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KMT, Heat, & Energy

Total questions: 158

Worksheet time: 4hrs 36mins

Name
Class
Date
1.

A liquid that evaporates readily is a __________ liquid.

a)

condensed

b)

frozen

c)

volatile

d)

molar

2.
What line segment represents only the solid state?
a)
A-B
b)
B-C
c)
C-D
d)
D-E
3.
Between which points is the temperature of the substance remaining constant?
a)
A-B only. 
b)
A-B, C-D, E-F
c)
B-C only. 
d)
B-C, D-E
4.
Between which points is the temperature of the substance increasing?
a)
A-B only. 
b)
A-B, C-D, E-F
c)
B-C only. 
d)
B-C, D-E
5.
True or false: melting and freezing occur at the same temperature!
a)
True
b)
False
c)
I don't know
6.
A substance's heating curve is shown in the graph.  What is its boiling point?
a)
100 C
b)
60 C
c)
80 C
d)
20 C
7.
At higher temperatures
a)
particles in an object have less energy
b)
particles in an object move faster
c)
a gas contracts
8.
In which segment is the kinetic energy remaining constant?
a)
A-B
b)
B-C
c)
C-D
d)
E-F
9.
What line segment represents only the solid state?
a)
A-B
b)
B-C
c)
C-D
d)
D-E
10.

Are the particles moving faster or slower as time goes on?

a)

Faster

b)

Slower

11.

What state/phase is the object likely from points A to B?

a)

Solid

b)

Liquid

c)

Gas

d)

Plasma

12.

What is happening to the particles in the substance between points A and B?

a)

Melting

b)

Freezing

c)

Speeding Up

d)

Slowing Down

13.

What is happening to the particles in the substance between points D and E?

a)

Melting

b)

Freezing

c)

Vaporizing

d)

Sublimating

14.

Is the substance gaining or losing energy?

a)

Gaining

b)

Losing

15.

Where on the graph are phase changes taking place?

a)

1

b)

2

c)

3

d)

4

e)

5

16.
Between what two points is the most energy being added to the system
a)
A -B
b)
B-C
c)
C-D
d)
D-E
17.
Which line segment demonstrates vaporization occurring?
a)
B-C
b)
C-D
c)
D-E
d)
E-F
18.
What phase change is occurring at line segment B-C if the graph is exothermic?
a)
melting
b)
freezing
c)
boiling
d)
condensation
19.
As substance goes from D to E what happens to the distance between the particles?
a)
particles get closer together
b)
particles disappear
c)
particles get far apart
20.
At what temperature is this substance melting?
a)
50C
b)
100C
c)
0C
21.
At point temperature does this substance finish melting?
a)
B
b)
C
c)
D
d)
E
22.
How long does it take this substance to change from a liquid to a gas?
a)
1 minute
b)
2 minutes
c)
10 minutes
d)
15 minutes
23.

At Point A, the beginning of observations, the substance exists in a solid state. Material in this phase has a ____________ volume and ___________ shape.

(a)  

24.

With each passing minute, (a)   is added to the substance.

25.

This causes the molecules of the substance to (a)   more rapidly.

26.

We detect this by the (a)   change (rising) in the substance

27.

At POINT B, the temperature is (a)   degrees C.

28.

The solid begins to (a)   .

29.

At POINT C, the substance is completely _____________, or in a ____________ state.

(a)  

30.

Material in this phase has a __________ volume and an _______________ shape.

(a)  

31.

The energy put to the substance between minutes 5 and 9 was used to convert the substance from a ___________ state to a __________ state.

(a)  

32.

Between minute 9 and 13, the added energy increases the (a)   of the substance

33.

During the time from POINT D to POINT E, the liquid is (a)   .

34.

By POINT E, the substance is completely in the (a)   phase.

35.

Material in this phase has _________ volume and ____________ shape.

(a)  

36.

The energy put into the substance between minutes 13 and 18 converted the substance from ___________ to ____________ state.

