You are Here: Home >< Physics

# URGENT: exponential tests

Announcements Posted on
Four hours left to win £100 of Amazon vouchers!! Don't miss out! Take our short survey to enter 24-10-2016
1. If given a data set and asked to determine whether there is an exponential relationship between the data, how do you do this???

For example:

Any help would be much appreciated!!
2. (Original post by pippabethan)
If given a data set and asked to determine whether there is an exponential relationship between the data, how do you do this???

For example:

Any help would be much appreciated!!
You're probably familiar with thinking about half life when you're considering exponential change e.g. the number of undecayed nuclei halving in a constant period, halving again in a period equal to the first etc. etc.
well there's nothing special about one half, if you count the number of undecayed nuclei at any regular interval the ratio between the current count and the previous count would be a constant value.

3. (Original post by Joinedup)
You're probably familiar with thinking about half life when you're considering exponential change e.g. the number of undecayed nuclei halving in a constant period, halving again in a period equal to the first etc. etc.
well there's nothing special about one half, if you count the number of undecayed nuclei at any regular interval the ratio between the current count and the previous count would be a constant value.

This was really helpful, thank you so much

## Register

Thanks for posting! You just need to create an account in order to submit the post
1. this can't be left blank
2. this can't be left blank
3. this can't be left blank

6 characters or longer with both numbers and letters is safer

4. this can't be left empty
1. Oops, you need to agree to our Ts&Cs to register

Updated: June 20, 2016
TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Today on TSR

### Who is getting a uni offer this half term?

Find out which unis are hot off the mark here

### How to get a 1st class degree

Poll
Study resources

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.