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```Heat & Thermodynamics
Test Prep Game
1) What is the energy transferred to or from a
unit of mass of a substance during a phase
change called?
a) Latent Heat
b) Specific Heat Capacity
c) Internal Energy
d) Thermal Energy
1) What is the energy transferred to or from a
unit of mass of a substance during a phase
change called?
a) Latent Heat
b) Specific Heat Capacity
c) Internal Energy
d) Thermal Energy
2)
A 0.075 kg object at 93 C is placed in 0.150 kg
water with an initial temperature of 25 C. The
final temperature of the object and water is 29
C. What is the specific heat capacity of the
object (Cpw = 4186 J/kg C)?
a) 260 J/kg C
b) 520 J/kg C
c) 129 J/kg C
d) 1040 J/kg C
2)
A 0.075 kg object at 93 C is placed in 0.150 kg
water with an initial temperature of 25 C. The
final temperature of the object and water is 29
C. What is the specific heat capacity of the
object (Cpw = 4186 J/kg C)?
a) 260 J/kg C
b) 520 J/kg C
c) 129 J/kg C
d) 1040 J/kg C
3)
How much work is done by 0.020 m3 of gas if
it’s pressure increases by 2.0 x 105 Pa and the
volume remains constant?
a) -4000 J
b) +4000 J
c) 0 J
d) 1 x 107 J
3)
How much work is done by 0.020 m3 of gas if
it’s pressure increases by 2.0 x 105 Pa and the
volume remains constant?
a) -4000 J
b) +4000 J
c) 0 J
d) 1 x 107 J
4)
A volume of cool air rapidly descends from the
top of a mountain. The temperature increases
as the volume decreases and the pressure
increases. Which thermodynamic process is
taking place?
b) Isovolumetric
c) Isobaric
d) Isothermal
4)
A volume of cool air rapidly descends from the
top of a mountain. The temperature increases
as the volume decreases and the pressure
increases. Which thermodynamic process is
taking place?
b) Isovolumetric
c) Isobaric
d) Isothermal
5)
Gas within a piston is compressed from 1.55 x
10-2 m3 to 9.5 x 10-3 m3. what quantity of work
is done if the compression occurs at a constant
pressure of 3.0 x 105 Pa?
a) 1800 J
b) 3600 J
c) -3600 J
d) -1800 J
5)
Gas within a piston is compressed from 1.55 x
10-2 m3 to 9.5 x 10-3 m3. what quantity of work
is done if the compression occurs at a constant
pressure of 3.0 x 105 Pa?
a) 1800 J
b) 3600 J
c) -3600 J
d) -1800 J
6)
A steam engine takes in 2750 J of energy as
heat, gives up 1550 J of energy to the
surroundings and does 850 J of work. What is
the change in internal energy of the engine?
a) 5150 J
b) 3450 J
c) 2050 J
d) 350 J
6)
A steam engine takes in 2750 J of energy as
heat, gives up 1550 J of energy to the
surroundings and does 850 J of work. What is
the change in internal energy of the engine?
a) 5150 J
b) 3450 J
c) 2050 J
d) 350 J
7) Which of the following best describes a
state of Thermal Equilibrium?
a) Both systems have the same mass.
b) Both systems have the same volume.
c) Both systems have the same temperature.
d) Both systems contain the same amount of
internal energy.
7) Which of the following best describes a
state of Thermal Equilibrium?
a) Both systems have the same mass.
b) Both systems have the same volume.
c) Both systems have the same temperature.
d) Both systems contain the same amount of
internal energy.
