Physics Bell Ringers FULL YEAR - 180 Daily Warm-Ups (Grades 9-12)

This is a full year of physics bell-ringers - 180 short daily prompts that give high school students a steady, five-minute way to begin class. The set spans an entire course. It opens with the tools the rest of the year depends on: SI units and scientific notation, significant figures and unit conversion, the difference between a scalar and a vector, distance against displacement and speed against velocity, acceleration, the kinematic equations, reading position-time and velocity-time graphs, free fall, and projectile motion. It then turns to forces: free-body diagrams, Newton's three laws, mass and weight and the normal force, static and kinetic friction, uniform circular motion and centripetal force, universal gravitation and orbits, and momentum, impulse and collisions.

The third unit covers work, energy and power: work and the joule, kinetic energy and why it depends on the square of the speed, gravitational and elastic potential energy, conservation of energy, power, simple machines and mechanical advantage, temperature against thermal energy, conduction and convection and radiation, specific heat and phase change, the gas laws, and the laws of thermodynamics. The final unit covers waves and fields: wave properties and the wave equation, reflection and refraction and diffraction and interference, sound and pitch and loudness and the Doppler effect, light and the electromagnetic spectrum, mirrors and lenses, electrostatics and Coulomb's law, current and voltage and resistance and circuits, magnetism and electromagnetism, and a first look at the wave and particle behaviour of light.

Prompts are arranged into 36 weekly pages, each holding five days of work a teacher can hand out on Monday and collect on Friday. Every week rotates through the same five kinds of thinking: a term used rather than recited, a short reading with a question that requires reading it, an analysis problem, a quick multiple-choice check, and a question that asks students to state a claim and back it with evidence. On this subject the Wednesday analysis prompt is usually a calculation, and every calculation in the set resolves to a clean value - deliberately, so a warm-up stays a warm-up rather than becoming a problem set, and so a teacher can check a whole class at a glance. Correct answers on the multiple-choice day are distributed evenly across all four positions, so there is no pattern for students to guess.

Every reading passage is original writing, so there is no third-party text to clear and no textbook is required. Everything is print-first: one clean PDF that copies well, uses little ink, prints two-sided so a full week fits on a single sheet, and needs no student accounts, devices or logins. A complete answer key covers all 180 prompts, and a standards page lists the NGSS high school physical science codes and the CCSS literacy in science and technical subjects codes the set actually addresses - each one earned by a recurring prompt slot or by a named block of weeks rather than claimed in general. Built for grades 9-12, and for conceptual physics as much as for the algebra-based first-year course, it works as a daily opener while attendance is taken, as an exit slip at the end of the period, as spiral review before an exam, or as ready-made work to leave for a substitute teacher on short notice.