(a)  

37.

Beyond POINT E, the substance is still in the __________ phase, but the molecules are moving _________ as indicated by the increasing temperature.

(a)  

38.

According to the Kinetic Molecular Theory, gas particles have a force of attraction between one another.

a)

True

b)

False

39.

According to the Kinetic Molecular Theory, gases are in ​ (a)   motion and thus, have a large amount of ​ (b)   energy.

Choose from the below words
constant
kinetic
potential
stationary
40.

According to the Kinetic Molecular Theory, when compared to their surroundings, gas particles are​ (a)   ​ and thus ​ (b)   .

Choose from the below words
small
far apart
large
close together
41.
Question Image

Consider the following image. Match the following images to their names.

a)
1.

Limiting Reagent

b)
2.

Excess Reagent

c)
3.

Product

42.

MgCO3 → MgO + CO2

A decomposition reaction occurs following the formula above. 15.9 g of MgO is recovered at the end of the reaction. If the theoretical yield was calculated to be 17.3 g, what is the percent yield?

a)

108.8%

b)

43.2%

c)

79.3%

d)

91.9%

43.

MgCO3 → MgO + CO2

A decomposition reaction occurs following the formula above. If 25.4 grams of MgCO3 decomposes, how many grams of CO2 are made?

a)

14.67 g

b)

43.50 g

c)

13.26 g

d)

8.4 g

44.

MgCO3 → MgO + CO2

A decomposition reaction occurs following the formula above. According to the reaction above, 25.4 grams of MgCO3 decomposes. If 10.43 grams of CO2 are collected at the end, what is the percent yield? (Hint: Using your answer from the last question, 13.26 grams, calculate the percent yield.)

a)

78.67%

b)

56.34%

c)

92.11%

d)

127.11%

45.

The first postulate of the KMT is that all matter is made up of

a)

tiny particles

b)

molecules

c)

cells

d)

mass

46.

According the KMT, the particles are in

a)

different states

b)

organized patterns

c)

constant motion

d)

various containers

47.

According to the KMT, increasing the temperature of particles will

a)

give off energy

b)

increase motion

c)

decrease volume

d)

increase pressure

48.

According to the KMT, the particles of the different states of matter differ in what two key aspects?

a)

volume and mass

b)

density and extention of interactions

c)

temperature and freedom of motion

d)

freedom of motion and extent of interactions

49.

In a solid, what keeps each particle trapped in the same small volume and with the same surrounding particles.

a)

strong attractions between particles

b)

ionic bonds

c)

lack of particle motion

d)

low temperatures

50.

What does increasing the temperatureof a solid lead to?

a)

increased mass of particles

b)

decreased space between particles

c)

decreased velocity of particles

d)

increased velocity of particles

51.

What is happening when a solid is becoming a liquid?

a)

The particles decrease in motion, collapsing the organized structure.

b)

The increased movement of particles pushes them completely out of position, collapsing the organized structure.

c)

The particles increase in motion, causing the organized structure to flatten into a smaller shape.

d)

A particle party!

52.

How doe the particles in a liquid behave?

a)

Neatly organized without any movement.

b)

Move around trapped in a small volume and with the same surrounding particles.

c)

Move fast enough to break attractions and pushing other particles out of the way.

d)

Move freely in a straight line until they collide with another particle.

53.

How doe the particles in a gas behave?

a)

Neatly organized without any movement.

b)

Move around trapped in a small volume and with the same surrounding particles.

c)

Move fast enough to break attractions and pushing other particles out of the way.

d)

Move freely in a straight line until they collide with another particle.

54.

If the particles are moving fast enough to complete break the attraction pulling it back towards other particles, what process is occuring?

a)

sublimation

b)

melting

c)

freezing

d)

evaporation

55.

When particles in a gas collide, they change

a)

direction and velocity

b)

velocity and temperature

c)

direction and volume

d)

volume and temperature

56.

In which state of matter are the particles the farthest apart?

a)

gas

b)

liquid

c)

solid

57.

