StudyBrixFree worksheets, study guides and courses

Subjects

Oscillations

Choose questions individually, practise online, or create a worksheet with matching answers. Counts include generated variants, not only authored originals.

Make a worksheet992 question instances

Sample exercises

University · Oscillations

An ideal mass-spring oscillator has m=0.9 kg and k=390 N/m. Calculate its period. Round the final result to 4 decimal places if needed. Answer in s.

Answer and explanation

0.3018 s

Angular frequency is √(k/m); period is 2π divided by that angular frequency.

University · Oscillations

An underdamped oscillator obeys m x″+b x′+kx=0 with m=3 kg, b=0.4 kg/s and initial envelope 3 cm. Find its envelope after 20 s. Round the final result to 4 decimal places if needed. Answer in cm.

Answer and explanation

0.7908 cm

The decay constant is b/(2m) = 0.4/(6) s⁻¹. Multiply the initial envelope by exp[−bt/(2m)].

University · Oscillations

Two sound intensities satisfy I₂/I₁ = 158. Calculate L₂ − L₁ in decibels. Round the final result to 4 decimal places if needed. Answer in dB.

Answer and explanation

21.9866 dB

Apply 10 log₁₀(158); the reference intensity cancels in the difference.

Study notes

Related courses

Physics4 lessons

University mechanics and waves

Connect rotation, oscillations, central forces and continuous wave models.

32 quiz questions · University
Physics4 lessons

Advanced physics methods and spacetime

Explore perturbation theory, scattering, variational quantum estimates and a conceptual bridge to general relativity.

32 quiz questions · Advanced university