Potential Energy
What is the definition of potential energy?
the stored energy of position possessed by an object.
A boulder with a mass of 125kg is rolling down a hill at a speed of 20m/s. What is the kinetic energy of the boulder?
25,000 J
What is the law of conservation of energy?
No energy is created, and no energy is destroyed but can be changed from one form to another
When a bowling ball reaches the pins at the end of the lane, the balling bowl transfers kinetic energy to the pins.
What is this an example of?
Law of Conservation of Energy
What is the definition of kinetic energy?
the energy of motion
What is the equation formula for potential energy?
PE= m x g x h
Treveon has an avergae mass of 54kg and is on a 60 meters in the sky on a ferris wheel. What is Treveons potential energy?
31,752 J
What is an open system?
can exchange both energy and matter with its surroundings
If Willayah is running, she is showing an example of what?
kinetic energy
What is the equation formula for kinetic energy?
KE= 1/2 x m x v2
What are the 2 types of potential energy?
gravitational & elastic potential energy
Giancarlo was walking at a speed of 1.4m/s. Giancarlo has an average mass of 54kg. What is his kinetic energy?
52.92 J
53 J
What is a closed system?
can exchange only energy with its surroundings, not matter
If Falisa is sitting down in class, what example of energy is she showing?
potential energy
What are the 3 types of kinetic energy?
vibrational, rotational, translational
What is gravitational potential energy?
the energy stored in an object as the result of its vertical position or height
Brian decided to go sledding off a 3 meter hill near his neighborhood. Brian has an average mass of 54kg. He went down that hill at an average speed of 5.87m/s. What is potential and kinetic energy?
PE= 1,587.6 J
KE= 930.3363 J
Is an electric tea kettle an open system or closed system?
open system
What is Miss Felix favorite place to eat?
chipotle
What is vibrational kinetic energy?
the energy due to vibrational motion
What is elastic potential energy?
the energy stored in elastic materials as the result of their stretching or compressing
A bowling ball has an average mass of 6.4 kg. It has average rolling speed of 8m/s. What is the average kinetic energy of a bowling ball?
204.8 J
closed system
What's the dogs name Miss Felix always has in her camera?
Jojo
What is translational kinetic energy?
the energy due to motion from one location to another