WorksheetsThermodynamics
Total questions: 26
Worksheet time: 20mins
Name
Class
Date
1.
The transfer of thermal energy between objects of different temperatures is called...
a)
temperature
b)
heat
c)
internal energy
d)
none of these
2.
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
3.
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
4.
Heat travels from the sun to the earth by the process of...
a)
conduction
b)
convection
c)
radiation
d)
insulation
5.
It is possible to reach absolute zero
a)
true
b)
false
6.
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.
7.
What is the correct formula to convert Celsius to Kelvin?
a)
K=C-273
b)
K=C+273
c)
K=C-100
d)
K=C+100
8.
The second law of thermodynamics states that entropy of a system tends to ______________.
a)
increase
b)
decrease
c)
stay constant
d)
fluctuate wildly
9.
The measure of average kinetic energy of all the particles within an object is called ____________.
a)
temperature
b)
conduction
c)
radiation
d)
heat
10.
A bimetallic strip (strip made of 2 different types of metal) was heated as shown.
What does this experiment tell us about effects of heating different types of metal?
What does this experiment tell us about effects of heating different types of metal?
a)
Metals strip A and B expands when heated.
b)
Metal A contracts more than metal B.
c)
Metal A expands more than metal B.
d)
Metal B expands more than metal A.
11.
A block of ice is placed on a hot sidewalk. The ice melts because
a)
the energy from the ice flows to the sidewalk.
b)
the energy from the sidewalk flows to the ice.
c)
convection currents flow between the ice and the sidewalk
d)
radiation flows between the ice and the sidewalk
12.
The baby chickens are kept warm from the heat lamps demonstrates this type of heat transfer.
a)
conduction
b)
convection
c)
radiation
13.
Warm air rises and the cool air sinks demonstrates this type of heat transfer.
a)
conduction
b)
convection
c)
radiation
d)
Insolation
14.
True/False: when two substances reach the same temperature they are in thermal equilibrium.
a)
True
b)
False
15.
Heat is measured in...
a)
joules
b)
calories
c)
kilocalories
d)
any of these
16.
When temperature increases, what happens to the volume?
a)
It goes down.
b)
It stays the same.
c)
It goes up.
d)
Not enough information to tell.
17.
What is specific heat?
a)
amount of energy that raise the temperature of 1 kg by 1°C
b)
amount of energy that raise the temperature of 1°C by 1 kg
c)
amount of energy needed to raise the temperature
d)
amount of energy needed to raise the mass
18.
The _____ Law of Thermodynamics says that heat always flows from an object with a higher temperature to an object of lower temperature naturally
a)
Zeroth
b)
First
c)
Second
d)
Third
19.
Which law of thermodynamics states that absolute zero cannot be reached?
a)
1st
b)
2nd
c)
3rd
d)
Zeroth
20.
What causes water to freeze solid when placed in a freezer? The freezer–
a)
adds heat to the water
b)
puts electricity in the water
c)
takes heat away from the water
d)
does not let light shine on the water
21.
The 1st law of thermodynamics is based on the following principles
a)
conservation of mass
b)
conservation of energy
c)
action and reaction
d)
Entropy - Temperature relationship
22.
When an object is cooled, its molecules slow down and move closer together, causing the volume to _____.
a)
decrease.
b)
increase.
c)
stays the same.
23.
How can energy be transferred from a cool object to a warm object?
a)
Work must be done
b)
Increase thermal energy
c)
Use convection
d)
Q=mTC
24.
“When thermal energy is converted into work, some thermal energy is always transferred to the surroundings.”
a)
True
b)
False
25.
How does a refrigerator work?
a)
Moves heat from inside the fridge to the room
b)
Blows cold air into the fridge
c)
Uses convection cells
d)
It generates cold air
26.
A steady force pushes in the piston
of a well-insulated cylinder. In this
process, the temperature of the gas
of a well-insulated cylinder. In this
process, the temperature of the gas
a)
Increases
b)
Stays the same
c)
Decreases
d)
Not enough info
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