Chapter 4 Quiz: Sound and Light Waves

Kana shines a light onto paper, as shown in the figure below. If the paper is yellow, what is happening to the light? hitting the paper?

• All the colors are being reflected which is why you can see yellow
• You only see yellow because the other colors besides yellow are being reflected
• All the colors except yellow are being absorbed and yellow is being reflected
• You see yellow because you probably are color blind please go see a doctor
• None of the above

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NGSS.MS-PS4-2

Different wavelengths of visible light are seen as different _________.

• Atoms
• Colors
• Speeds
• Sounds
• None of the above

The bending of a wave as it travels from one medium to another and as a result changes speed is called

• reflection
• refraction
• diffraction
• interference
• None of the above

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NGSS.MS-PS4-2

the phenomenon where light rays bounce off a surface, changing their direction after encountering it, essentially "bouncing back" when they hit a boundary that doesn't absorb the light energy

• Diffraction
• Refraction
• Absorption
• Transmission
• Reflection

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NGSS.MS-PS4-2

The denser the matter, the faster ______ travels through it

• energy
• sound
• light
• dante
• None of the above

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NGSS.MS-PS4-2

A student is investigating how sound travels through different materials used to make cymbals. Cymbals are musical instruments that transmit sound when struck. The table below lists the materials and their properties. Based on this information, which of the following correctly lists the materials in the order sound would travel the fastest to slowest?

• gold, silver, copper-nickel, wood

• wood, gold, copper-nickel, silver
• gold, copper-nickel, silver, wood
• wood, copper-nickel, silver, gold
• None of the above

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NGSS.MS-PS4-2

Grace is conducting an experiment to understand sound waves by measuring the speed of the eaves after striking two objects together. Which of the following factors would most impact the speed of the sound waves as they travel?

• The type of material the object is made of affects the tone

• The temperature and medium through which the sound is traveling.

• How hard the object is struck, which affects the loudness of the sound.

• The direction of the wave as it spreads out from the object

• None of the above

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NGSS.MS-PS4-2

Which of the following best explains what happens to the speed of an explosion underwater (LIQUID) in which the vibrational waves of sound move from the liquid ocean to a boat (SOLID) that is floating above the explosion?

• The wave speed does not change.
• The wave speed decreases.
• The wave speed increases.
• The wave stops.

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NGSS.MS-PS4-2

A scientist observes light bending as it passes from air into water. She compares this to the behavior of sound waves traveling from air into water. Which of the following statements best explains why light and sound behave differently when passing through these materials?

• Light waves speed up and bend because they travel slower in air than in water, while sound waves slow down in water due to the higher density of water.

• Both light and sound waves bend the same way because they are affected by the density of the material.
• Light waves are electromagnetic and do not require a medium, whereas sound waves are mechanical and need a medium to travel.
• Light waves and sound waves both travel faster in water, but sound waves do not bend like light waves.
• None of these are correct

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NGSS.MS-PS4-2

A group of students is investigating how waves transfer energy using a flashlight and a speaker. They notice the following: The flashlight creates a visible beam of light.The speaker produces sound that can be heard but not seen. Which of the following experiments would best show a key difference in how light and sound waves transfer energy?

• Measure how far the flashlight beam and the sound from the speaker can travel in an open field.
• Compare how quickly the light beam and sound waves reach a detector placed 10 meters away.
• Use both the flashlight and the speaker in a vacuum of space to observe how each wave behaves without air.
• None of these would work