8)
Which of the following correctly describes
Thermal Expansion? As the temperature
increases,
a) the volume of the substance increases
b) the volume of the substance decreases
c) the density of the substance increases
d) the density of the substance decreases
8)
Which of the following correctly describes
Thermal Expansion? As the temperature
increases,
a) the volume of the substance increases
b) the volume of the substance decreases
c) the density of the substance increases
d) the density of the substance decreases
9)
What is 235 K when measured in degrees
Celsius?
a) 508 C
b) 203 C
c) -38 C
d) -68 C
9)
What is 235 K when measured in degrees
Celsius?
a) 508 C
b) 203 C
c) -38 C
d) -68 C
10) Which temperature is widely used in science,
and applied to non-scientific uses throughout
most of the world?
a) Rankine
b) Celsius
c) Fahrenheit
d) Kelvin
10) Which temperature is widely used in science,
and applied to non-scientific uses throughout
most of the world?
a) Rankine
b) Celsius
c) Fahrenheit
d) Kelvin
11) Convert 36.7 C to degrees Fahrenheit.
a) 309.7 F
b) 123.7 F
c) 52.4 F
d) 98.1 F
11) Convert 36.7 C to degrees Fahrenheit.
a) 309.7 F
b) 123.7 F
c) 52.4 F
d) 98.1 F
12) What term is defined as the energy transferred
between objects with different temperatures?
a) Internal Energy
b)Work
c) Heat
d)Thermal Equilibrium
12) What term is defined as the energy transferred
between objects with different temperatures?
a) Internal Energy
b)Work
c) Heat
d)Thermal Equilibrium
13) What must be true for energy to be transferred
between two bodies? The two bodies must:
a) have different volumes
b) be at different temperatures
c) have different masses
d) be in thermal equilibrium
13) What must be true for energy to be transferred
between two bodies? The two bodies must:
a) have different volumes
b) be at different temperatures
c) have different masses
d) be in thermal equilibrium
14) If energy is transferred from an object
with a temperature, T1, to an object with
a temperature, T2, what must be true?
a) T1 < T2
b)T1 = T2
c)T1 > T2
14) If energy is transferred from an object
with a temperature, T1, to an object with
a temperature, T2, what must be true?
a) T1 < T2
b)T1 = T2
c)T1 > T2
15) What is the process by which energy is
transferred by the motion of cold and hot
material?
a) Conduction
b) Insulation
c) Convection
15) What is the process by which energy is
transferred by the motion of cold and hot
material?
a) Conduction
b) Insulation
c) Convection
16) Which of the following is NOT a good
thermal insulator?
a) Ceramic
b) Iron
c) Fiberglass
d) Cork
16) Which of the following is NOT a good
thermal insulator?
a) Ceramic
d
b) Iron
c) Fiberglass
d) Cork
17) A 0.45 kg stone is dropped from a cliff.
When the stone strikes the ground, the
internal energy of the stone and ground
increases by 1770 J. If the stone was
initially at rest, how high was the cliff?
a) 206 m
b) 177 m
c) 401 m
d) 802 m
17) A 0.45 kg stone is dropped from a cliff.
When the stone strikes the ground, the
internal energy of the stone and ground
increases by 1770 J. If the stone was
initially at rest, how high was the cliff?
a) 206 m
b) 177 m
d
c) 401
m
d) 802 m
18) What is the quantity of energy needed to
raise the temperature of a unit mass of a
substance by 1 C called?
a) Latent Heat
b) Specific Heat Capacity
c) Internal Energy
d) Thermal Energy
18) What is the quantity of energy needed to
raise the temperature of a unit mass of a
substance by 1 C called?
a) Latent Heat
d
b) Specific Heat
Capacity
c) Internal Energy
d) Thermal Energy
19) Which property of a substance is NOT
needed to determine the amount of
energy transferred as heat to or from a
substance?
a) Temperature
b) Specific Heat Capacity
c) Volume
d) Mass
19) Which property of a substance is NOT
needed to determine the amount of
energy transferred as heat to or from a
substance?
a) Temperature
b) Specific Heat Capacity
d
c) Volume
d) Mass
20) The entropy of a system can increase,
decrease or remain constant, but the total
entropy of the universe is always _______.
a) Decreasing
b) Increasing
c) Negative
d) Zero
20) The entropy of a system can increase,
decrease or remain constant, but the total
entropy of the universe is always _______.
a) Decreasing
d
b) Increasing
c) Negative
d) Zero
21) A 0.25 kg metal bolt gives up 3.6 x 103 J of
energy as heat to the surrounding water.
