Heat & Temperature
Curves
Word knowledge
Energy & Phase diagrams
100

Heat energy always transfers from the ______ substance to the ________ substance.

hot, cold

100
What two phase changes occur in a heating curve?

melting, boiling

100

Exothermic means:

Releasing Heat

100

Name any type of energy and use a real life example of it occurring.

Answers may vary.

200
The slope of sand, wood, and granite are shown. Wood has the steepest slope, while sand has the most gradual slope. Which substance is the hardest to change the temperature of?

Wood

200

What two phase changes occur in a cooling curve?

condensation, freezing

200

Endothermic means: 

Absorbing heat

200

Name 2 types of energy that haven't been discussed yet an give an example of each.

Answers may vary

300

Copper has a specific heat capacity of 0.385 J/g°C. Iron has a specific heat capacity of 0.45 J/g°C. Lead has a specific heat capacity of 0.129 J/g°C. Which metal's temperature is the easiest to change?

Lead

300

What is it called when two or more phases of matter are present at the same time?

equilibrium

300
Definition of Temperature

Average Kinetic energy

300

Name 3 types of energy that occur in a battery powered flashlight

light, electrical, chemical
400

Convert 25°C to °F

77°F

400
How many phases are present when kinetic energy is changing for a substance? What are they?

1 phase - solid, liquid, or gas

400

Energy being transferred from one substance to another cooler substance

Heat

400

What are the two variables that impact a phase change on a phase diagram

Temperature & Pressure

500

Convert 32°F to Kelvin

273.15 K

500

What type of energy is increasing or decreasing during a phase change?

Potential energy

500

How much heat is needed to change the temperature of a substance

Specific Heat Capacity

500

Name all 6 phase changes

Sublimation, deposition, boiling, melting, condensation, freezing

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