Potential or Kinetic?
Calculating Energy
Transformations
Vocabulary
Random
100
A stretched rubber band.
Elastic Potential Energy
100
What is the GPE of a book that weighs 8 N sitting on a shelf that is 3 meters high?
24 Joules
100
A roller coaster begins to move down the first big hill. __?__ is turning into __?__.
GPE --> KE
100
The ability to do work
Energy
100
What type of energy is impacted by height?
GPE
200
A marble rolling across the table.
Motion Kinetic Energy
200
What is the GPE of a bag of rice that sits in a pantry 2 meters above the ground and has a mass of 3 kg?
58.8 J
200
A compressed spring that is let go would convert
__?__ to __?__ ?
Elastic Potential Energy to Motion Kinetic Energy
200
The force that attracts objects towards other objects with mass
Gravity
200
Kinetic energy increases MOST as __?__ increases.
Velocity
300
Water at the top of a waterfall.
Gravitational Potential Energy
300
What is the kinetic energy of an object that has a mass of 24 kilograms and is moving at a speed of 5 m/s?
300 Joules
300
What point has the max KE?
Point B
300
The energy in the vibration of atoms (into waves)
Sound Kinetic Energy
300
An object has a gravitational potential energy of 24 joules when it rests on a shelf 3 m above the ground. What would be its gravitational potential energy when it is lowered to a shelf 1 m above the ground?
8 Joules
400
Sunlight heating the pavement for a snake.
Radiation Kinetic Energy
400
Gravity is 3.7 m/s on Mars. What would the GPE of an object that sits 5 m above the surface and has a mass of 10 kg be?
185 Joules on Mars
400
0.4 Joules
400
A unit of measure of speed
Meters / Second
400
Describe the energy at point 3.
Increasing GPE (increasing height)
Decreasing KE (decreasing speed)
500
Juice contained within an orange.
Chemical Potential Energy
500
What is the kinetic energy of an object that weighs 49 N and is traveling at a speed of 3 m/s?
22.5 Joules
500
The energy conversion that occurs when the Sun helps grown an apple on a tree is best described as: __?__ --> __?__
Radiation Kinetic (sunlight) --> Chemical Potential (sugars that are created)
500
This states that the total energy of a system remains constant — it is said to be conserved over time
The Law of Conservation of Energy
500
Which sled has more GPE?
Sled A: 49,000 J
Sled B: 58,800