Work, Energy, and Power · Paper 1 — Free Physics HL Practice Questions

A block of mass $0.40 \text{ kg}$ starts from rest and slides down a frictionless incline of vertical height $3.0 \text{ m}$. What is the speed of the block at the bottom of the incline?

A spring with spring constant $500 \text{ N m}^{-1}$ is compressed by $0.20 \text{ m}$ from its natural length. A ball of mass $0.10 \text{ kg}$ is placed against the compressed spring on a frictionless horizontal surface and then released. What is the maximum speed of the ball?

A ball of mass $0.30\ \text{kg}$ is swung in a vertical circle on a string of length $0.80\ \text{m}$. At the top of the circle the ball moves at $4.0\ \text{m s}^{-1}$. What is the kinetic energy of the ball at the bottom of the circle?

An arrow of mass $0.050 \text{ kg}$ is fired vertically upward. The bowstring exerts an average force of $150 \text{ N}$ over a draw length of $0.60 \text{ m}$. What is the maximum height reached by the arrow above its launch point? (Ignore air resistance.)