Vocabulary
Fill in the Blanks
Write a Sentence or Calculate
100
an energy that moves from hot to cold
heat (thermal energy)
100
_________ moves from cold/hot to cold/hot.
Heat moves from hot to cold.
100
Describe the direction of heat flow (movement) in this situation.
Heat flows from block B to block A.
200
a tool used to measure temperature
thermometer
200
Hot objects have slower/faster __________ than cold objects.
Hot objects have faster molecules than cold objects.
200
What is the heat absorbed by a 10g block of iron if its temperature increases from 50°C to 60°C? The specific heat of iron is 0.451 J/g °C.
Show your calculations and include units.
Q = 45.1 J
300
the average molecular kinetic energy of an object
temperature
300
When 2 objects have the same _________, they are in _________ _________.
When 2 objects have the same temperature, they are in thermal equilibrium.
300
When does heat stop moving between two objects that are initially different temperatures?
Heat stops moving when the temperatures are the same.
400
when 2 objects are finally the same temperature
thermal equilibrium
400
When the temperature of an object decreases, the _____________ speed up / slow down and their kinetic energy increases / decreases.
When the temperature of an object decreases, the molecules slow down and their kinetic energy decreases.
400
Why is graph #2 better than graph #1 to describe how the temperature changes for two objects in contact?
Graph #1: 
Graph #2:
In graph #1, the temperature of the cold object does not increase.
500
the heat required to increase the temperature of a substance
specific heat capacity
500
Water has a high/low specific heat capacity, because it requires more heat to change its _________.
Water has a high specific heat capacity, because it requires more heat to change its temperature.
500
What is the temperature change of a 5 g block of iron if it absorbs 300 J of heat? The specific heat of iron is 0.451 J/g °C.
deltaT = 133°C