Which will heat up faster?

a)

copper

b)

granite

c)

iron

d)

basalt

58.

Which will heat up slower?

a)

water

b)

lead

c)

granite

d)

iron

59.
If I heat up 2 pans of water one has 100 mL in it and one has 1000mL. Which one heats up the fastest?
a)
100 mL
b)
1000 mL
c)
They both heat up at the same speed
d)
They cool down.
60.

Which of the following best explains why the sand at the beach is hotter than the water?

a)

Sand has a higher specific heat than water.

b)

Sand has a lower specific heat than water.

c)

There is more water than sand at the beach.

d)

There is more sand than water at the beach.

61.
When a  piece of aluminum foil is taken out of the oven and cools from 100° to 50°, What is the change in temperature?
a)
50°
b)
0°
c)
100°
d)
150°
62.
How does heat flow?
a)
Always from cold to warm
b)
Always from warm to cold
c)
Both warm to cold & cold to warm
d)
It depends on the temperature
63.

The amount of energy required to raise the temperature 1ºC for every gram is called____?

a)

Thermal Energy

b)

Specific Heat

c)

Temperature

d)

Kinetic Energy

64.
What would be the effect on the particles if more heat is supplied to the system?
a)
They would slow down
b)
They would stop moving
c)
They would speed up
d)
There would be no effect
65.
Copper, Stainless Steel, Carbon Steel, and Zinc were all heated using the same thermal energy.  What material would be the coolest after being heated?
a)
Copper
b)
Carbon Steel
c)
Zinc
d)
Stainless Steel
66.
Specific heat of water is  4.18 J/g°C. Specific heat of wood is 1.760 J/g°C What material needs more heat energy to raise the temperature?
a)
Water
b)
Wood
c)
Both are same
67.
What unit do you use to measure Thermal Energy?
a)
J/Kg ºC
b)
Kg
c)
ºC
d)
J
68.

What letter is used to represent specific heat capacity?

a)

H

b)

P

c)

C

d)

T

69.
What is Specific Heat?
a)
The  amount of thermal energy required to increase the temperature of 1kg of a material by 1°C.
b)
The  amount of radiant energy required to increase the temperature of 1kgof a material by 1°C
c)
The  amount of energy required to increase the temperature of 1kgof a material by 1°C.
d)
The  amount of friction  required to increase the temperature of 1kgof a material by 1°C.
70.
Copper, Stainless Steel, Carbon Steel, and Zinc were all heated using the same thermal energy.  What material would be the coolest after being heated?
a)
Copper
b)
Carbon Steel
c)
Zinc
d)
Stainless Steel
71.

Which will heat up slower?

a)

water

b)

lead

c)

granite

d)

iron

72.

Which will heat up faster?

a)

copper

b)

granite

c)

iron

d)

basalt

73.

Which of the following best explains why the sand at the beach is hotter than the water?

a)

Sand has a higher specific heat than water.

b)

Sand has a lower specific heat than water.

c)

There is more water than sand at the beach.

d)

There is more sand than water at the beach.

74.

The amount of energy required to raise the temperature 1ºC for every gram is called____?

a)

Thermal Energy

b)

Specific Heat

c)

Temperature

d)

Kinetic Energy

75.
What would be the effect on the particles if more heat is supplied to the system?
a)
They would slow down
b)
They would stop moving
c)
They would speed up
d)
There would be no effect
76.
Copper, Stainless Steel, Carbon Steel, and Zinc were all heated using the same thermal energy.  What material would be the coolest after being heated?
a)
Copper
b)
Carbon Steel
c)
Zinc
d)
Stainless Steel
77.

Which material heats up quickest?

a)

Aluminium

b)

Concrete

c)

Diamond

d)

Glass

e)

Water

78.

