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.

Four topics along the top

• Motion & displacement: a boy walking round a block with distance and displacement drawn; the five kinds of motion animated; and a round trip where the average speed is not zero but the average velocity is.
• Motion graphs: distance–time and velocity–time graphs for rest, uniform velocity, speeding up and slowing down, with slope and area explained; and a car with both graphs drawn live.
• Equations of motion: v = u + at, s = ut + ½at² and v² = u² + 2as checked against a moving car; and braking distance, which grows with the square of the speed.
• Falling bodies: free fall from a height with Galileo's 1 : 3 : 5 spacing, a ball thrown straight up, and a feather and coin in air and in a vacuum.

Teach and Practice

• Teach shows the equations with your numbers and notes for each view. Practice gives a numerical problem for the current view — Check the answer, Show it on the stage, or ask for a New problem — plus a quick-check quiz.

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).