HS Physics

Draft build — Topics 0 and 1 (Motion in One Dimension), plus the first waves lessons, chain-lesson format. Lessons marked "coming" are planned in the approved chain plan and not yet written.

Topic 0 · Introduction

What physics isready

Topic 1 · Motion in One Dimension — Tools

1Units for motionready
2Speeds you can compareready
3Where you are depends on where you standready
4Distance and displacementready

Words and numbers

5Velocityready
6Right now vs on averageready
7Scalars and vectorsready
8When velocity changesready
9Measuring accelerationready
10Acceleration's signready

Graphs

11Reading position-time graphsready
12Position-time graphs: shape, build, checkready
13Reading velocity-time graphsready
14The area under a velocity-time graphready
15Building velocity-time graphsready
16Acceleration-time graphsready
17Between v-t and a-tready
18Three graphs, one motionready

The kinematic equations

Topic introduction — watch first

19The first kinematic equationready
20Rearranging v = v₀ + atready
21Practice: v = v₀ + atready
22The equation on the graphready
23The second equationready
24Rearranging Δx = v₀t + ½at²ready
25Practice: Δx = v₀t + ½at²ready
26The no-time equationready
27Rearranging v² = v₀² + 2aΔxready
28Practice: v² = v₀² + 2aΔxready
29The average-velocity equationready
30Practice: Δx = ½(v₀ + v)tready
31Choosing the right equationready
32Trips with more than one stageready
Topic summary — watch before the test — brief ready for Perplexity (summary_kinematics.mp4)coming

Topic 11 · Waves — conceptual golden drafts, for your markup

Topic introduction — watch first — brief ready for Perplexity (intro_waves.mp4)coming
W1Oscillationsready
W2What a wave isready
W3Two kinds of waveready
W4Measuring a waveready
Topic summary — watch before the test — brief ready for Perplexity (summary_waves.mp4)coming

Free fall

Topic introduction — watch first — brief ready for Perplexity (intro_freefall.mp4)coming
33Free fallready
34Dropped objectsready
35Thrown upwardready
36The whole flightready
Topic summary — watch before the test — brief ready for Perplexity (summary_freefall.mp4)coming