Waves EOG review

Many movies have shown scenes where explosions can be seen and heard in outer space. Which statement BEST describes why these scenes are not correct?

• Sound waves are unable to travel in outer space.

• Light waves travel too slowly to be seen in outer space.

• Light and sound travel at different speeds in outer space.

• Light and sound travel in different directions in outer space.

A student is drawing a diagram of a light ray as it enters a pane of glass. Which of these shows the correctly completed diagram?

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Tags

NGSS.MS-PS4-2

A machine converts sound into a transverse wave as shown. If the sound becomes louder, what would the new sound wave look like?

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Tags

NGSS.MS-PS4-1

Student 1 claims that energy can only be transferred by particles inside a medium. Student 2 does not agree with Student 1. Which statement should Student 2 use as evidence that Student 1 is INCORRECT?

• Light energy can travel without a medium.

• Sound energy can travel without a medium.

• All types of energy can travel without a medium.

• Mechanical energy can travel without a medium.

Mechanical (sound) waves are unable to travel through a vacuum, such as through space, but radio waves are transmitted to Earth from satellites. How is this possible?

• Radio waves are electromagnetic waves.

• Satellites are located within our atmosphere.

• Radio waves are very high energy mechanical waves.

• Radio waves are changed to gamma rays for transmission.

Tags

NGSS.HS-PS4-3

Identify the distance labeled from A to B. Explain what could be done to the note played on an instrument to change that distance.

• From A to B is known as the wavelength and changing the pitch of the note will change its length.

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  From A to B is known as the amplitude and changing the loudness of the note will change its length.

• From A to B is known as the wavelength and changing the amplitude of the note will change its length.

• From A to B is known as the wave height and changing the amplitude of the note will change its length.

Tags

NGSS.MS-PS4-1

The sun's energy comes in many different forms of electromagnetic radiation, as shown. Which form of solar radiation has a longer wavelength than white light?

• Infrared

• Gamma rays

• Ultraviolet

• Visible light

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

All waves on the electromagnetic spectrum travel at the same speed in a vacuum. The speed of these waves in a vacuum is 3x108 m/s. As the wavelength of a wave doubles, hypothesize how the speed and frequency of the wave change.

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  The frequency remains the same and the speed is doubled.

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  The speed remains the same and the frequency is doubled.

• The frequency remains the same and the speed is halved.

• The speed remains the same and the frequency is halved.

Tags

NGSS.HS-PS4-1

Some electromagnetic radiation is powerful enough to enter cells and cause cause DNA damage. Since DNA is the molecule of heredity for cells, damage to this molecule can lead to mutations and cancer. The smaller the wavelength, the more powerful the radiation.Additionally, only waves with small wavelengths can enter structures as small as cells. According to the diagram, which type of electromagnetic radiation would not be able to enter cells and damage their DNA?

• X-rays

• Gamma rays

• Microwaves

• Ultraviolet rays

Tags

NGSS.HS-PS4-4

When white light passes through a prism, the prism separates the light into different colors. What are all these colors together called?

• energy

• intensity

• 
  spectrum

• wavelengths

Tags

NGSS.MS-PS4-2