Student Data Showcase by Kelly Pearson

Random Q: How do these tools vary in usefulness to someone who is colorblind?

2016710_3 — 2024-03-26 13:10:33 UTC

Question:

2024-03-26 13:13:43 UTC

What is the difference in the diffraction data when different light sources are used?

Data

2024-03-26 13:17:42 UTC

Natural Light: full spectrum of colors with neat breaks (rainbow that fades)

LED:

white: less gaps between the colors

red: hardly any blue or orange, very bright

green: no blue light visible

blue: blue and purple more intense, hardly any orange

fluorescence light: clearly see distinctions with breaks between the colors

phone flashlight: similar to the natural light

The Spectroscope displayed multiple prisms when viewing the caged hanging light. Was that because of how bright that bulb was or did the cage create breaks in the prism.

2024-03-26 13:18:09 UTC

2024-03-26 13:18:29 UTC

As light decreases how does how does our perception of visible light change between green, blue, and red colors?

How does surface material impact temperature when using the infrared LaserPro thermometer?

david_thompson16 — 2024-03-26 13:18:41 UTC

We then added "color" to our data collection.

How does the color of an object affect it's temperature? Can we measure other type of energy?

2024-03-26 13:19:04 UTC

2024-03-26 13:20:09 UTC

Tools -

Red, green, blue bocks

Dark room

go-direct light sensor

controlled light source (light to dark)

Questions:

2024-03-26 13:21:45 UTC

Why do different sources of light give off different amounts of heat?

What is different about how these bulbs are made? How does this impact the safety of different light sources? What is the economical factor? Like it's cheaper to power LED lights than incandescent bulbs, is that because one produces more of a variety of energy / wavelengths?

Data and Conclusions

2024-03-26 13:22:11 UTC

We tested the IR readings of various light sources.

LED (white)- 73.4 IR

LED- fluctuates depending on the color. Red and pink give off higher IR readings

Laptop Screen - 79.1

Phone screen- 88.5

Laptop charger 121.1

Shield 83.1 (bulb is 265.1 and will keep warming up)

Glass on window is 69.8 Metal frame 55

Match (flame)- IR

Some produce heat, some don't!

Why do fluorescent lights give off more definitive spectral lines than the led light?

2024-03-26 13:23:30 UTC

Intensity of colored light

2024-03-26 13:24:33 UTC

As the intensity of colored light changes, does the spectroscope change?

Experiment:

The green light on LED bulb was turned on and the spectroscope showed blue green, and red light on the wall of the spectroscope.

Data: The intensity of the color of the light bulb changed. The spectroscope bands of color changed intensity and the band of each color changed slightly.

2024-03-26 13:37:19 UTC

We used the sensor to graph different colored blocks and lights.

"What we noticed wasn't what we expected...."

2024-03-26 13:37:22 UTC

We took a match, UV light and overhead-florescent light and measured temperature as well as used a spectroscope to make observations. It opened us to ask a lot of questions. Each light source gave a full spectrum, from what we could tell. UV Temp: 373C, Match: 50C, FL: 115C.

We tried to use Vernier Go Direct Light and Color sensor to gather measurements from four colored cubes (Y, G, B, R) and we could get luminosity but couldn't figure out how to change the data that was viewed.

It lead us to a conversation about Thermal Radiation and Infrared Radiation.

Is there a difference between thermal radiation and infrared radiation? | Science Questions with Surprising Answers (wtamu.edu )

2024-03-26 13:37:55 UTC

The surface material of a substance does impact the temperature (IR).

The IR Temp of the silver coffee pot (hot) had a reading of 82.2, while the black top of the same coffee pot had a reading of 146.7, and the coffee itself had a reading of 143.1.

The coffee itself, in a cup had the same reading of 143.1. The blue part of the cup containing the coffee had a reading of 84.6, and the white part of the cup containing the hot coffee had a reading of 131.5.

2024-03-26 13:38:15 UTC

When we used the sensor pointed to the different colored blocks, the distance we held the blocks away greatly changed the intensity.

As we held blocks farther away from the sensor each wavelength intensity increased. Why did this happen?