What is light?
1 Answer
Light is a type of energy that travels in waves and allows us to see the world around us. It’s a form of energy called electromagnetic radiation.
Here’s what you need to know:
1. **How Light Travels**: Light moves very fast—about 186,000 miles per second (300,000 kilometers per second). It doesn’t need anything to travel through, so it can move through empty space (like sunlight traveling to Earth).
2. **Sources of Light**: The Sun is the biggest natural source of light for Earth. We also create light using things like light bulbs, candles, and LEDs.
3. **How We See**: When light hits an object, it bounces off (reflects) and enters our eyes. That’s how we see objects. If there’s no light, we can’t see anything because there’s no light reflecting into our eyes.
4. **Colors of Light**: White light (like sunlight) is actually made up of all the colors of the rainbow. You can see this when light passes through a prism or creates a rainbow.
In short, light is energy that lets us see and understand the world around us. It’s essential for life on Earth!
Here’s what you need to know:
1. **How Light Travels**: Light moves very fast—about 186,000 miles per second (300,000 kilometers per second). It doesn’t need anything to travel through, so it can move through empty space (like sunlight traveling to Earth).
2. **Sources of Light**: The Sun is the biggest natural source of light for Earth. We also create light using things like light bulbs, candles, and LEDs.
3. **How We See**: When light hits an object, it bounces off (reflects) and enters our eyes. That’s how we see objects. If there’s no light, we can’t see anything because there’s no light reflecting into our eyes.
4. **Colors of Light**: White light (like sunlight) is actually made up of all the colors of the rainbow. You can see this when light passes through a prism or creates a rainbow.
In short, light is energy that lets us see and understand the world around us. It’s essential for life on Earth!