Energy Types
Thermal Energy
PE + KE
Heat Transfer
Graphs & Math
100
Stored energy.
Potential Energy
100
Describe what happens to molecular movement as an object heats up.
Increase, molecules will move faster as heat is added.
100
At what position would there be the most potential energy?
Position A (highest point)
100
What type of heat transfer is shown below? 
Conduction
100
What variable goes in A?
BONUS: Describe the relationship.
Mass.
Linear relationship.
200
Energy of motion.
Kinetic Energy
200
What happens to volume as you heat a substance?
Volume increases (molecules spread out).
200
What is the formula for PE?
BONUS 1: Name the variables.
BONUS 2: Name the units.
PE = mgh
m = mass
g= acceleration due to gravity
h = height
UNITS - Joules (J)
200
What variable goes in B?
BONUS: Describe the relationship.
Velocity.
Exponential, nonlinear.
300
What is the formula for KE?
BONUS 1: Name the variables.
BONUS 2: Name the units
KE = 1/2(m)(v2)
m = mass
v = velocity
UNITS - Joules (J)
300
Identify the heat transfer process shown below.
Convection
300
Describe the relationship between string length and the time to complete one swing.
As the string length increases, the time to complete one swing increases (direct relationship).
400
The sum of all KE and PE in a system.
Mechanical Energy
400
Why is heating something a physical change?
Heat will change the state (melting, boiling) or temperature without changing its composition.
400
Calculate the KE of a 8.5 kg bicycle moving at 7 m/s with correct units.
208.25 J
500
Calculate the PE of an object with a mass of 8 kg at a height of 5 m above Earth's surface with correct units.
392.4 J