Cry of Jelicuon
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Interactive Explore

Velocity Vector Stage Planner

Festival context —Set a performer's speed and direction of movement. Watch them cross the stage and see the velocity vector arrow update in real time. Try to hit the target mark within the beat count.

S7FE-IIIa-2Grade 7 · Quarter 3Describe Motion in Terms of Speed and Direction

Velocity Vector Stage Planner

Interactive Simulator
"Set a performer's speed and direction of movement. Watch them cross the stage and see the velocity vector arrow update in real time. Try to hit the target mark within the beat count."

Velocity Stage Planner

4m8mstage-left12m · targetvelocity4 m/s →crossing time3.00 swidth / speed12 m / 4 m·s⁻¹

Same direction, different speed → longer arrow, shorter crossing time. Speed + direction together = velocity.

Anim speed1×

Adjust Variables

Performer speed (m/s)4 m/s
18
Stage width (m)12 m
520

Physics ReadoutsLIVE

Crossing Time3.00 s
time = stageWidth / speed

Community Hub — Cultural Discussion

Reflect & Connect

Why does the choreographer give performers both a speed target AND a direction? What happens to the entire formation if only one performer moves at the right speed but the wrong direction during the war scene?

Discuss with your class or write your response in your science journal.

Performance Task

Clock Your Own Velocity Across the 'Stage'

1Do

Mark a straight 10-meter line on the ground (count heel-to-toe steps at about 0.5 m each, or use a tape measure). Walk it at a steady pace from one end to the other. Then walk the exact same line back the other way at the same pace.

2Measure

Use your phone stopwatch to time each walk. Calculate speed = distance ÷ time for each direction (for example, 10 m ÷ 8 s = 1.25 m/s). Write down the direction of each walk, such as 'toward the gate' and 'away from the gate'.

3Reflect

Your speed was the same both ways, but your velocity was not — because velocity includes direction. This is exactly competency S7FE-IIIa-2. In the Cry of Jelicuon war scene, two performers can move at 1.25 m/s yet still collide if their directions are wrong. Why must the choreographer always state both 'how fast' AND 'which way' for every beat?

Record your measurements and reflections in your science journal.

Module Overview

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