b)
energy
c)
heat
d)
state
30.
Which of the following is NOT an idea in the kinetic molecular theory?
a)
small particles make up all matter
b)
the particles in matter are in constant, random motion
c)
the particle in matter collide with other particles, other objects, and walls the walls of their container
d)
when particles in matter collide energy is lost.
31.
The amount of force that is exerted on a balloon by a gas inside the balloon is ________ .
a)
temperature
b)
pressure
c)
volume
d)
heat
32.
As the space in a container gets smaller, the __________ decreases.
a)
pressure
b)
temperature
c)
volume
d)
heat
33.
Elements found on the far right of the periodic table in Group 18, are referred to as ________ and are chemically stable.
a)
metals
b)
nonmetals
c)
metalloids
d)
noble gases
34.
In general, nonmetals are __________ .
a)
good conductors of electricity
b)
malleable and ductile
c)
good conductors of heat
d)
gases at room temperature
35.
The particles that make up an atom are _________ .
a)
electrons, protons, and nuclei
b)
elements, protons, and electrons
c)
protons, neutrons, and nuclei
d)
protons, neutrons, and electrons
36.
Which of the following is a compound?
a)
gold
b)
oxygen
c)
neon
d)
water
37.
This formula shows the chemical reaction that occurs when the body breaks down sugar. How many carbon atoms are needed for this reaction to take place?
C6H12O6 + 6O2 ----> 6CO2 + 6H2O
C6H12O6 + 6O2 ----> 6CO2 + 6H2O
a)
1
b)
2
c)
6
d)
12
38.
Aspartame is an artificial sweetener; its formula is C13H16N2O5. Which element in the formula has the greatest number of atoms?
a)
Carbon
b)
Hydrogen
c)
Nitrogen
d)
Oxygen
39.
According to the law of conservation of mass, three atoms of calcium can react to produce six atoms of calcium.
a)
True
b)
False
40.
When a chemical equation contains the same number of atoms on both sides, the equations is balanced.
a)
True
b)
False
41.
Each substance written to the right of the arrow in a chemical equations is a __________ .
a)
reactant
b)
product
c)
precipitate
d)
catalyst
42.
According to the law of conservation of mass, how does the mass of the products in a chemical reaction compare to the mass of the reactants?
a)
There is no relationship
b)
The mass of the products is sometimes greater.
c)
The mass of the reactants is greater.
d)
The masses are always equal.
43.
Which of the following is NOT a result of a chemical reaction?
a)
bubbles in boiling water
b)
a solid forming from two liquids reacting
c)
copper turning green when exposed to air
d)
the light given off by a firefly
44.
Some baking soda and vinegar were weighed separately and the weights added together. The two substances are mixed and a chemical reaction occurred, producing carbon dioxide, sodium acetate, and water. When the three new substances are weighed and the weights totaled, which of the following will be true?
a)
The original weight will be more because there is more mass
b)
The new weights will be more because there is more mass.
c)
The two weights will be equal, because the mass is the same.
d)
There is no way to know, because changes in mass are random.
45.
Which of the following changes is chemical rather than physical?
a)
Water is boiled
b)
Aluminum foil is crumpled
c)
Glass is shattered
d)
Wood is burned
46.
An exothermic reaction ____________ .
a)
absorbs thermal energy
b)
needs energy to be added constantly in order to continue
c)
releases thermal energy
d)
needs more energy to break the chemical bonds than is released when products form.
47.
Endothermic reactions _____________ .
a)
release more energy than they absorb
b)
absorb more energy than they release
c)
release and absorb exactly the same amount of energy
d)
can either release more energy than they absorb or absorb more energy than they release, depending on the reactions
48.
Breaking a chemical bond __________ .
a)
absorbs energy from the surroundings
b)
releases energy into the surroundings
c)
creates energy that did not previously exist
d)
uses up energy that then no longer exists
49.
Chemical reactions ___________ .
a)
release more energy than they absorb
b)
absorb more energy than they release
c)
release and absorb exactly the same amount of energy
d)
can either release more energy than they absorb or absorb more enrgy than they release, depending on the reaction
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