Q&A Quest: Waves, Sound, and Light by Andrew Cox

Why does a red object look black when illuminated by blue light?

andrew018 — 2014-11-05 22:22:15 UTC

How do we know the temperature of distant stars?

andrew018 — 2014-11-05 22:25:31 UTC

What are the causes and treatments of a condition known as myopia?

andrew018 — 2014-11-05 22:26:11 UTC

Use a diagram or two to support your answer!

Why do images look upside down or magnified when viewed though a convex lens?

andrew018 — 2014-11-05 22:27:01 UTC

Use a diagram or two to support your answer!

What is going on with the straws in this picture?

andrew018 — 2014-11-06 16:14:28 UTC

How does the ear hear different frequencies of sound?

andrew018 — 2014-11-06 17:47:19 UTC

Why does a sound coming toward you increase in pitch and a sound moving away from you decrease in pitch?

andrew018 — 2014-11-06 17:56:08 UTC

How does a telescope use mirrors and lenses to allow us to see distant objects?

andrew018 — 2014-11-06 18:04:03 UTC

Use a diagram or two to support your answer!

What can we learn about the Universe by observing it using radio wave, microwaves, infrared, UV, X-rays, and/or gamma rays?

andrew018 — 2014-11-06 18:23:46 UTC

How does high-energy radiation affect DNA?

andrew018 — 2014-11-06 18:29:40 UTC

As we look out into space, what wavelengths of light can we observe from the surface of the Earth? What happens to all the other wavelengths?

andrew018 — 2014-11-06 18:43:04 UTC

How do noise-cancelling headphones cancel out noise?

andrew018 — 2014-11-06 21:21:21 UTC

Use a diagram or two to support your answer!

How does a prism separate white light into the colors of the rainbow?

andrew018 — 2014-11-06 21:37:31 UTC

Evaluation Rubric

andrew018 — 2014-11-07 17:05:04 UTC

How do fiber optic cables work?

andrew018 — 2014-11-09 15:04:33 UTC

Use a diagram or two to support your answer!

What can we conclude about light from the results of Thomas Young's double slit experiment? What evidence supports this conclusion?

andrew018 — 2014-11-11 13:04:02 UTC

If you shine a rainbow of light into a prism what color(s) of light will come out of the other side? WHY?

andrew018 — 2014-11-11 15:55:27 UTC

How is color produced in a plasma TV panel?

2014-11-11 16:29:19 UTC

Steven Shine

2014-11-11 16:36:53 UTC

What are gamma rays made out of and where do they come from?

How do cells in your eyes cause your brain to percieve color?

2014-11-11 16:56:43 UTC

What is "Cosmic Background Radiation" and what does it tell us about the Universe

andrew018 — 2014-11-11 17:44:28 UTC

What causes color blindness?

andrew018 — 2014-11-11 19:13:21 UTC

Be sure to include the terms wavelength and/or frequency in your answer!

How do remote controls for TVs work?

andrew018 — 2014-11-11 19:34:48 UTC

How do contact lenses or glasses work to correct vision?

2014-11-11 19:41:41 UTC

Use a diagram to support your answer.

Diana Rojo- Jewell

2014-11-11 20:41:36 UTC

How do the different types of contact lenses or glasses lenses treat different eye problems?

Suraj Modi

2014-11-11 20:52:03 UTC

How can radio waves be used to treat cancer?

How does ultrasound work and what is it used for?

andrew018 — 2014-11-11 21:38:14 UTC

What is infrasound and what effect can it have on people and animals?

andrew018 — 2014-11-11 21:42:02 UTC

What is the speed of sound? What would it sound like to go faster than the speed of sound?

andrew018 — 2014-11-12 12:52:17 UTC

Why is there no sound in space?

andrew018 — 2014-11-12 12:57:20 UTC

Why do some objects appear shiny and others dull?

andrew018 — 2014-11-12 13:06:43 UTC

Include a diagram of light reflecting off of a shiny and a dull surface.

Why is glass transparent?

andrew018 — 2014-11-12 13:10:31 UTC

There's a cool (and short) Podcast

Sam T.

2014-11-12 15:43:20 UTC

Is it possible to stop the motion of light in a vacuum? Why or why not?

Jonah Bridger

2014-11-12 15:46:29 UTC

How do we know the size/age of the observable Universe?

Jonah Bridger

2014-11-12 15:53:58 UTC

Does color exist in pure darkness? Why or why not?

What causes transparent media to refract light waves as shown in the picture?

2014-11-12 16:31:03 UTC

myles connelly

2014-11-12 17:12:34 UTC

How do satellites transmit signals to our TVs?

Why can some sounds travel longer distances than other sounds?

2014-11-12 19:19:15 UTC

What is echolocation and what can it be used for?

2014-11-12 19:22:02 UTC

Kendyl Lowery

Julia Medrea

2014-11-12 20:32:29 UTC

What is the longest/shortest possible wavelength of light?

Amy Kim

2014-11-12 20:44:04 UTC

Is light made of particles or waves? How do we know?

CeDaniel

2014-11-12 20:44:05 UTC

What is the function of cartenoids in living organisms? (connect to waves!)

Suraj Modi

2014-11-12 20:55:50 UTC

How do dyes and pigments affect the colors of light we see?

Why can radio waves pass through walls but visible light cannot?

andrew018 — 2014-11-13 13:04:23 UTC

Steve Gonzalez-Gordillo

How do refracting and reflecting telescopes work

2014-11-13 15:44:17 UTC

Use a diagram (with labels) to support your answer!

What is the Doppler Effect?

2014-11-13 16:36:13 UTC

Use a diagram to support your answer

How do solar panels absorb and convert sunlight into energy?

2014-11-13 16:38:07 UTC

Steven Shine

lila youngblood

2014-11-13 16:39:22 UTC

What kind of waves are transmitted from Wifi? How do they work?

How are different wavelengths of light used in photosynthesis?

2014-11-13 16:39:55 UTC

Akash Sinha

2014-11-13 18:53:56 UTC

How does SONAR work?

Lee Despres

2014-11-13 19:01:59 UTC

How does RADAR work? Is it like SONAR.

Why does sound travel at different speeds in different media?

2014-11-13 19:09:10 UTC

SAMUEL

2014-11-13 19:13:33 UTC

What will take longer for an echo to return ,Shallow water or deep? Why?

Akash Sinha

2014-11-13 19:15:57 UTC

how does an X-ray work?

Ansley

2014-11-13 19:21:05 UTC

How do microwave ovens prevent light waves from leaking into your house?

Laura Spivey

2014-11-13 19:22:03 UTC

what happens to your eyes when you look directly at the sun? Are the affects temporary or permanent?

Jacob Ervin

2014-11-13 19:23:39 UTC

How does a projector display images?

Why can radar NOT detect a submarine?

2014-11-13 19:24:46 UTC

Scientists have created a radar that can detect a bird 100 km away. But in water, no radar can detect a 10,000 ton submarine only 1 km away. WHY?

Jacob Ervin

2014-11-13 19:29:16 UTC

How can astrophysicists tell whether a star is receding or approaching Earth?

Jay: How is a rainbow formed?

2014-11-13 19:29:36 UTC

Explain and draw at least one diagram that helps you understand the concept!

Lee D

2014-11-13 19:33:04 UTC

Can light travel farther in space than on Earth? Why?

Katherine Fourie

2014-11-13 19:34:04 UTC

How does ultraviolet light purify water?