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CI Investigation 6
Test Description: Insulation
Instructions: Answer all questions to get your test result.
1) A material that easily transfers heat is called
A
convection current
B
temperature
C
insulator
D
conductor
2) A material that does not conduct heat well is called a(n)
A
temperature
B
convection current
C
conductor
D
insulator
3) Which is not an example of an insulator?
A
cotton
B
cardboard
C
rug
D
aluminum foil
4) A vacuum in a thermos
A
increases energy transfer
B
reduces energy transfer
C
cleans the floor
D
keeps things at medium temperatures
5) Conduction cannot occur in a space where
A
there are lots of particles.
B
there are some particles.
C
there are only oxygen particles.
D
there are no particles.
6) A thermos keeps things warm by using
A
a conductor
B
a vacuum
C
a metal liner
D
an insulator
7) Particles with higher energy can
A
destroy some of their energy.
B
hold onto their energy for a long time.
C
transfer their enegy to slower particles
D
transfer their energy to even faster particles.
8) If one thermos keeps a substance hotter for longer than another thermos, that means
A
they both need to undergo improvements.
B
the vacuum inside is better than another thermos.
C
the insulating metal is much better.
D
the better thermos is a conductor.
9) It is possible to make a true vacuum, with no particles at all.
A
False
B
True
10) A thermos reduces which kinds of insulation?
A
infrared radiation and convection
B
conduction, convection and infrared radiation
C
conduction and convection
D
infrared radiation and conduction
*select an answer for all questions
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