WorksheetsThermal Conduction
Total questions: 22
Worksheet time: 17mins
Name
Class
Date
1.
As the mass decreases, what will the change in temperature do for the same energy output?
a)
Decrease
b)
Increase
c)
Stay the same
d)
Not determinable from the information given.
2.
What is thermal conductivity?
a)
The rate at which particles move in a substance
b)
The ability of a substance to have a large thermal energy
c)
A factor that determines the amount of thermal energy of a substance
d)
The rate at which a substance transfers heat
3.
If two objects have different temperatures, heat will flow from the cooler object to the warmer one.
a)
True
b)
False
4.
Conduction is the transfer of thermal energy ___________.
a)
in the form of electromagnetic waves such as infrared radiation without the aid of a medium
b)
through a medium without any flow of the medium
c)
by means of convection currents in a fluid (liquid or gas), due to a difference in density
d)
None of the above
5.
List the correct order of conduction.
1. They collide more vigorously with neighbouring particles
2. Particles at the heated end gain kinetic energy and vibrate vigorously.
3. Particles at cooler end vibrate vigorously.
1. They collide more vigorously with neighbouring particles
2. Particles at the heated end gain kinetic energy and vibrate vigorously.
3. Particles at cooler end vibrate vigorously.
a)
1, 2, 3
b)
3, 2, 1
c)
2, 1, 3
d)
1, 3, 2
6.
Which material is the best conductor of heat?
a)
Wood
b)
Plastic
c)
Glass
d)
Steel
7.
Why do metals conduct thermal energy more quickly?
a)
Particles vibrate faster
b)
Due to the presence of bound electrons
c)
Due to the presence of free electrons
d)
Metals are grey
8.
Why are gases poor conductors of electricity?
a)
Particles are close together and collisions are more frequent
b)
Particles are far apart and collisions are less frequent
c)
Particles are close together and collisions are less frequent
d)
Particles are far apart and collisions are more frequent
9.
Which phase is the best conductor of heat?
a)
Solid
b)
Liquid
c)
Gas
10.
Which of the following is an application of conduction?
a)
Thermal energy from the Sun to Earth
b)
Pots having metals bodies and plastic handles
c)
Vacuum flasks having silver bodies
d)
Air conditioners cooling down a room
11.
Which type of heat transfer is shown?
a)
convection
b)
conduction
c)
radiation
d)
stir frying
12.
What type of heat transfer is shown here?
a)
convection
b)
conduction
c)
radiation
d)
sun shining
13.
Conduction is heat transfer by -
a)
Touch
b)
Circles
c)
Waves
14.
The heat from a hot burner to a pot is transferred by ______.
a)
convection
b)
insulation
c)
radiation
d)
conduction
15.
Which of the following are kinds of heat transfer.
a)
Conduction
b)
Convection
c)
Radiation
d)
All of the above
16.
This is an example of a(n)
a)
Conductor of heat
b)
Insulator of heat
c)
Insulator of electrical
d)
None of the above
17.
What happens to particles as they heat up?
a)
They slow down
b)
Nothing
c)
They don't move
d)
They speed up
18.
What type of material makes the best insulators?
a)
Aluminum
b)
Copper
c)
Styrofoam
d)
Metal
19.
Conduction can only occur between two objects when –
a)
one object is less dense than the other.
b)
both objects are in physical contact with each other.
c)
one of the objects is made of a metal.
d)
both objects are exactly the same temperature.
20.
Which of the following describes a way in which heat energy will be transferred by conduction?
a)
Sample 1 to Sample 2
b)
Sample 3 to Sample 2
c)
Sample 3 to Sample 1
d)
Sample 2 to Sample 3
21.
Where would energy transfer by conduction move downward, from a higher block to a lower block?
a)
Sample 2 to Sample 4
b)
Sample 1 to Sample 2
c)
Sample 3 to Sample 4
d)
Sample 1 to Sample 3
22.
Which was the most effective at preventing heat transfer from the water to the environment?
a)
Container P
b)
Container Q
c)
Container R
d)
Container S
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