PhysicsExplorer
Problem Bank
Conceptual, numerical and derivation problems across core physics topics.
Filter by level, difficulty, topic or exam tag to practise intentionally.
Charging a Parallel-Plate Capacitor
undergrad | medium | electromagnetism
Reinforce your understanding of capacitance, voltage and stored energy using a simple charging capacitor problem.
Block on an Inclined Plane with Friction
school | medium | mechanics
Practice resolving forces on an inclined plane and learn how friction affects the motion of a block sliding down.
One-Dimensional Elastic Collision of Two Carts
undergrad | medium | mechanics
Apply conservation of momentum and kinetic energy to solve a head-on elastic collision between two carts.
Conceptual Questions on the Photoelectric Effect
undergrad | medium | modern-physics
Test your understanding of the photoelectric effect using purely conceptual questions that target your intuition, not just formulas.
Time Period of a Simple Pendulum (Small Angle Approximation)
school | easy | oscillations
Use the small-angle approximation to calculate the time period of a simple pendulum and see how length and gravity affect its motion.