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Drag a channel onto a role. Calibration and roles are saved per experiment.
GATE A
drop channel
GATE B
drop channel
Record
0 events captured
PHOTOGATE — GATE A
VELOCITY – TIME
#
t (s)
Δt (ms)
v (m/s)
Picket-Fence Free Fall
Times the equally-spaced fence edges through one photogate. Each interval gives a velocity; the slope of v–t is g.
0.060
-0.060
measured g
— m/s²
± —
need ≥ 3 edges
PHOTOGATE — PENDULUM
AMPLITUDE / SPEED DECAY
Pass
t (s)
½T Δt (ms)
Period (s)
Pendulum / SHM Period
One photogate at the lowest point of the swing. The bob passes twice per period; the period is timed across alternate passes (cancels flag-width bias). g = 4π²L / T². Pulse width tracks speed at the bottom → the damping envelope.
0.060
-0.060
period T
— s
± —
measured g
— m/s²
± —
need ≥ 3 passes
PHOTOGATE — ROTATION MARKS
ANGULAR VELOCITY ω – TIME
Mark
t (s)
Δt (ms)
ω (rad/s)
Rotational Motion
Counts evenly-spaced marks past one photogate. Each interval gives ω = (2π/N)/Δt; the slope of ω–t is the spin-down α. Moment of inertia uses the chosen shape: I = k·M·r².