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WorksheetsLower Secondary: Conduction
Total questions: 10
Worksheet time: 9mins
Name
Class
Date
1.
Objects at the same temperature is said to be in thermal _.
(a)
2.
If two objects have different temperatures, heat will flow from the cooler object to the warmer one.
a)
True
b)
False
3.
Check the three processes of heat transfer.
a)
Conclusion
b)
Conduction
c)
Condition
d)
Convection
e)
Radiation
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 movement 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.
Which material is the best conductor of heat?
a)
Wood
b)
Plastic
c)
Glass
d)
Steel
6.
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
7.
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
8.
Which state of a substance is the best conductor of heat?
a)
Solid
b)
Liquid
c)
Gas
9.
If you burn your hand on the handle of a hot pot, heat was transferred to your skin by
a)
conduction
b)
convection
c)
radiation
d)
equilibrium
10.
Ironing a shirt is an example of...
a)
condensation
b)
conduction
c)
convection
d)
radiation
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