Waves, Energy, and Information

A diagram of the electromagnetic spectrum is shown. Sunscreen is a lotion used to protect skin from exposure to the Sun. This sunscreen protects a person's skin from wavelengths that are . . .

• longer than radio waves but shorter than x-rays

• longer than X-rays but shorter than infrared waves

• longer than microwaves but shorter than infrared waves

• longer than visible light waves but shorter than radio waves

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

A sound wave is produced in a metal cylinder by striking one end. Which of the following occurs as the wave travels along the cylinder?

• Its amplitude increases.

• Its frequency increases.

• It transfers matter.

• It transfers energy.

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

A stretched spring attached to two fixed points is compressed on one end and released, as shown in the diagram. The resulting wave travels back and forth between the two fixed ends of the spring medium until it comes to a stop. This mechanical wave is an example of a . . .

• transverse wave.

• longitudinal wave.

• electromagnetic wave.

• refracted wave.

Tags

NGSS.MS-PS4-1

One end of a horizontal string is caused to oscillate vertically while the other end is attached to a fixed object the Waved the travels along the string is an example of . . .

• an electromagnetic wave.

• a transverse waves.

• a microwave.

• a longitudinal wave.

Tags

NGSS.HS-PS4-1

Astronauts on the Moon would not be able to hear a landslide because . . .

• the lunar dust deadens sound.

• intensive sunlight destroys sound waves.

• the magnetic field of the moon is to weak to carry sound.

• air molecules on the Moon are too for apart to carry sound.

Sound waves cannot carry energy through . . .

• water.

• air.

• a mirror.

• a vacuum.

Tags

NGSS.MS-PS4-2

Objects appear different in size and shape in a container of water due to . . .

• interference of the water and lightwaves.

• refraction of the light waves.

• polarization of the light waves.

• diffraction of the lightwaves.

Tags

NGSS.MS-PS4-2

An engineer in a moving train blows the train's horn. The train is moving away from a person standing on the ground. Compared to the frequency of the sound that the engineer hears, the person standing on the ground here's a sound with . . .

• the same wavelength.

• more variation in tone.

• greater amplitude.

• a lower frequency.

Tags

NGSS.HS-PS4-1

The students wanted to reflect a laser light off some flat mirrors in the auditorium so that it hits somewhere on the screen. Which of the following diagrams best showsHow the mirrors could be placed in the path that the light will take?

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Tags

NGSS.MS-PS4-2

And oscilloscope is an instrument that can be used to show the wave characteristics of sound. The students used an oscilloscope to display the sound produced when the band's singer sang and note. The display on the oscilloscope is shown in the diagram. Which of the following would most likely be shown by the oscilloscope if a note with a higher pitch than the one shown above were sung?

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Tags

NGSS.MS-PS4-1