Photo-gates

Definition

Photo-gates are devices that use infrared light beams to detect the presence or absence of an object passing through them. They are commonly used in physics experiments to measure time intervals and calculate velocities.

Related terms

Stopwatch:

A handheld device used to measure time intervals with precision.

Velocity:

The rate at which an object changes its position over time.

Acceleration:

The rate at which an object's velocity changes over time.