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Heat Transfer Review
Test Description: Review of heat transfer
Instructions: Answer all questions to get your test result.
1) Conduction is the transfer of heat energy by -
A
movement through a vacuum
B
density differences
C
electromagnetic waves
D
molecular contact
2) The collision of molecules within a substance results in the transfer of energy by -
A
convection
B
radiation
C
conduction
D
insolation
3) What method of energy transfer requires no medium for transfer?
A
convection
B
conduction
C
radiation
D
advection
4) Which action would help an air-conditioner use less energy on a hot, sunny summer day?
A
adding insulation in the walls and ceiling
B
opening draperies and blinds
C
replacing light-colored roofing materials with dark-colored ones
D
turning on lights and heat-producing appliances
5) In general, good absorbers of electromagnetic radiation are also good
A
convectors
B
radiators
C
reflectors
D
refractors
6) An object that is a good absorber of electromagnetic energy is also a good --
A
radiator of electromagnetic energy
B
convector of electromagnetic energy
C
reflector of electromagnetic energy
D
refractor of electromagnetic energy
7) The primary method of energy transfer by which the Earth loses energy to outer space is --
A
convection
B
radiation
C
transpiration
D
conduction
8) By which process do light rays pass through window glass?
A
compression
B
conduction
C
convection
D
radiation
9) Which statement is the best example of heat energy transfer by conduction?
A
heat energy is transferred from the Earth’s surface to the upper atmosphere.
B
Heat energy is transferred from the surface soil to the rocks below
C
Heat energy is transferred from the Sun to the Earth.
D
Heat energy is transferred from the bottom to the top of a lake
10) During which process of energy exchange does cold air displace warmer air?
A
absorption
B
radiation
C
conduction
D
convection
11) Energy is transferred from the Sun to Earth mainly by --
A
density currents
B
molecular collisions
C
red suits
D
electromagnetic waves
*select an answer for all questions
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