Chapter 15 Temperature, Heat and Expansion
Heat energy is ensued in units of
Both calories and joules
As a piece of metal with a hole in it cools, the diameter of the hole
decreases
In order the melt ice add....
energy
When you touch a cold piece of ice with your finger, energy flows
from your finger to the ice
In most cases, which expands more for comparable changes in temperature?
gases
The moderate temperatures of islands throughout the world has much to do with water's
high specific heat capacity
Compared to a giant iceberg, a hot cup of coffee has
higher temperature, but less internal energy
Aluminum has a higher specific heat capacity than iron. This means that for equal masses of aluminum and iron, the metal that heats more quickly when the same amount of heat is applied is
iron
Temperature is most closely related to
kinetic energy
Celsius converted to Kelvin would equal?
300K
Does water expand or contract when it is cooled below room temp to 4C?
Contract
If the temperature of a sample of water is 0 degrees Celsius is slightly increased, the volume if water
Decreases
What occurs to the density of water when it is cooled below 4C to 0C?
Decreases
It is important that the two metals that make up a bimetallic strip have
Different rated of expansion
Does water expand or contract when water is cooled below 4C to 0C?
Expands
What occurs to the density of water when it is cooled below room temp to 4C?
Increases
A temperature difference of 20 Celsius degrees is also equal to a temperature difference of 20 on the
Kelvin Scale
A substance that cools down faster than others has a
Low specific heat capacity
The quantity of heat that a substance can transfer relates to its
all of the above