Shm Investiagtion Flashcards
How to do SHM with spring and mass and oscislltion
1) prove amplitude independent of time period
Fiducial marker
1) lift mass , release, measure time period
2: record and measure 10 and then reduce uncertisntynm divide by 10
Vary amplitude, show it’d thr same
This thing of time period true for small angles ONLY, how to ensure this? (For pendulum )
Always mention, release through a small angle less than 10, measure with protractor , or trig
How to measure mass
TOP PAN BALANCE
Pendulum?
Ensure angle is less than 10 using protractor, so that SHM is observed
1) measure time for oscialltioms etc
2) vary length and measure time period to compare
How to vary lenght?
Measure from CENTRE OF BOB to top
What does taking repeats minimise?
The effect of RANDOM ERROR,
Ensure you measuee from where ( Fiducial marker)
From the centre equilborum as faster and constant from here,
Remmeber parallax etc
Repeats vary
How about using pendulum for finding g!
How to measure v?
Compare mgh to ke
Vary h
Use light gates
How to accurate measure amplitude
Postion sensor and computer
