Question 1

What is light?

Accepted Answer

Light is a special kind of energy that lets us see things. It comes from sources like the sun or a light bulb and travels in waves.

Question 2

How does light travel?

Accepted Answer

Light travels in straight lines called rays. It moves super fast, much quicker than anything you can imagine.

Question 3

What are waves in light?

Accepted Answer

Waves in light are like ripples in water. These waves move up and down as light travels, helping carry its energy.

Question 4

Why can we see colors?

Accepted Answer

We see colors because light is made up of many different colors. When light hits something, some colors bounce off, and that's what we see.

Question 5

What is a rainbow?

Accepted Answer

A rainbow is made when light from the sun bends through raindrops, splitting into lots of colors. These colors are red, orange, yellow, green, blue, indigo, and violet.

Question 6

Why is the sky blue?

Accepted Answer

The sky looks blue because sunlight hits air and gets scattered. Blue light scatters more than other colors, making the sky look blue.

Question 7

Why does the sun look yellow?

Accepted Answer

The sun looks yellow because its light has all the colors, but it especially glows with more yellow. As it passes through the air, blue light scatters away, making the sun look yellow.

Question 8

What happens when light hits a mirror?

Accepted Answer

When light hits a mirror, it bounces back. This bouncing helps us see our reflection in mirrors.

Question 9

Why can't we see light beams in the air?

Accepted Answer

We can't see light beams unless they hit something like dust or fog. That's why we only see light when it shines on objects or if it's very dusty or foggy.

Question 10

What are shadows?

Accepted Answer

Shadows are dark spots that happen when something blocks the light. The light can't get through solid things, so it creates a shadow behind them.

Question 11

How can we see in the dark?

Accepted Answer

We need light to see, so in the dark, we can't see well. If we turn on a light, our eyes can see because the light bounces off things and into our eyes.

Question 12

What makes a sunset have such pretty colors?

Accepted Answer

At sunset, the sun's light travels through more air, scattering blue and green away. The sky left behind looks red, orange, and pink.

Question 13

How does light help plants grow?

Accepted Answer

Light helps plants grow by giving them energy. They use light to turn water and air into food through a process called photosynthesis.

Question 14

What is the brightest light we know?

Accepted Answer

The brightest light we know comes from the sun. It's so bright and powerful that it lights up the whole Earth!

Question 15

Can light bend?

Accepted Answer

Yes, light can bend. It bends when it moves from one material to another, like from air into water.

Question 16

What do glasses do to help us see better?

Accepted Answer

Glasses bend the light just right so it focuses on the correct part of our eyes. This lets us see things more clearly.

Question 17

How do rainbows happen in the sky?

Accepted Answer

Rainbows happen when sunlight passes through rain droplets and splits into different colors. This makes the sky look like it has a magical arc of colors.

Question 18

Why do we use lights at night?

Accepted Answer

We use lights at night because the sun isn't shining. Lights help us see things in the dark so we can stay safe and keep doing things we enjoy.

Question 19

What is a prism and how does it work?

Accepted Answer

A prism is a special glass shape that can break light into a rainbow. When light enters the prism, it bends and spreads apart into all its colors.

Question 20

How do cameras use light?

Accepted Answer

Cameras use light to capture pictures. When you take a photo, light from the scene goes through the lens and hits a sensor, creating a picture you can see.

The Physics of Light: Understanding Waves and Colors - 20 FAQs Explained Simply