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Thermodynamics

Total questions: 46

Worksheet time: 2hrs 37mins

Name
Class
Date
1.

Specific Heat is..

a)

the temperature initial minus temperature final

b)

the amount of heat/energy required to raise 1 gram of a substance by 1°C (or K) aka "C"

c)

the temperature final minus temperature initial

d)

the item in a system with given weight in grams

2.

READ CAREFULLY! YOU HAVE TIME!

A substance with a low specific heat requires less energy to heat up and a substance with high specific heat require more energy to heat up and heats up slower

a)

TRUE

b)

FALSE

3.

When you place the metal in boiling water, heat flows from the _________ to the _______.

a)

metal to the boiling water

b)

bottom of the metal to the top half of the metal

c)

bottom of the water to the top of the water

d)

boiling water to the metal

4.
The first law of thermodynamics states that the change in the internal energy of a system is equal to the difference in energy transferred to or from the system as heat and
a)
mass
b)
work done
c)
force
d)
pressure
5.
As a system becomes more disordered, entropy
a)
remains the same
b)
increases
c)
decreases
d)
cannot be determined
6.
The first law of thermodynamics is a restatement of the
a)
Zeroth law of thermodynamics
b)
law of heat addition
c)
principle of entropy
d)
conservation of energy
7.
The transfer of thermal energy between objects of different temperatures is called...
a)
temperature
b)
heat
c)
internal energy
d)
none of these
8.
It is possible to reach absolute zero
a)
true
b)
false
9.
Heat transfer by conduction occurs when...
a)
particles bump into each other
b)
large numbers of atoms move from place to place
c)
atoms give off heat in the form of electromagnetic waves
d)
electromagnetic waves travel from place to place through a vacuum
10.
Heat transfer by convection occurs when...
a)
electrons bump into other electrons
b)
large numbers of atoms move from place to place
c)
atoms give off heat in the form of electromagnetic waves
d)
electromagnetic waves travel from place to place through a vacuum
11.
Heat travels from the sun to the earth by the process of...
a)
conduction
b)
convection
c)
radiation
d)
insulation
12.
A substance with a high specific heat:
a)
Is always extremely hot.
b)
Requires a lot of energy to become hot.
c)
Is not heavy.
d)
Does not requires a lot of energy to become hot.
13.
Thermal energy always moves:
a)
From a high temperature object to a lower temperature object.
b)
From a lower temperature object to a higher temperature object.
c)
From an object with lower kinetic energy to an object with higher kinetic energy.
d)
From an object of higher mass to an object of lower mass.
14.
The second  law of thermodynamics states that entropy of a system  tends to ______________. 
a)
increase
b)
decrease
c)
stay constant
d)
fluctuate wildly
15.
The temperature of a glass of cold water will eventually...
a)
Match the temperature of the surrounding environment.
b)
Always be colder than the surrounding environment.
c)
Become warmer than the surrounding environment.
d)
Never change temperature.
16.
The first law of thermodynamics states that energy is
a)
created
b)
destroyed
c)
conserved
d)
created and destroyed
17.

Block A, at 100°C, and block B, at 50°C, are brought together in a well-insulated container. The internal energy of block A will...

a)

increase, and the internal energy of block B will decrease.

b)

decrease, and the internal energy of block B will decrease.

c)

increase, and the internal energy of block B will increase

d)

decrease, and the internal energy of block B will increase.

18.

A heater at the bottom of a swimming pool warms the water near it. The warmer water rises to the top of the pool. The cooler water that sinks to the bottom is then warmed by the heater. A current results from the rising and sinking water, and eventually the entire pool is heated. The transfer of energy by currents in the manner described is

a)

Conduction

b)

Convection

c)

Radiation

19.

You pick up an ice cube in your hand. Soon it begins to melt and your hand feels cold. In terms of energy, what happened?

a)

The cold left the ice cube and conducted into your hand.

b)

The heat radiating from your hand melted the ice cube.

c)

Beginning where the ice cube contacted your skin, convection currents formed in the ice cube.

d)

The heat from your hand conducted into the ice cube.

20.

What type of heat transfer is happening in the following scenario....FEELING THE WARMTH OF THE SUN ON

YOUR FACE.

a)

Conduction

b)

Convection

c)

Radiation

21.

What type of heat transfer is happening in the following scenario....HEAT GIVEN OFF FROM A LIGHT BULB.

a)

Conduction

b)

Convection

c)

Radiation

22.

What type of heat transfer is happening in the following scenario....TOUCHING A HOT STOVE.

a)

Conduction

b)

Convection

c)

Radiation

23.

What type of heat transfer is happening in the following scenario....A HOT AIR BALLOON RISING INTO THE SKY.

a)

Conduction

b)

Convection

c)

Radiation

24.

What type of heat transfer is happening in the following scenario....STEAM RISING FROM A CUP OF COFFEE.

a)

Conduction

b)

Convection

c)

Radiation

25.

