Projectile Motion Lab

Everywhere

• Topic tabs (under the title) switch between simulations in this lab. Some topics have smaller buttons under the stage for their screens.
• Teach shows live equations with the current numbers and "What to notice" points. Practice gives a numeric problem and a quiz.
• Move the sliders or tap the chips in the right-hand panel. The readings box updates live.
• Pause / Restart control the animation. Clean view hides everything except the stage, for projecting or recording; press Esc to leave it.
• In Practice, type a number (e.g. 12.5 or 3.2e-10), press Check or Enter. Show it on the stage sets the simulation to that problem.
• Nothing is saved: scores reset when the page is reloaded.

Projectile motion

• Set speed u, angle θ, launch height h and gravity (Earth, Moon, Mars, Jupiter), then press Launch.
• Step advances a little at a time; Slow motion runs at quarter speed.
• Show: velocity vectors, predicted path, equal-time dots, keep old paths.
• Demos: Angle family draws 15° to 75°; Complementary pair shows θ and 90° − θ.
• Practice: hit the red target, and write your predicted range first.

Language

• Choose English or বাংলা once on the home page (top right); every lab then opens in that language — tabs, controls, readings, equations, notes, problems and quizzes.

Full guide with teaching tips: User manual (also as a PDF).