DIA 2 Review

In the electromagnetic spectrum, which of the following is true of waves with long wavelengths? (SC.7.P.10.1)

• They have high frequencies.

• They have low frequencies.

• They have moderate frequencies.

• They have inconsistent frequencies.

What part of the electromagnetic spectrum can be seen by humans? (SC.7.P.10.1)

• Visible Light

• Microwaves

• Ultraviolet Waves

• Infrared Rays

All of the waves listed below are a part of the electromagnetic spectrum except (SC.8.E.5.11)

• Sound Waves

• X Rays

• gamma rays

• light waves

Which wave has a higher frequency? (SC.8.E.5.11)

• Wave N

• Wave O

• The waves have the same frequency.

A diffraction grating can be used to separate white light. When white light is separated by a diffraction grating, it is separated into __________.

• various colors of the visible spectrum

• violet light

• several different speeds of lights

• red, green, and blue light only

Tags

NGSS.HS-PS4-3

Use the image to answer the following question(s).

Light exits the prism in the diagram above and separates into different colors of the visible spectrum. These colors are different because they have different __________.

• densities

• reflections by the prism

• mixtures of white light

• wavelengths

Kim and her brother Kenny went for a swim while at the beach. While in the water, they saw a man jet skiing off in the distance. When Kim and Kenny were underwater searching for seashells, the sound of the Jet Ski seemed remarkably closer. What explanation describes why the Jet Ski seemed closer underwater? (SC.7.P.10.3)

• The Jet Ski moved closer to Kim and Kenny.

• Kim and Kenny’s hearing was better underwater.

• The frequency of the sound waves increased underwater.

• Sound waves travel faster through liquids than through gases.

Tags

NGSS.MS-PS4-2

Marty and Jonas are spending the week at the beach. The ultraviolet rays on their skin are electromagnetic waves, and the ocean waves in which they swim are mechanical waves. What is the main difference between a mechanical wave and an electromagnetic wave? (SC.7.P.10.3)

• Electromagnetic waves transfer matter, and mechanical waves do not.

• A. Mechanical waves transfer energy, and electromagnetic waves do not.

• Electromagnetic waves have more energy than mechanical waves.

• Mechanical waves require a medium, and electromagnetic waves do not.

In which of the following mediums would mechanical waves be most likely to travel fastest? (SC.7.P.10.3)

• a block of wood

• liquid alcohol

• helium gas

• they would travel the same speed in all these

Predict what would happen to the speed of a mechanical wave if it moved from a liquid to a solid. (SC.7.P.10.3)

• It would slow down

• It would speed up

• The speed would not change

• Waves cannot travel through a solid

Tags

NGSS.MS-PS4-2