Which material heats up slowest?

a)

Aluminium

b)

Concrete

c)

Diamond

d)

Glass

e)

Water

79.
How does heat flow?
a)
Always from cold to warm
b)
Always from warm to cold
c)
Both warm to cold & cold to warm
d)
It depends on the temperature
80.
What is the transfer of heat by movement of liquids or gases?
a)
Radiation
b)
Convection
c)
Conduction
d)
Heat
81.
What is the measurement of the average kinetic energy of a substance?
a)
Kinetic energy
b)
Temperature
c)
Thermal energy
d)
Potential energy
82.
What is a substance that does NOT conduct heat well?
a)
Conductor
b)
Insulator
c)
Convector
d)
Radiator
83.
What is a substance that DOES conduct heat well?
a)
Conductor
b)
Insulator
c)
Convector
d)
Radiator
84.
What is the energy of the movement of particles in a substance?
a)
Potential energy
b)
Kinetic energy
c)
Thermal energy
d)
Temperature
85.
Heat transfers from an area of ________temperature to an area of ______ temperature.
a)
high to low
b)
low to high
c)
high to high
86.
If an object has particles that are moving very quickly, the object 's temperature is probably _____.
a)
cold
b)
slow
c)
big
d)
hot
87.
What is the definition of CONDUCTION?
a)
When heat is transferred from objects like rays of light or electromagnetically.
b)
a  hot liquid or air that  expands, becomes less dense, and rises or becomes more dense, and sinks.
c)
When heat transfers from objects that are touching.
d)
When heat transfers through the heater or AC in your house.
88.
Warm air rises and the cool air sinks demonstrates this type of heat transfer. 
a)
conduction
b)
convection
c)
radiation
d)
Insolation 
89.
Ironing a shirt is an example of...
a)
condensation
b)
conduction
c)
convection
d)
radiation
90.
A group of friends gather around a fire to stay warm.
a)
conduction
b)
convection
c)
radiation
91.
The way the heat is moving from the hot coffee is called...
a)
convection
b)
radiation
c)
insulation
d)
conduction
92.
Hot coffee is stirred with a spoon; the spoon gets hot due to
a)
conduction
b)
convection
c)
radiation
93.
In a swimming pool, water near the surface is slightly warmer. The warm water rises because of
a)
conduction
b)
convection
c)
radiation
94.
The sun shines down on this family as the play on the beach.
a)
conduction
b)
convection
c)
radiation
95.
How many kinds of heat transfer are there?
a)
1
b)
2
c)
3
d)
4 or more
96.
In heat transfer, heat always flows from the _______________ substance to the _______________ substance.
a)
Hotter to colder
b)
Colder to hotter
c)
Hotter to hotter
d)
Colder to colder
97.
What is the definition of CONVECTION
a)
When heat transfers through waves.
b)
When heat transfers from objects that are touching.
c)
a  hot liquid or air that  expands, becomes less dense, and rises or becomes more dense, and sinks.
d)
Heat traveling from the sun
98.
What kind of heat transfer happens when the sun is heating your body?
a)
Conduction
b)
Radiation
c)
Convection
d)
Density
99.
Near the ceiling of a room the air is warmer.  The warm air rises because of
a)
conduction
b)
convection
c)
radiation
100.
You get sunburned due to __________ from the sun.
a)
conduction
b)
convection
c)
radiation
101.
what is the meaning of convection?
a)
cold rises heat falls
b)
heat
c)
cold
d)
hot rises cold falls
102.
cold falls
a)
false
b)
true
103.
The transfer of heat by currents through liquids of gases is called
a)
Perspiration
b)
Radiation
c)
Conduction
d)
Convection
104.

A snowball in your hand is what heat transfer?

a)

Convection

b)

Conduction

c)

Law of Conservation of Energy

d)

Radiation

105.

In which direction does heat transfer?

a)

Freezing to HOT

b)

Hot to Warm

c)

Hot to Cold

d)

Cold to Hot

106.
Radiation= 
a)
physical contact
b)
warm air rising
c)
heat moving through empty space
d)
say what?
107.

This is when heat is absorbed, it is an

a)

Exothermic reaction

b)

endothermic reaction

c)

both

d)

none

108.

