Modeling Waves, Prop. of Visible Light, Model Light Wave Review

Despite what is portrayed in science fiction movies, if you witnessed a battle in outer space, you would not hear sound. Explain why.

• Sound can travel through the darkness of space.
• Space is filled with gases that carry sound.
• The technology in spaceships amplifies sound waves.
• You would not hear sound in outer space because it is a vacuum, so there are no particles to vibrate.

If you stand on the edge of a canyon and shout, you will hear an echo. That is, some time after you shout, you will hear your shout again coming up from the canyon. Describe what is happening to the sound of your shout to make this happen.

• Your shout will be reflected back to you because your sound waves will bounce off and return.

• The sound travels straight up and disappears.
• The sound is absorbed by the canyon walls.
• The sound waves scatter in all directions.

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NGSS.MS-PS4-2

Music is often recorded in a soundproof room. This room is designed so that sounds from outside do not enter the room. What special features must be considered when choosing the materials that make up the walls of a sound-proof room?

• Music is recorded in a room with a wall where the sound will be absorbed so there is no reflection off of smooth, hard walls.

• Choose materials that enhance sound transmission.
• Incorporate large windows for natural light.
• Use lightweight materials and reflective surfaces.

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NGSS.MS-PS4-2

CER: The Sun constantly undergoes explosions called solar eruptions. When a solar eruption happens, satellites capture images of bright flashes of light called solar flares. Solar eruptions emit more energy than millions of megaton hydrogen bombs. Space is a vacuum and void of any matter.

Write the CLAIM.

• Solar flares are caused by meteor showers.
• We cannot hear solar eruptions on Earth

• Space is filled with various gases and particles.
• Solar eruptions occur only during solar eclipses.

CER: The Sun constantly undergoes explosions called solar eruptions. When a solar eruption happens, satellites capture images of bright flashes of light called solar flares. Solar eruptions emit more energy than millions of megaton hydrogen bombs. Space is a vacuum and void of any matter.

Write the EVIDENCE. Select all that apply.

• sound waves requires a medium to travel through

• space is a vacuum (meaning a lack of air or water) for sound waves to travel

• solar eruptions releases energy in form of radiation which can travel through a vacuum

• Solar eruptions occur only during solar eclipses.

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NGSS.MS-PS3-5

CER: The Sun constantly undergoes explosions called solar eruptions. When a solar eruption happens, satellites capture images of bright flashes of light called solar flares. Solar eruptions emit more energy than millions of megaton hydrogen bombs. Space is a vacuum and void of any matter.

Write the REASONING. Select all that apply.

• Sound is a mechanical wave meaning it relies on the vibration of particles within a medium to transmit energy.

• When solar eruptions occurs it releases a lot of energy, however we cannot hear it because space is a vacuum and does not have particles

• however, electromagnetic radiation released by solar eruptions can travel through space to reach Earth, we recognize this as LIGHT but not SOUND

• solar eruptions occurs every day

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NGSS.MS-PS4-1

what causes the different colors of visible light in the electromagnetic spectrum?

• Different colors are caused by temperature variations.
• The different colors of visible light are caused by variations in wavelength.
• Visible light colors are a result of human perception.
• Colors are determined by the intensity of light.

a laser beam is pointed into a plane mirror using the setup shown in the diagram below. describe how the light would behave if the laser beam entered along line 1

• The laser beam will pass through the mirror without reflecting.
• The laser beam will bend and change direction upon hitting the mirror.
• The laser beam will scatter in multiple directions after hitting the mirror.
• if the laser beam enters along line 1 the light would be reflected out of the mirror along line V

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NGSS.MS-PS4-2

What three things can happen when light strikes an object?

• When light strikes an object it can be reflected, diffusion, and scattering.

• When light strikes an object it can be reflected, absorbed , or transmitted

• When light strikes an object it can be diffused, convection, and radiation.

• When light strikes an object it can be emission, reflection, and distortion.

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NGSS.MS-PS4-2

Four friends were playing in a swimming pool at Kim's house one afternoon in the summer. Becky, who wore glasses at school, was wearing googles. The other girls asked why she had them on. Bonnie said, "They don't work the same way as glasses. Take them off." "

"I know that, but I still feel like I see better with them on," Becky said.

"Let's test it!" chimed in Kim. "My dad is an ophthalmologist, an eye doctor, and has eye charts all over the house, I'll go grab one, and we can take turns holding it underwater."

All four girls took turns reading the eye chart with and without goggles under the water. Their results are below.

Write the CLAIM.

• Wearing goggles improves vision underwater.
• Wearing goggles decreases vision underwater.
• Glasses work better than goggles underwater.
• Goggles are only for swimming, not for vision.

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