Yellow flowers look yellow because they reflect this type of light.
yellow
These type of waves can travel through empty space.
Light waves.
The sun emits only one type of light.
True or False
False, the sun emits many different types of light.
Can light from the sun cause nail polish to change color?
A. No. Light is a physical thing so it can't change physical things like nail polish.
B. Yes. Light from the sun can pull energy out of the nail polish.
C. Yes. Light carries energy and the nail polish can take in energy from the light.
D. No. Light can only change things by warming them up.
C. Yes. Light carries energy and the nail polish can take in energy from the light.
Which rays from the sun are damaging to the skin?
Ultraviolet rays (UV rays).
What color do you see when all colors of the rainbow reflect?
White
The height of the wave is called the _______.
amplitude
Are any of these 3 lasers a different type of light from the other two?
A. Yes, laser 2.
B. Yes, laser 3.
C. Yes, all 3 lasers are different.
D. No, they are all the same
A. Laser 2 has a different wavelength.
Santiago’s teacher showed him a kind of cloth that changes color if it is placed out in the sun. It does not change color if it is placed under a desk lamp. Why?
A. Because light from the sun carries colored molecules, and light from the desk lamp does not.
B. Because light from the sun pulls energy out of the cloth, and light from the desk lamp does not.
C. Because the sun gives off a type of light that carries energy, and light from the desk lamp does not.
D. Because the cloth can take in energy from the light from the sun but not from the light from the desk lamp.
D. Because the cloth can take in energy from the light from the sun but not from the light from the desk lamp.
What causes people have different skin tones?
The amount of melanin in your skin.
What does a white object do to visible colored light?
reflect
The wavelength of light determines its _______.
type
Which one of these waves has the highest amplitude and how can you tell?
Wave/laser 2. You can tell because the height from the peak of the wave to the trough of the wave is higher on wave 2.
Which type of light can heat up aluminum according to this table?
Neither
What leads to less UV rays in Brazil than Australia?
Ozone
What does a black object do to visible colored light?
Absorbs
The amplitude of a wave determines its _______.
intensity or strength
If you scream in outer space, why can no one hear you?
Outer Space does not have the medium that sound waves require to travel through.
Your friend says that there is a kind of glue that only dries when it is exposed to a special type of light. Can light cause glue to dry?
A. No. Light can only change things by warming them up, so it cannot cause glue to dry.
B. Yes. The glue can take in energy from the light, causing it to dry.
C. Yes. Light can pull energy out of the glue, causing it to dry.
D. No. Light is not a physical thing, so it cannot change physical things like glue.
B. Yes. The glue can take in energy from the light, causing it to dry.
How/why do people develop skin cancer?
When people are exposed to excess amounts of sunlight the UV rays can damage their skin & the genetic material in your cells
All visible light goes through a clear object. This is called _______.
transmit or transmission
The distance between two crests on one wave is called ________.
Wavelength.
Why does sunscreen help prevent against sun damage?
Sunscreen either absorbs UV light or reflects UV light, preventing the energy from the light from reaching our skin cells and damaging genetic material.
List all of the types of light the sun emits.
Gamma rays, X-rays, Ultraviolet, visible (the colors), infrared, microwave, radio waves.
How does melanin help protect you from skin cancer?
Melanin acts like a barrier that absorbs the UV light before it damages your DNA.