Search the forum,

work

In physics, work is the energy transferred to or from an object via the application of force along a displacement. In its simplest form, it is often represented as the product of force and displacement. A force is said to do positive work if (when applied) it has a component in the direction of the displacement of the point of application. A force does negative work if it has a component opposite to the direction of the displacement at the point of application of the force.For example, when a ball is held above the ground and then dropped, the work done by the gravitational force on the ball as it falls is equal to the weight of the ball (a force) multiplied by the distance to the ground (a displacement). When the force F is constant and the angle between the force and the displacement s is θ, then the work done is given by:




W
=
F
s
cos
⁡

θ



{\displaystyle W=Fs\cos {\theta }}
Work is a scalar quantity, so it has only magnitude and no direction. Work transfers energy from one place to another, or one form to another. The SI unit of work is the joule (J), the same unit as for energy.

View More On Wikipedia.org
Recent contents Top users
  1. O

    Wall hung toilet in brick work with rear soil pipe

    Hi, First post (be gentle!) I joined looking for advice and hope someone can help! I’m looking to get a wall hung toilet but have a couple of issuers. The wall is breeze block (3 inch thick) then a cavity before the external wall. The cavity is about 4-6 inches in size from what I can tell...
    • OutOfMyDepth!
    • Thread
    • america brick pipe soil soil pipe toilet usa wall wall hung wall-hung work
    • Replies: 13
    • Forum: USA
  2. J

    Will a thermostatic shower mixer work with two hot supplies?

    I won't go into the specifics here because it'd be far too long, but in a system I'm building I have two hot supplies - one between 25C and 35C, and one between 45C and 70C. (In short, I have two heat sources that perform differently under different conditions). I want an output temperature of...
    • justcarter
    • Thread
    • hot mixer shower shower mixer supplies thermostatic work
    • Replies: 2
    • Forum: Ireland
  3. C

    I'm gas safe thru employer. I want to have my own gas number too

    Like I said I'm gas safe registered through the company I work for (day job) but want my own gas number so I can install and commission boilers for family, people that I know, etc. Obviously I've got the qualifications or else I wouldn't be registered through work but I'm just curious, do I...
  4. Husk24

    Why does downstairs heating has to be on for upstairs to work?

    Hi All I have a question regarding my heating setup, I moved in 5 years ago and since replaced boiler and added 3 nest controls. I have a system boiler with water cylinder and have three nest thermostats, one controls and turns on the boiler for downstairs apart from the conservatory where I...
  5. SlimD

    Heating needs hot water on to get it to work

    After advice: Got a sealed heating system run off an old Potterton Suprema system boiler. Can only get heating to come on by turning on both heating and hot water. Then once boiler fires turn hot water off and heating kicks in after a few minutes but Heating won’t come on by itself when first...
  6. R

    Do these regulation valves also firmly isolate pipe work?

    Hi. Will this crane regulator valve act as an isolation valve too allowing for alterations? Many thanks.
    • RobReid
    • Thread
    • america isolate pipe these usa valves work
    • Replies: 1
    • Forum: USA
  7. K

    Wood stove above with thermal store below - can this work safely?

    Hello all, I'm searching for advice on my new system being fitted into a very old stone house in France. We have purchased a thermflow 300L thermal store with a built-in expansion tank to work with multiple heating inputs (solar, electric and wood burning stove boiler). We are running 7 rads...
    • KylieS
    • Thread
    • above below store stove thermal thermal store work
    • Replies: 19
    • Forum: Renewables
  8. W

    How to get work after nvq level 2

    Hello, could someone talk to me about how hard is it to get work while doing your nvq level 2? How hard is it to find someone willing to take you on? What's the best way to go about finding work? And if i get taken on how long will i have to work before i earn decent money. Im in my mid 20s...
  9. H

    MIN WAGE WORK FOR EXPERIENCE BRISTOL

    HI I’m 32 , doing a level 2 NVQ and gas safe after . Looking to work for a plumber/heating engineer to gain more experience. All courses already paid for so no outlay to plumber. Thanks, Henry
  10. L

    looking for work to complete studies

    Have completed a diploma in plumbing studies and am currently looking for work to allow me to continue my studies in nvq level 2 within the sussex area thanks
  11. king of pipes

    What we all driving out of work time .

    With my first grandchild due in October and a 2.5 hour journey each way to visit my son his partner and new granchild I need to upgrade my ageing Honda CRV I think it will be another one but maybe a automatic this time , what do you guys drive and use as a family car and recommend for long...
  12. B

    How does water work in flat, is this right?

    Hi everyone, just a question for my own knowledge and understanding of how water works in my flat and making sure everything complies with water regulation in the UK. , The flat is circa 1960s used to have a hot water cylinder and cold water tank in the cupboard but since late 90s or early 2000...
    • BobbyJoe
    • Thread
    • america flat right usa water work
    • Replies: 2
    • Forum: USA
  13. M

    HELP pipe work advice

    Can anyone help how to tidy up this pipework in our kitchen?
    • michaelg
    • Thread
    • advice america help pipe usa work
    • Replies: 0
    • Forum: USA
  14. D

    Gas pipe work long run from Gas meter in large property

    I am new gas safe and met hard situation when I did gas safety check on large property with 3 acre site. The property is old and large size, installed two 30KW heat only gas boiler to supply CH and DHW, range cooker and gas hob. I was be told the meter is installed at the entrance of the...
  15. Richard Logan

    Could you take a look at pics and advice

    Ime getting a new boiler fitted Worcester bosh, by EON Contractor treason for new boiler its 12 yes old and knackered, as I get DLA and pension credit guaranteed, but my main concern is the state of existing pipework, please have a look @ pics and your advise please Richard
    • Richard Logan
    • Thread
    • advice america boiler could new boiler pipe urgent usa work
    • Replies: 30
    • Forum: USA
  16. A

    Plumbers looking for work

    Small family owned growing company looking for honest, reliable plumber in the Ft Lauderdale area. Anyone looking to move to South Florida or is located in Ft Lauderdale area send me a message.
  17. P

    Site work to domestic work

    Hi guys and girls I'm based in Oxfordshire, I have 5 years background in plumbing and heating. I currently have my level 2 and 3 in plumbing and heating and I also hold my gas Safe card. Over the past 5 years I've been working on construction sites in installation (1st & 2nd fix). I feel like...
  18. D

    Free work to gain experience near Portsmouth

    Hello My name is David, I'm 33 and looking for the opportunity to work for a plumber/gas engineer in South Hampshire. I'm based just outside Portsmouth but I do drive. I have completed my level 2 and NVQ and have 3 years work experience on new builds. I was employed and doing my gas course but...
  19. S

    Free work to gain experience

    Looking for work free work in Birmingham Worcestershire area need to gain more experience having passed my level 2 plumbing studies I’m 24 and a keen worker
  20. S

    2 seperate heating systems - how do they work together?

    I have recently moved house and trying to understand how my heating systems work, and this is because it seems to be inconsistent. Firstly to explain my setup, I have a normal heating system with a tank in the loft and cylinder in the airing cupboard and Honeywell wall stat. My house also has an...
Creating content since 2001. Untold Media.

Newest Plumbing Threads

Back
Top
AdBlock Detected

We get it, advertisements are annoying!

Sure, ad-blocking software does a great job at blocking ads, but it also blocks useful features of our website. For the best site experience please disable your AdBlocker.

I've Disabled AdBlock