Physics Study Guide 2026
Everything you need to pass the Physics exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.
📋 Physics Exam Format at a Glance
📚 Physics Topics to Study (37)
✍️ Sample Physics Questions & Answers
1. What happens during nuclear fission?
Nuclear fission is the splitting of a heavy nucleus (like uranium-235) into two smaller nuclei, releasing large amounts of energy and several neutrons.
2. Kepler's Third Law states that the square of a planet's orbital period is proportional to:
Kepler's Third Law: T² ∝ a³, linking the orbital period T to the semi-major axis a of the orbit.
3. What role does ethics play in Waves and Sound practice?
Professional ethics provide frameworks for responsible decision-making, ensuring practitioners act in the best interest of those they serve.
4. Which of the following is an example of a longitudinal wave?
Longitudinal waves are characterized by particles of the medium oscillating parallel to the direction of wave propagation. Sound waves are a classic example; they travel through a medium by creating compressions and rarefactions, where the particles vibrate back and forth along the same direction the sound energy is moving.
5. Which of the following processes is spontaneous and results in an increase of entropy?
Mixing two different ideal gases is irreversible and increases the total entropy of the system.
6. In a series RLC circuit at resonance, the impedance is:
At resonance X_L = X_C, so they cancel and the total impedance Z = R.