Unit 3B- Temperature and Heat
high specific heat capacity
The moderate temperatures of islands throughout the world has much to do with water's
kinetic energy
Temperature is most closely related to molecular
a wide variety of speeds
The air in your room is composed of molecules that have
4.19 joules
The amount of heat needed to raise the temperature of 1 gram of water by 1°C is
thermal equilibrium
The fact that a thermometer "takes its own temperature" illustrates
low
The fact that desert sand is very hot in the day and very cold at night is evidence that the specific heat capacity of sand is relatively
Calorie
Which unit represents the most energy?
low specific heat capacity
A substance that cools down faster than others has a
low specific heat capacity
A substance that heats up relatively quickly has a
high specific heat capacity
A substance that heats up relatively slowly has a
Kelvin scale
A temperature difference of 10 Celsius degrees is also equal to a temperature difference of 10 on the
Iron
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
copper
Aluminum has a specific heat capacity more than twice that of copper. Place equal masses of aluminum and copper wire in a flame and the one to undergo the fastest increase in temperature will be
higher temperature, but less internal energy
Compared to a giant iceberg, a hot cup of coffee has
Calories Joules
Heat energy is measured in units of
Temperature to an object with a lower temperature
Heat energy travels from an object with a high
shorter experience
If the specific heat capacity of water were lower than it is, a nice hot bath would be
shorter time
If the specific heat capacity of water were lower than it is, a watermelon in a picnic cooler would cool in a
more likely to freeze
If the specific heat of water were lower than it is, ponds in the cold winter would be
both of these boiling hot tea in a fire-engine pail boiling hot tea in a cup
In which is the temperature greater?
long time in changing temperature
One of water's interesting thermal properties is that when heated it takes a relatively
less than 30 degree celsius
Place a 1-kilogram block of iron at 40°C into 1 kilogram of water at 20°C and the final temperature of the two becomes
at or about 30 degree celsius
Pour a liter of water at 40°C into a liter of water at 20°C and the final temperature of the two becomes
more than 30 degree Celsius
Pour two liters of water at 40°C into one liter of water at 20°C and the final temperature of the two becomes
300K
Room temperature on the Kelvin scale is about
all of the above change in temperature mass specific heat capacity
The quantity of heat that a substance can transfer relates to its
small temperature changes
The specific heat capacity is highest for substances that absorb or release large quantities of heat for correspondingly
little energy to you in spite of their temperature
The white-hot sparks from a 4th-of-July-type sparkler that strike your skin transfer
the tomato sauce feels hotter than the dough
Tomatoes have a higher specific heat capacity than dough. This means that when you bite into a hot pizza
41.9 joules
When 10 grams of hot water cool by 1°C, the amount of heat given off is
from your finger to the ice
When you touch a cold piece of ice with your finger, energy flows
from the potato to your finger
When you touch a hot potato with your finger, energy flows
iron
Which of the following normally warms up fastest when heat is applied?
fahrenheit
Which temperature scale has the smallest sized degrees?
Celsius and Kelvin
Which temperature scales have equal sized degrees?