work

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Jina Kwon
Posts: 100
Joined: Fri Aug 09, 2019 12:15 am

work

Postby Jina Kwon » Sat Jan 25, 2020 3:23 pm

what is the exactly equation used to calculate work

lilymayek_1E
Posts: 107
Joined: Sat Aug 17, 2019 12:16 am

Re: work

Postby lilymayek_1E » Sat Jan 25, 2020 3:26 pm

work is defined as achieving some sort of motion against an opposing force, and is characterized by the equation w= opposing force(on object/system) x distance moved. you can think of it as lifting an object up off the ground; you're opposing the force of gravity by lifting that object, and moving it up/down a particular distance.
table 4A.1 has good examples of work equations with different forces.

Sofia Ban
Posts: 80
Joined: Fri Sep 28, 2018 12:25 am

Re: work

Postby Sofia Ban » Sat Jan 25, 2020 3:59 pm

work=opposing force x distance moved and work(w) is usually reported in joule (J).
This equation reflects the definition of work, which is the process of achieving motion against an opposing force

Megan Vu 1J
Posts: 101
Joined: Thu Jul 25, 2019 12:15 am

Re: work

Postby Megan Vu 1J » Mon Jan 27, 2020 2:18 pm

Work is used by the equation of:
w = opposing force x distance moved.
There are many different equations of work that is used depending on the situation, but this is the overall equation for work.

For example, to calculate the work with pressure as well as a change in volume, you can use the equation
w = - P * change in V because it showcases the pressure times the change in volume in order to get the work in Joules.

MariaJohn1D
Posts: 50
Joined: Wed Nov 08, 2017 3:01 am

Re: work

Postby MariaJohn1D » Mon Jan 27, 2020 2:45 pm

Work is w=-P (pressure) (change in volume) . If the volume is increasing or decreasing change the sign accordingly. Also to convert J times atm to J multiply the value by 101.325 J/ L times atm.

Keerthana Sivathasan 2E
Posts: 101
Joined: Wed Sep 18, 2019 12:22 am

Re: work

Postby Keerthana Sivathasan 2E » Mon Jan 27, 2020 2:53 pm

Work can be calculated using several formulas like Fd, PV, and Delta U-Q, depending on the situation, so you would have to be more specific in your question.


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