# Determine the value of Q for each of the oscillators

## Homework Statement

http://dspace.jorum.ac.uk/xmlui/bitstream/handle/10949/1022/Items/T356_1_030i.jpg [Broken]

Taking measurements from Figure 1, determine the value of Q for each of the oscillators represented. Explain how you obtained your answer. I haven't made an attempt as answering this as i'm unsure where to start. Any suggestions would be appreciated.

## Homework Equations

The rate at which the mass–spring system loses energy to its surroundings is referred
to as the Q-value for the oscillator. The Q-value is defined as:

Q= 2π (E \ ΔE)

ΔE/E is the fractional energy loss per cycle of the oscillation

This can be expressed in terms of angular frequency as:

Q= (ω/ Δω)

or frequency as:

Q= ( f/ Δf)

where Δ ω and Δ f are the width of the peak at its halfway point.

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## Answers and Replies

NascentOxygen
Staff Emeritus
Science Advisor
Hi Ryan. http://img96.imageshack.us/img96/5725/red5e5etimes5e5e45e5e25.gif [Broken]

Q can be expressed in terms of angular frequency as:

Q= (ω/ Δω)
This relation is what you'll use to estimate Q. Can you explain what it's saying?

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