Heat transfer occurs

a)

both from warm objects to colder ones and from cold objects to warmer ones.

b)

only from warm objects to colder ones.

c)

only from cold objects to warmer ones.

d)

in many directions.

26.

Heat can be defined as the:

a)

average kinetic energy of the molecules of an object.

b)

average temperature of a substance.

c)

flow of thermal energy from one object to another object.

d)

amount of thermal energy an object contains.

27.
Heat transfer by conduction occurs when...
a)
particles bump into each other
b)
large numbers of atoms move from place to place
c)
atoms give off heat in the form of electromagnetic waves
d)
electromagnetic waves travel from place to place through a vacuum
28.
Heat transfer by convection occurs when...
a)
electrons bump into other electrons
b)
large numbers of atoms move from place to place
c)
atoms give off heat in the form of electromagnetic waves
d)
electromagnetic waves travel from place to place through a vacuum
29.
The heat from a lamp allows a lizard to remain warm. This is an example of which type of heat transfer?
a)
radiation
b)
conduction
c)
convection
d)
insulation
30.
Which describes what can happen as a result of radiation?
a)
 A piece of wood burns in a fire.
b)
A shirt is hot after having been  ironed.
c)
A can of soup is heated in a pot on a stove.
d)
A car’s inside temperature rises  to over 100 degrees on a sunny day.
31.

Which of the following is not a method for heat transfer

a)

Radiation

b)

Insulation

c)

Conduction

d)

Convection

32.
Jordan places a hot spoon into a container of ice cream. How does this help him scoop  out the ice cream? 
a)
The coolness from the ice cream is conducted to the spoon making it easier to scoop out.
b)
The coolness from the ice cream is radiated to the spoon making it easier to scoop out.
c)
The warmth of the spoon is conducted to the ice cream  making it easier to scoop out.
d)
The warmth of the spoon is radiated  to the ice cream making it easier to scoop out.
33.
Which will most likely occur when raw egg is placed on black pavement on a hot, summer day?
a)
The pavement will conduct the heat and cook the egg.
b)
The egg will reflect the heat and make the pavement hotter underneath.
c)
The egg will absorb the heat  and leave the pavement hotter underneath.
d)
The pavement will absorb the heat from the egg, and the egg will stay raw.
34.
John put a heat pack on his cold feet. What will most likely be the result?
a)
The cold from John’s feet will  be radiated into  the heat pack.
b)
The warmth of the heat pack will be radiated  onto John’s feet.
c)
The cold from John’s feet will be conducted  into the heat pack.
d)
The warmth of the heat pack will be conducted  onto John’s feet.
35.
Tom puts a metallic cover over his car’s windshield after parking. How does this control  the sun’s rays  during a sunny day?
a)
It prevents heat energy from leaving the car.
b)
It controls the temperature by providing shade.
c)
It reflects the sun’s rays away from the windshield.
d)
It absorbs heat in the windshield  protector and  cools the car.
36.
How is heat transferred when boiling a pot of water on the stove?
a)
conduction
b)
convection
c)
combustion
d)
radiation
37.
Which is an example of heat being transferred by conduction?
a)
a furnace heating the air in a school
b)
an ice cube melting in a person’s hand
c)
a pot of water on a stove boiling
d)
the sun heating water in a swimming pool
38.

Hot coffee is stirred with a spoon, the spoon gets hot due to ...

a)

Conduction

b)

Radiation

c)

Convection

39.

A chair is placed several feet from a fire in a fireplace. The fire has a glass screen. The side of the chair facing the fireplace gets warm because of ...

a)

Conduction

b)

Radiation

c)

Convection

40.

A certian type of decorative lamp contains colored liquids. These liquids form globs that break off and rise to the top of the liquid. The globs rise due to ...

a)

Conduction

b)

Radiation

c)

Convection

41.

Near the ceiling of a room the air is warmer. The warm air rises because of ...

a)

Conduction

b)

Radiation

c)

Convection

42.

A heater is placed under one corner of a waterbed mattress. Warm air moves throughout the mattress because of ...

a)

Conduction

b)

Radiation

c)

Convection

43.

A certain type of stainless steel cookware has a layer of copper applied to the bottom to help it heat evenly. The copper transfers heat to the pan by ...

a)

Conduction

b)

Radiation

c)

Convection

44.

One end of a copper rod is placed in a flame of a Bunsen burner. Small pieces of wax placed along the rod melt a progressively larger distance from the flame. Heat is transferred through the rod by ...

a)

Conduction

b)

Radiation

c)

Convection

45.

A house burns down. On the house across the street, all the vinyl siding is twisted and warped by the heat. The heat was transferred across the street by ...

a)

Conduction

b)

Radiation

c)

Convection

46.

When you pull your Totino's Pizza rolls out of the oven and the pan is so hot it burns your hand because you forgot your protective mit. The energy move to your hand from the pan to your hand through ...

a)

Conduction

b)

Radiation

c)

Convection

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