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What is "Payback Time?" (Reducing Heat Loss from the home) Watch

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    Could someone define it?


    xx
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    (Original post by mariam687)
    Could someone define it?


    xx
    Payback time is the amount time needed to payback upfront costs from the amount of money you've saved.

    Payback time= initial cost/ annual saving
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    (Original post by mariam687)
    Could someone define it?


    xx
    The time it takes to pay back the original cost. I buy a set of energy saving lightbulbs, they cost me £40 and save me £5 every year, what is the payback time? The payback time would 40/5 = 8. 8 years is the payback time.
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    (Original post by one_man_abdullah)
    The time it takes to pay back the original cost. I buy a set of energy saving lightbulbs, they cost me £40 and save me £5 every year, what is the payback time? The payback time would 40/5 = 8. 8 years is the payback time.

    oh right!! thanks man

    my revision guide is so vague and its worded horrible

    your example helped!!

    thanks again
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    (Original post by mariam687)
    Could someone define it?


    xx
    Are you doing OCR Gateway?
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    (Original post by *Alisha*)
    Are you doing OCR Gateway?



    yes and the triple science
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    (Original post by mariam687)
    yes and the triple science
    Yes same I'm doing Triple Science. Can I follow you???
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    (Original post by *Alisha*)
    Yes same I'm doing Triple Science. Can I follow you???
    sure haha u don need to ask lol
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    (Original post by mariam687)
    sure haha u don need to ask lol
    Want to study science??? Like share notes and test each other somehow on this?
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    (Original post by *Alisha*)
    Want to study science??? Like share notes and test each other somehow on this?
    yh sure, jus pm me if u want some notes or ur stuck, i'll ask u too

    im usually online quite a lot so i'll be able to reply straight away
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    (Original post by mariam687)
    yh sure, jus pm me if u want some notes or ur stuck, i'll ask u too

    im usually online quite a lot so i'll be able to reply straight away
    Ok thanks, and yeah I'll help you to.
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    I've attached a word document with my physics notes for P1. I've got a test on P2a to d
    Attached Files
  1. File Type: docx P1 Energy For The Home Revision Guide.docx (149.1 KB, 55 views)
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    (Original post by *Alisha*)
    I've attached a word document with my physics notes for P1. I've got a test on P2a to d
    wow, these notes are great! i jus flicked through them and im impressed tbh

    with me, i dont make notes, i dont type or write them i dont feel personally thts the best way of revision, im ver different ahaha

    ofc if you find this technique use it

    but with me, i revise straight from my revision guide (i'll link the revision guides below) the guide is amazing srs, using my revision guide i got a B in bio and B in chem which i was pretty happy about and that mock was on modules B4,5,6 C4,5,6 which are pretty hard modules tbh harder than modules 1,2,3.

    anywhoo, what i do is i read from my revision guide out loud, kinda like teaching myself, and i highlight and annotate my revision guide

    if u saw how many annotations i made in my revision guide you'd be surprised at how much ive done, might send you a pic of a page sometime.

    i really find reading aloud helpful but ofc if you feel that making notes helps, then by all means DO IT, i may use ur notes for quick revision here nd there but im impressed.


    here are the revision guides i DEFINATELY recommend:
    http://www.amazon.co.uk/OCR-Gateway-.../dp/1844191575 biology

    http://www.amazon.co.uk/OCR-Gateway-...4XHSWTDJXPXSD7 physics

    http://www.amazon.co.uk/OCR-Gateway-...ACMQQPRSSPQ5V0 chemistry


    i make annotations in these revision guides ^^^^^^

    oh and btw if u buy them allotgether then its cheaper than buying seperately






    let me kno if u need help
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    What are you currently studying in your science lessons? For Biology i'm on B3e, Chemistry -----> We just finished our CA and we skipped C2 for now and got a C3a to d test coming up. Where in P2 a to d for Physics (The teachers slow and crap).
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    I use CGP Books. There really good
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    I've got the mocks for science and maths
 
 
 
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