Question: 1. A typical thermos bottle has a thin vacuum space between the shiny inner flask (which holds a liquid) and the shiny protective outer flask,

1. A typical thermos bottle has a thin vacuum space between the shiny inner flask (which holds a liquid) and the shiny protective outer flask, often stainless steel. The vacuum space is excellent at preventing
(a) Conduction.
(b) Convection.
(c) Radiation.
(d) Conduction and convection.
(e) Conduction, convection, and radiation.
2. Heat is
(a) A fluid called caloric.
(b) A measure of the average kinetic energy of atoms.
(c) The amount of energy transferred between objects as a result of a difference in temperature.
(d) An invisible, odorless, weightless substance.
(e) The total kinetic energy of an ideal gas.

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