Physical Science 1 Ch 5 Homework
good emitter of radiation
A good absorber of radiation is a
poor insulator
A good heat conductor is a
convection, conduction, radiation
A substance can absorb heat energy by the process of
low specific heat capacity
A substance that heats up relatively quickly has a
decreases
As a piece of metal with a hole in it cools, the diameter of the hole
increases
As a system becomes more disordered, entropy
black pot
Cold water will warm to room temperature faster in a
water expands when freezing
During a very cold winter, water pipes sometimes burst. The reason for this is
fluids
Energy transfer by convection is primarily restricted to
higher tempterature
Food in a pressure cooker is cooked faster because of the
is made of open-structured, hexagonal crystals.
Ice has a lower density than water because ice
surface of bodies of water
Ice tends to form at the
more likely to freeze
If the specific heat capacity of water were lower than it is, ponds in the cold of winter would be
increase
If you run a refrigerator in a closed room with the refrigerator door open, the room temperature will
boil the eggs for a longer time
If you want to cook eggs by boiling them while in the mountains, then compared to sea level cooking, you should
lower temperature than sea level
In the mountains, water boils at
force divided by area
Pressure is defined as
average molecular kinetic energy in a substance
Temperature is related mostly to the ________.
low specific heat capacity
The fact that desert sand is very hot in the day and very cold at night is evidence that sand has a
the energy per molecule is high, but the total energy transferred is small.
The reason that the white-hot sparks that strike your skin from a 4th-of-July-type sparkler don't harm you is because
solid to gas
The term sublimation refers to which of the following phase changes?
preventing the evaporation from our moist bodies.
We feel uncomfortably warm on a muggy day because water molecules are
releases energy
When a gas is changed to a liquid phase, the gas
absorbs energy
When a solid is changed to a liquid phase, the solid
larger
When an iron ring is heated, the hole becomes
less than at sea level
When bringing water to a boil in the mountains, the time needed to reach the boiling point is
stays the same
When heat is added to boiling water, the water temperature
release energy
When liquids change to a solid phase, they
contracts***
When water at 4°C is heated slightly it expands. When water at 4°C is cooled slightly, it
from your finger to the ice
When you touch a cold piece of ice with your finger, energy flows
liquid
Which of the following has a definite volume but no definite shape?
convection
Which of the following methods of heat transfer generally involves mass movement?
iron
Which of the following normally warms up faster when heat is applied?
Celsius
Which temperature scale labels the freezing point of water at 0 degrees?