When heat is released it is an

a)

exothermic reaction

b)

endothermic reaction

c)

both

d)

none

109.

The temperature increases outside of this reaction

a)

exothermic

b)

endothermic

c)

both

d)

none

110.

The temperature decreases outside of this reaction

a)

exothermic

b)

endothermic

c)

both

d)

none

111.

Evidence of a chemical reaction is when 2 substances react, they

a)

stay the same

b)

form a new substance

c)

both

d)

none

112.

Your hands get cold outside from not wearing gloves

a)

exothermic

b)

endothermic

c)

both

d)

none

113.

Fire is an example of

a)

exothermic reaction

b)

endothermic reaction

c)

none

d)

both

114.

Fireworks are an example of

a)

exothermic

b)

endothermic

c)

both

d)

none

115.

A melting ice cube is an example of

a)

exothermic

b)

endothermic

c)

none

d)

both

116.

An ice pack in an example of

a)

exothermic

b)

endothermic

c)

both

d)

none

117.

photosynthesis is an example of

a)

Exothermic reaction

b)

Endothermic reaction

c)

both

d)

none

118.

Frying an egg is an example of

a)

exothermic reaction

b)

endothermic reaction

c)

both

d)

none

119.

The phase of matter with a definite volume but no definite shape is a

a)
solid
b)
liquid
c)
gas
120.

The phase of matter with a definite shape and definite volume is a

a)

solid

b)

liquid

c)

gas

121.

Gases have ...

a)

a definite shape and definite volume

b)

no definite shape and no definite volume

c)

a definite shape and no definite volume

122.

The phase of matter in which the atoms are moving freely and are very far apart

a)

solid

b)

liquid

c)

gas

123.
What best describes the motion of atoms in a solid? 
a)
vibrating slowly in place
b)
sliding past each other
c)
moving rapidly in all directions
124.

What best describes the motion of molecules in a liquid? 

a)
vibrating slowly in place
b)

flowing past each other

c)

moving freely in all directions

125.
Adding heat energy causes the atoms to...
a)
move slower
b)
move faster
c)
get bigger
d)
get smaller
126.

Removing energy (cooling) causes the atoms to

a)

spread apart

b)

move closer together

c)

get larger

d)

get smaller

127.
Which phase of matter is represented by the atoms in this diagram? 
a)
solid
b)
liquid
c)
gas
128.
Which phase of matter is represented by the atoms in this diagram? 
a)
solid
b)
liquid
c)
gas
129.

The water droplets on the outside of this glass of water is showing the following phase change

a)
melting
b)
evaporation
c)
freezing 
d)
condensation
130.
The water leaving the ocean in the water cycle is representing this phase change
a)
melting
b)
evaporation
c)
freezing 
d)
condensation
131.

What phase change is represented by the dry ice in this picture- which changes from a solid to a gas?

a)

evaporation

b)

condensation

c)

sublimation

d)

melting

132.
What two phase changes require heat energy to be absorbed?  
a)
melting and freezing
b)
melting and boiling
c)
freezing and boiling
d)
freezing and condensation
133.

What phase change occurs due to losing heat energy?

a)
melting
b)

freezing

c)
evaporation
d)
boiling
134.

Three containers with the same amount of the same material are shown below. Which container has the substance with the highest amount of energy?

a)

The container on the left

b)

The middle container

c)

The container on the right

d)

All have an equal amount of energy

135.

What state of matter?

a)

Solid

b)

Liquid

c)

Gas

136.

What is the phase change of a solid to a liquid?

a)

freezing

b)

melting

c)

boiling

d)

condensation

137.

Change from Liquid to Solid is called ...

a)

fusion

b)

Freezing

c)

sublimation

d)

evaporation

138.

