You are Here: Home >< Physics

# Simple Pendulum

Announcements Posted on
Would YOU be put off a uni with a high crime rate? First 50 to have their say get a £5 Amazon voucher! 27-10-2016
1. Hi, How can I prove that a pendulum follows SHM? I have data from an experiment and the angle used is 20 degreesBefore using the T = 2pi*SqRoot(L/g) I want to say the Pendulum follows SHM Could someone help me about how I can prove it pleaseeeeeeeeeeeee?Thanks
2. That's similar to a recent post about SHM in a spring and mass system http://hyperphysics.phy-astr.gsu.edu.../pendl.html#c2

simple pendulums are a bit different in that they approximate SHM (because the restoring force is part of a vector triangle) you can show SHM by using a small angle approximation - the approximation of SHM is close when the angle is 'small'

http://hyperphysics.phy-astr.gsu.edu.../pendl.html#c2
3. (Original post by CalissaRelics)
Hi, How can I prove that a pendulum follows SHM? I have data from an experiment and the angle used is 20 degreesBefore using the T = 2pi*SqRoot(L/g) I want to say the Pendulum follows SHM Could someone help me about how I can prove it pleaseeeeeeeeeeeee?Thanks
You may want to watch this video starting at 27:48 to see the "proof". You may want to double-check with your teacher about the angle (20 deg) you use. If this is the angle given by your teacher, then use it.

## 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: August 26, 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

### University open days

Is it worth going? Find out here