ORELA Physics (NT308) case studies
ORELA Physics (NT308) · Put your knowledge to work in context.
Physics (NT308) is one of the National Evaluation Series™ tests listed within the Oregon Educator Licensure Assessments (ORELA) program, the assessment system Oregon uses for educator licensure. On the ORELA test table it appears as "Physics (for testing through 8/31/2027)," a qualifier that flags a scheduled end point for this listing; a second, unqualified "Physics" entry (NT323) appears beside it. Because ORELA notes that testing requirements depend on licensure type, confirm with your educator preparation program which physics test applies to you. The exam spans the range expected of a physics teacher: the nature of science and scientific inquiry, including measurement and the history and nature of physics; mechanics; thermodynamics and properties of matter; waves and optics; electricity and magnetism; and modern physics. The ORELA Physics (NT308) case studies are 5 cases and about 2,962 words.
1Two Measurements of g: Precision Without Accuracy
In a first-year physics lab, two groups determine g. Group A uses a simple pendulum with a clamp-to-bob-center length of 0.950 m and times 20 complete oscillations in 40.0 s.
623 words, about 3 min2Pulling a Puck Inward: Angular Momentum Versus Energy
A 0.50 kg puck on a level air table is tied to a string that passes through a small central hole. The puck moves in a circle of radius 0.40 m at 2.0 m/s.
588 words, about 3 min3Resonance Tube: Which Length Difference Is Trustworthy?
A student uses a vertical resonance tube open at the top and closed by a water surface. A 512 Hz tuning fork is held above the open end.
570 words, about 3 min4Two Circuits, One Resistor: Meter Placement Matters
A student measures an unknown resistor using a 0–20 V voltmeter with 100 kΩ input resistance and a 0–1 A ammeter with 0.50 Ω resistance. In circuit A, the voltmeter is connected directly across the resistor and the ammeter is in series with the parallel combination.
617 words, about 3 min5Photoelectric Effect: One Unsettled Point
A student studies the photoelectric effect using a cesium photocathode with a work function of 2.10 eV. Light from a mercury lamp passes through filters to give five frequencies.
564 words, about 3 min