The specific heat capacity of the bolt is 360
J/kg C. What is the change in the bolt’s
temperature?
a) 0.40 C
b) 2.5 C
c) 4.0 C
d) 40.0 C
21) A 0.25 kg metal bolt gives up 3.6 x 103 J of
energy as heat to the surrounding water.
The specific heat capacity of the bolt is 360
J/kg C. What is the change in the bolt’s
temperature?
a) 0.40 C
b) 2.5 C
c) 4.0 C
d
d) 40.0
C
22) An engine takes in 7.6 x 105 J of energy as
heat and gives up 5.7 x 105 J of heat to the
surroundings. What is the efficiency of
the engine?
a) 33%
b) 25%
c) 50%
d) 46%
22) An engine takes in 7.6 x 105 J of energy as
heat and gives up 5.7 x 105 J of heat to the
surroundings. What is the efficiency of
the engine?
a) 33%
d
b) 25%
c) 50%
d) 46%
23) What are the units for Specific Heat?
a) J/kgF
b) Jm/kgC
c) J/kgC
d) N/kgsecC
23) What are the units for Specific Heat?
a) J/kgF
b) Jm/kgC
d
c) J/kgC
d) N/kgsecC
24) What is the First Law of Thermal
Dynamics?
a) U = Q + W
b) U = Q – W
c) U = Q x W
d) U = Q/W
24) What is the First Law of Thermal
Dynamics?
a) U = Q + W
b) U =d Q – W
c) U = Q x W
d) U = Q/W
25) A wok is used to heat 100.0 g of olive oil
from 20.0 C to 190 C. The specific heat
of the oil is 2000 J/kg C. How much head
a) 3,400 J
b) 17,000 J
c) 68,000 J
d) 34,000 J
25) A wok is used to heat 100.0 g of olive oil
from 20.0 C to 190 C. The specific heat
of the oil is 2000 J/kg C. How much head
a) 3,400 J
b) 17,000 J
c) 68,000 J
d
d) 34,000
J
26) An engine uses 5 x 106 J of heat. If the
engine is 40% efficient, how much work can
it do?
a) 2 x 106 J
b) 1.25 x 107 J
c) 3 x 106 J
d) 8.3 x 106 J
26) An engine uses 5 x 106 J of heat. If the
engine is 40% efficient, how much work can
it do?
a) 2 xd 106 J
b) 1.25 x 107 J
c) 3 x 106 J
d) 8.3 x 106 J
27) The form of heat transfer that takes place
in a house heated by forced air is
primarily:
b) Work
c) Conduction
d) Convection
27) The form of heat transfer that takes place
in a house heated by forced air is
primarily:
b) Work
c) Conduction
d
d) Convection
28) Entropy states that natural processes tend
to move towards greater:
a) Order
b) Disorder
c) Total Energy
d) Thermal Energy
28) Entropy states that natural processes tend
to move towards greater:
a) Order
d
b) Disorder
c) Total Energy
d) Thermal Energy
29) ________________ is a measure of the
average kinetic energy of the particles in a
substance.
a)Temperature
b) Internal Energy
c) Thermal Equilibrium
d) Latent Heat
29) ________________ is a measure of the
average kinetic energy of the particles in a
substance.
d
a)Temperature
b) Internal Energy
c) Thermal Equilibrium
d) Latent Heat
30) Work done on or by a gas is dependent
upon __________ and ____________
change.
a)Heat, Volume
b) Volume, Heat
c) Pressure, Volume
d) Internal Energy, Pressure
30) Work done on or by a gas is dependent
upon __________ and ____________
change.
a)Heat, Volume
b) Volume, Heat
d Volume
c) Pressure,
d) Internal Energy, Pressure
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