1 / 15

Understanding Work and Energy: Key Concepts in Physics

Work and energy are fundamental concepts in physics, describing how forces cause movement and the capacity to perform work. Work occurs when a force causes an object to move, calculated as Work = Force x Distance, measured in Joules (J). Energy exists in various forms, including kinetic energy (KE) and potential energy (PE). Kinetic energy relates to an object's motion, while potential energy is linked to its position or shape. This guide explores the different forms of energy, including thermal, chemical, electrical, sound, light, and nuclear energy, illustrating the principles that govern them.

bianca-osborn
Télécharger la présentation

Understanding Work and Energy: Key Concepts in Physics

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. energy Ability to do work ___________________ ___________________________ occurs when a force causes an object to move in the direction of the force _______________________________ work

  2. force distance Work = ____________ x _________ When work is done _______________ is given by 1 object to another energy

  3. Joule (J) Work & energy units _________________ 1 J = amount of energy to lift an apple 1 m Average serve of tennis ball = 75 J of KE Fastball pitch = 120J of KE Football pass = 150J of KE Energy of motion ___________________ kinetic energy

  4. KE = mv2 2 _______________ has a greater effect on kinetic energy than _____________ KE of a snail (mass 5g) traveling at 0.014 m/s0.00000048J KE of an 18-wheel truck traveling at 26.69 m/s 2,200,000 J speed mass

  5. Energy of an object due to its position or shape ______________________________ _________________potential energy (GPE) is work done on an object when opposing the force of gravity; work done on an object to lift it to a given height potential energy gravitational

  6. GPE depends on ________________ & ____________ GPE = weight x height Units (N x m ) = ___________ weight height Joule (J)

  7. PE of a stretched bungee or a stretched rubber band _____________________ elastic potential energy

  8. Total energy of motion and position ____________________________ Can be ____, ____, or _______ ME = PE + KE Mechanical Energy PE KE both

  9. Forms of energy ________________________ ________________________ ________________________ ________________________ _________________________ _________________________ thermal chemical electrical sound light nuclear

  10. Thermal Total energy of particles in an object More energy if ________________________ _________________________ moving fast more particles

  11. Chemical Work done to form compound is stored in chemical bonds between _________ Form of __________________energy __________ consists of chemical compounds atoms potential food

  12. Electrical Energy of _________________________ Electrical energy of moving electrons is used to__________________________ Form of _____________________energy moving electrons do work kinetic

  13. Sound Cause by an object’s _________________ which transmit ________________ from ______________ to ___________ Form of ___________ & _________ energy vibrations energy particle particle kinetic potential

  14. Light Caused by the _____________ of electrically charged particles which transmit _____________________ vibrations energy

  15. Nuclear Energy associated with changes in the _______ Produced when ____ nuclei join (ex: hydrogen in sun forms heliumcan only occur at 100,000,000 oC) Or When ____ nucleus splits (ex: PE stored in uranium) nucleus 2 1

More Related