Three containers with the same amount of the same material are shown below. Which container has the substance with the lowest amount of energy?

a)

The container on the left

b)

The middle container

c)

The container on the right

d)

All have an equal amount of energy

139.
For the formula:
 Q= m c ∆T
The  units for specific heat are:
a)
g /J C
b)
°C/g J
c)
kJ/g
d)
J/g°C
140.
What would be the effect on the particles if more heat is supplied to the system?
a)
They would slow down
b)
They would stop moving
c)
They would speed up
d)
There would be no effect
141.
Thermal energy ALWAYS moves from _____ to _____.
a)
solid to liquid
b)
ice to water
c)
hot to cold
d)
solid to gas
142.
LT3: If two objects have different temperatures, heat will flow from the warmer object to the cooler one UNTIL ____________
a)
one reaches a temperature of zero
b)
they both have an equal temperature
c)
one runs out of energy
143.
The movement of thermal energy from an object at a higher temperature to an object at a lower temperature is called ____________.
a)
thermal
b)
expansion
c)
temperature
d)
heat
144.
The total energy of all the particles in a substance is called: 
a)
temperature
b)
thermal energy
c)
degrees
d)
mass
145.
If the specific heat of water is 4,186 J/kg∙°C, how much heat is required to increase the temperature of 1.2 kg of water from 23 °C to 39 °C? 
a)
-80,371.2
b)
44,938.6
c)
80,371.2
d)
112,575.9
146.
What is the specific heat of an unknown substance if 20 kg of it at 400 °C reaches an equilibrium temperature of 351 °C when it comes in contact with a piece of aluminum.  The aluminum weighs 55 kg and had an initial temperature of 4 °C?  (Specific heat of aluminum is 903 J/kg °C)  Use the equation mC(Tf – Ti) + mC(Tf – Ti)= 0
a)
17,233,755
b)
-17,233,755
c)
17,585.46
d)
723
147.
For a skillet, used for cooking, do you want a high or low specific heat
a)
High, so that it will need more energy to heat up
b)
Low, so that it will change temperature quickly
148.
Steam at temperature of 100°C is piped to 3 kg of water at the temperature of 5°C until the water reaches the boiling point. The mass of the steam required is
[Specific latent heat of vaporization of water = 2.26 × 106 J kg−1, specific heat capacity of water = 4.2 × 103 J kg−1°C−1]
a)
0.26 kg
b)
0.53 kg
c)
0.94 kg
d)
1.89 kg
149.
How many Joules of energy are required to change 10 gram of ice at -2 οC to water at 20 οC?
a)
440 J
b)
880 J
c)
3,840 J
d)
66,000 J
150.
How many Joules of energy are required to change 10 gram of water from 20 οC to 90 οC?
a)
1400 J
b)
2800 J
c)
210,000 J
d)
1,400,000 J
151.
How many Joules of energy are required to make 100 grams of ice at 0 οC completely melt?
a)
200 J
b)
400 J
c)
30,000 J
d)
2,000,000 J
152.
The symbol for specific heat is .......
a)
c
b)
Q
c)
m
d)
t
153.
Water molecules have the greatest kinetic energy in
________________
a)
Ice at 0 °C.
b)
Water at 373 K.
c)
Water at 98 °C
d)
Steam at 150 °C.
154.
The unit Joules is for ___________
a)
heat energy
b)
temperature
c)
specific heat
155.
Does everything have Specific Heat?
a)
I give up!
b)
no 
c)
yes 
156.
A high specific heat means...
a)
It heats up quickly with energy added
b)
It requires more energy to change temperature
157.
The graph shows the cooling curve of a substance.
The specific latent heat released at stages?
a)
CD and FG
b)
DE and EF
c)
EF and FG
d)
DE and FG
158.
A metal cube at temperature of 10°C immersed in a liquid at temperature of 70°C.
What is the temperature of the metal cube when thermal equilibrium is achieved between the cube and the liquid?
a)
Between 10°C and 70°C
b)
More than 70°C
c)
Less than 10°C
d)
Same as the room temperature

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