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

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soIiIoquy
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Could someone define it?


xx
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gapyear2018
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(Original post by mariam687)
Could someone define it?


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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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Ahahabdi
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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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soIiIoquy
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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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username2427341
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(Original post by mariam687)
Could someone define it?


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



yes and the triple science
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username2427341
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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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soIiIoquy
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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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username2427341
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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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soIiIoquy
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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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username2427341
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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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username2427341
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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
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soIiIoquy
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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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username2427341
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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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username2427341
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I use CGP Books. There really good
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username2427341
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I've got the mocks for science and maths
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