The Sun & You
Which country has the highest rate of skin cancer?
Australia
Based on the simulations you did, what happened to the aluminum foil when sunlight hit it?
No change
What is it called when light waves bounce off an object?
Reflection
What type of light has the highest compression (amplitude)?
Gamma Rays
What is the highest point of a light wave called?
Crest
What does melanin do for the body?
It is a natural protection mechanism, it prevents cell and DNA damage from the sun.
Based on the simulations you did, what happened to the solar panel when sunlight hit it?
it absorbed the light to created warmth & energy
What is it called when light hits a surface and is converted into energy?
Absorption
What type of light is used in a very common kitchen appliance used to reheat food?
Microwaves
What is the lowest point of a light wave called?
Trough
What type of light from the sun causes damage to your skin?
Ultraviolet light
Based on the simulations you did, what happened when light hit glass?
The light passed through the glass.
Plants use a specific kind of absorption to convert light into energy. What is it called?
Photosynthesis
True or false: An example of light diffraction is light spreading as it's passing through a crack in the doorway.
True
What is the distance between two crests or two troughs of a light wave called?
Wavelength
A tan is the body's natural defense to protect itself in future encounters with the sun. Depending on your genetic expression, you may not tan, but get a sunburn.
Human eyes have a lens. We would not be able to see without this lens, because it _______ light into the retina.
Refracts
What is it called when light bends as it passes from one medium to another? (ex: straw in water)
Refraction
Why could it be dangerous to have X-rays done frequently?
Because it's light waves have high energy and can cause damage to cells and DNA.
What does the amplitude of a light wave represent?
It represents the height of the wave, which indicates the energy or intensity. The higher the amplitude, the brighter the light.
Besides a lack of melanin, what were the other factors that contributed to Australia having high rates of skin cancer?
ozone, closer to the equator
Skyscrapers are made with a large amount of glass so that natural light can shine throughout the building. Does glass offer protection from the sunlight?
Yes, glass allows sunlight to enter the building while blocking harmful UV rays.
What is it called when light spreads out after it passes through gaps or around edges of objects? (ex: solar eclipse)
Diffraction
What type of light is used in remote controls and fiber optic cables?
Infrared Light
What is the name of the area where the light wave is closest together?
Compression (high intensity or high amplitude)