Lesson 3 Gravitational and Kinetic Energy Calculations
Completion requirements
Introduction
The kinetic energy of an object depends on more factors than just the gravitational potential energy of an object.
C3.1 Hummingbird
Kinetic energy is the energy of motion. Imagine a large bald eagle flying toward you or a tiny hummingbird flying toward you. Which bird has more kinetic energy? Why?
Gravitational potential energy is dependent upon the work done on an object. Which would require more work, lifting a ping-pong ball off the ground or lifting a bowling ball? Why?
By the end of this lesson, you will know how to calculate gravitational potential energy and kinetic energy.
Gravitational potential energy is dependent upon the work done on an object. Which would require more work, lifting a ping-pong ball off the ground or lifting a bowling ball? Why?
By the end of this lesson, you will know how to calculate gravitational potential energy and kinetic energy.
Targets
By the end of this lesson, you will be able to-
relate gravitational potential energy to work done using
«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»
«msub»
«mi»E«/mi»
«mi»p«/mi»
«/msub»
«mo»=«/mo»
«mi»m«/mi»
«mi»g«/mi»
«mi»h«/mi»
«/math».
-
calculate kinetic energy using
«math xmlns=¨http://www.w3.org/1998/Math/MathML¨»
«msub»
«mi»E«/mi»
«mi»k«/mi»
«/msub»
«mo»=«/mo»
«mfrac»
«mn»1«/mn»
«mn»2«/mn»
«/mfrac»
«mi»m«/mi»
«msup»
«mi»v«/mi»
«mn»2«/mn»
«/msup»
«/math»
- understand scientific notation and significant digits
Watch This
Significant Digits
https://adlc.wistia.com/medias/p8ku1god3z
This video reviews the rules of significant digits in scientific calculations. When performing calculations and collecting data, the accuracy of the values being used is very important! This will help get you in the right mindset for this lesson.