Question
Devices that measure this quantity are often used in seismographs, so their proof mass is sometimes called “seismic mass.” For 10 points each:
[10e] Name this quantity, the rate of change of velocity.
ANSWER: acceleration [or linear acceleration; prompt on a]
[10m] Aircraft accelerometers are included in navigation systems named for this adjective. This adjective describes non-accelerating reference frames.
ANSWER: inertial [accept word forms like inertia]
[10h] In a MEMS accelerometer, displacement of the seismic mass yields a measurable change in this electromagnetic quantity, which scales with one over separation distance. Positioning systems that detect displacement via this quantity are contrasted with ones that detect eddy currents.
ANSWER: capacitance [or nominal capacitance; prompt on C] (Capacitive displacement sensors rely on an electric field, while eddy current displacement sensors rely on a magnetic field.)
<Adam Silverman, Science - Physics> ~23910~ <Editor: David Bass>
Data
Summary
| Tournament | Edition | Exact Match? | Heard | PPB | Easy % | Medium % | Hard % |
|---|---|---|---|---|---|---|---|
| 2024 PACE NSC | 06/08/2024 | Y | 36 | 19.72 | 100% | 75% | 22% |