Light
Atoms
What do Light Bulbs generate?
Light, Heat
Light is a fundamental type of energy alongside sound and what else?
Heat
What is reflection?
Reflection is the process where light bounces off an object and is sent in another direction.
What kind of energies does fire emmit?
Heat and light energy
If the _________ of light is too high, it can cause disorientation and overwhelm the brain.
What are the 2 types of light bulbs?
Fluorescent, Incandescent
Light is created when this specific thing escapes from an atom.
Energy
What is refraction?
Refraction is when light passes through a material and bends.
What machine turns wind energy into electrical energy?
Wind Turbine
What is the speed of light (km/s)?
The speed of light is around 300,000 km/s
How many times more efficent are flourecent bulbs compared to Incandecent bulbs?
Around 4 times more efficient
In the modern world, we are able to create light by using certain elements to trigger these
Reactions
What process do mirrors use to show images?
They use reflection to show images.
What is the law that states that the farther you get from a single light source, the dimmer the light becomes?
The Inverse-Square Law
How far is a light year (km)?
A light year is around 10,000,000,000,000 km or 10 trillion km
What is the material that is used in filament for Incandescent Light bulbs?
Tungsten
What happens to energy when it enters an atom. (Use specific term)
It is absorbed
What kind of shape does light travel when reflecting?
Light travels in straight lines while reflecting.
What devices use light energy from the sun to create electrical energy?
Solar Panels
How many wavelengths of light are there?
Infinite number of wavelengths
Explain how both Incandescent bulbs and Fluorescent bulbs work.
Incandescent bulbs channel energy through a tungsten filament to create light. Fluorescent bulbs energize atoms of gas in the bulb, creating light.
What 2 things does light carry?
Energy and Information
What does clear shaped glass do?
Clear shaped glass can change the direction and appearance of light.
What is the exact measurement of light that is given from a single square meter of area exposed to the sun?
500 Watts