Properties of Light
What is light?
Light is a form of energy that travels in straight lines and can be seen by our eyes.
What is a mirror?
A mirror is a smooth surface that reflects light back to us.
What is a lens?
A lens is a piece of glass or other transparent material that bends light.
What is a black shirt?
A black shirt absorbs most of the light that hits it, making it appear black.
Why is it hot in sunlight?
The sunlight is absorbed by our clothes and skin, making us feel hot.
How does light travel?
Light travels in straight lines until it hits an object or travels through a new medium.
What happens to light when it hits a smooth surface?
Light reflects, or bounces off, allowing us to see our reflection.
How does light change direction?
Light refracts, or bends, when it passes from one material to another
What does it mean to absorb light?
To absorb light means that the material takes in the light and does not reflect or transmit it.
How do sunglasses work?
Sunglasses absorb some of the sun's rays to protect our eyes.
What are light rays?
Light rays are lines that represent the direction and path that light travels.
What is specular reflection?
Specular reflection occurs when light reflects off smooth surfaces in a predictable direction.
What is the effect of refraction in a pool?
Refraction makes objects in a pool look shallower than they really are.
Why do things get warm when they absorb light?
When objects absorb light, they convert the light energy into heat.
How do periscopes work?
Periscopes use mirrors to reflect light and allow us to see over or around objects.
Why can we see shadows?
Shadows occur because light travels in straight lines and is blocked by objects, casting a shadow.
How does reflection help animals?
Some animals, like cats, use reflective eyes to see better at night.
Why do objects look bent in water?
Objects look bent due to the refraction of light as it moves from water to air.
What materials are good at absorbing light?
Dark, matte materials are good at absorbing light.
How do traffic lights work?
Traffic lights use lenses to refract light, directing it to be visible from different angles.
What causes a laser beam to be visible?
A laser beam is visible when light is scattered by particles along its path.
How is reflection used in solar panels?
Reflection in solar panels helps to focus and utilize more sunlight for energy.
What is the principle of fiber optics?
Fiber optics work by using the refraction of light to transmit data over long distances.
How does color affect light absorption?
Dark colors absorb more light, and light colors reflect more light.
How do greenhouse glasses work?
Greenhouse glass lets in light and traps heat, warming up the