Front

Receiver

Back

A device or part of the body that gets or detects something, like a sound wave or signal. For sound, it's often your ears.

Front

Detector

Back

A tool or instrument that senses or finds something. In sound, a detector might be a microphone that picks up sound waves.

Front

Vibration

Back

A rapid back-and-forth movement. When something vibrates, like a guitar string or your vocal cords, it creates sound.

Front

Deform

Back

To change shape, especially by pressure or force. A sound wave can deform a surface if it's loud enough.

Front

Collisions

Back

When two things bump or crash into each other. For sound, collisions can happen when particles in the air bump into each other, making the sound.

Front

Energy

Back

The ability to do work or cause change. Sound waves carry energy through the air.

Front

Force

Back

A push or pull on an object. When you clap your hands, you apply force, which makes sound.

Front

Loudness

Back

How strong or soft a sound is. It depends on the sound wave’s amplitude (height). A louder sound has bigger waves.

Front

Reflect

Back

To bounce off. When sound hits a surface, it can reflect back, like an echo.

Front

Laser

Back

A special light that travels in a very narrow beam. It can also be used to measure distances, and sometimes to detect sound.