Light and sound are forms of energy that travel in waves. They are both important in our everyday lives and have many interesting properties and characteristics.

Light

Light is a form of electromagnetic radiation that is visible to the human eye. It travels in straight lines and can be reflected, refracted, and absorbed. Light can also be produced by natural sources, such as the sun, or artificial sources, such as light bulbs and flashlights. The speed of light is about 300,000 kilometers per second.

Sound

Sound is a form of energy that is produced by vibrations. These vibrations create waves in the air, which travel to our ears and are interpreted as sound. Sound waves can travel through solids, liquids, and gases, but they travel fastest through solids. The speed of sound is about 343 meters per second in air.

Key Concepts

Light and sound are forms of energy that travel in waves.
Light is a form of electromagnetic radiation that is visible to the human eye.
Sound is a form of energy produced by vibrations, and it travels as waves through the air.
Light travels much faster than sound.
Both light and sound can be reflected, refracted, and absorbed.