Light
Waves
Light Source
Random
Skin Cancer
100
What is absorption?
What is a material takes in energy.
100
The height of a wave is called?
What is an amplitude
100
The sun only emits one type of light? True or False
False, the sun emits many different types of light.
100
Bob saw a special type of plastic that would melt and become a liquid when it was placed in the sun, but it would not melt when placed under a desk lamp. Why does light from the sun melt the plastic when light from the desk lamp does not?
What is (A) Because the plastic can take in energy from the light from the sun but not from the light from the lamp
100
Which rays from the sun are damaging to the skin?
What is Ultraviolet Light
200
What is reflection?
What is when light bounces off a surface.
200
How does wavelength affect color?
What is different wavelengths produce different colors of light.
200
A Dentist uses a soft, clay-like material to make a filling for a cavity. The filling stays soft under the light of the dentist’s lamp, but it hardens when the dentist shines an ultraviolet flashlight on it. Why does light from the ultraviolet flashlight harden the filling when light from the lamp does not?
What is (B) Because the filling material can take in energy from ultraviolet light, but not from the light from the lamp.
200
Ian wonders if sunscreen lotion will dry out if it is exposed to light. The table below shows what happens when different types of light hit the sunscreen.
What is (d) Neither type of light is likely to dry out the sunscreen because the sunscreen does not take in energy from either the ultraviolet light or the X-ray light.
200
What causes people to have different skin tones?
What is the amount of melanin in the skin
300
What is transmission?
What is when light passes through a material.
300
A repeating pattern of motion that transfers energy is called?
What is a wave
300
Maya wonders which types of light could heat up a sheet of aluminum. The table below shows what happens when different types of light hit the aluminum.
Based on this information, which type of light is more likely to heat up the sheet of aluminum?
Neither type of light is likely to heat up the aluminum because the aluminum does not take in energy from either the X-ray light or the ultraviolet light.
300
A rug sits in a sunny place on the floor for a long time. Kiara thinks that light from the sun can cause the rug’s color to fade over time. Can light from the sun cause the rug’s color to fade?
What is (c) Yes. The rug can take in energy from the light, causing the rug’s color to fade.
300
Why is a person with less melanin at a higher risk for skin cancer?
What is a person with less melanin is at higher risk because their skin absorbs less UV protection, so more harmful UV light can damage their skin cells and lead to skin cancer.
400
What is the visible light?
What is The range of light wavelengths humans can see such colors in the rainbow Red, Orange, Yellow, Green, Blue, Indigo, Violet
400
These graphs show the wavelength and amplitude of light coming from three lasers. Could any of these lasers be giving off a different type of light? yes or no and why?
What is Yes. Laser 2 could be giving off a different type of light because Laser 2 has a different wavelength than Lasers 1 and 3.
400
Shanika has some red marbles. She notices that sometimes the marbles get warm after being exposed to light. She wonders what type of light can cause the marbles to get warm. The table below shows what happens when different types of light hit the marbles.
What is the infrared light can cause the marbles to get warm.
400
Your friend says that he heard about some rocks that would glow when they were put under a certain kind of light. Can light cause rocks to glow?
What is (D) Yes. Rocks can take in energy from the light, causing them to glow.
400
How or 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
500
What is amplitude?
What is the height of a wave, related to brightness for light waves.
500
These graphs show the wavelength and amplitude of light coming from three lasers. Could any of these lasers be giving off different types of light? Yes or No, Why?
What is Yes. Laser 3 is giving off a different type of light because Laser 3 has a different wavelength than Lasers 1 and 2.
500
Jayden says that the dentist can shine a special light on his teeth that will make his teeth become whiter. Can light change Jayden’s teeth?
What is (A) Yes. Jayden’s teeth can take in energy from the light, causing them to become whiter.
500
How does light interact with material?
What is it transmit, reflect and absorb
500
How does ozone protect you from skin cancer?
Ozone acts like a barrier that absorbs the UV light before it damages your DNA.