CI Investigation 6 Question Preview (ID: 46369)


Insulation. TEACHERS: click here for quick copy question ID numbers.

A material that easily transfers heat is called
a) convection current
b) conductor
c) temperature
d) insulator

A material that does not conduct heat well is called a(n)
a) insulator
b) convection current
c) temperature
d) conductor

Which is not an example of an insulator?
a) cardboard
b) cotton
c) aluminum foil
d) rug

A vacuum in a thermos
a) reduces energy transfer
b) cleans the floor
c) increases energy transfer
d) keeps things at medium temperatures

Conduction cannot occur in a space where
a) there are no particles.
b) there are some particles.
c) there are lots of particles.
d) there are only oxygen particles.

A thermos keeps things warm by using
a) a metal liner
b) an insulator
c) a conductor
d) a vacuum

Particles with higher energy can
a) transfer their energy to even faster particles.
b) hold onto their energy for a long time.
c) transfer their enegy to slower particles
d) destroy some of their energy.

If one thermos keeps a substance hotter for longer than another thermos, that means
a) the vacuum inside is better than another thermos.
b) the insulating metal is much better.
c) they both need to undergo improvements.
d) the better thermos is a conductor.

It is possible to make a true vacuum, with no particles at all.
a) True
b) False
c)
d)

A thermos reduces which kinds of insulation?
a) infrared radiation and conduction
b) conduction and convection
c) infrared radiation and convection
d) conduction, convection and infrared radiation

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