Motion Sensor
Definition
A motion sensor is a device that detects movement or changes in position by emitting and receiving signals such as ultrasound or infrared waves. In physics experiments, motion sensors are often used to collect data on the position, velocity, and acceleration of objects.
Analogy
Think of a motion sensor like a security camera that can track your movements. It detects any change in your position within its range and records it. Similarly, a motion sensor in physics can detect even tiny movements of objects and provide valuable data for analysis.
Related terms
Position-Time Graph: A graph that shows how an object's position changes over time.
Speed: The distance traveled by an object per unit of time.
Force: A push or pull on an object that causes it to accelerate or deform.
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