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WorksheetsTest A: Waves L-3
Total questions: 18
Worksheet time: 11mins
Which BEST describes the relationship between the material and the speed of sound as shown in this chart?
the more transparent the material, the faster the speed of sound
the more opaque the material, the slower the speed of sound
the denser the material, the slower the speed of sound
the denser the material, the faster the speed of sound
The speed of sound is generally greatest in
solids and least in liquids.
gases and least in solids.
solids and least in gases.
gases and least in liquids.
What is happening to the light in the picture ?
Light is refracted.
Light is reflected.
Light is diffused.
Light is absorbed.
Which of these BEST explains why the mailbox casts a shadow?
A. The Sun is very bright.
B. Light cannot pass through opaque objects.
C. Light waves change direction.
D. The Sun is too far from the object.
A thick pillow is placed against part of a stereo speaker. What will most likely happen to the sound?
The sound will be absorbed and become quieter.
The sound will become louder.
The sound will reflect and become clearer.
The sound will pass through unchanged.
How does the pillow affect the sound waves coming from the speaker?
The sound waves are reflected.
The sound waves are increased.
The sound waves are absorbed.
The sound waves are destroyed.
Which of the following is true about wireless devices?
Gamma ray waves are used because they have the most energy allowing more data to be coded in the wireless signal.
Radio waves are used because they have the most energy allowing more data to be coded in the wireless signal.
Gamma ray waves are used because they have the least amount of energy making them the safest.
Radio waves are used because they have the least amount of energy making them the safest.
The image shows a sound wave moving around a wall that it cannot move through. Which of the following is true of the sound wave
The sound wave spreads out around the wall due to diffraction.
The sound wave spreads out around the wall dure to refraction.
The sound wave spreads out around the wall due to reflection
The sound wave spreads out around the wall due to rarefaction
Which of the images shows signal that will travel farther with less energy loss causing degradation?
Image A since it is an analog signal.
Image B since it is an analog signal.
Image A since it is a digital signal.
Image B since it is a digital signal.
Which image shows the signal that uses binary code of zeros and ones to encode information?
Image A since it is an analog signal.
Image B since it is an analog signal.
Image A since it is a digital signal.
Image B since it is a digital signal.
Which of these materials on the walls of a room would work BEST to keep sound from making an echo?
Carpet
Glass
Metal
Tile
Based on the picture, which of the following is an accurate description of the process in the illustration
The different colors of light are diffracted by the new medium and are forced to become the same wavelength.
Different colors of light are blended together and forced to travel at the same speed.
White light is reflected through the prism at different angles and splits into the rainbow.
The white light is refracted by traveling through a different medium and separates into the visible light waves.
A single beam of light is shone into a glass containing milky water. Which statement BEST describes why the beam of light bends downward?
A) The milk blocks the passage of light through the water.
B) The light is moving from air into another medium.
Which statement BEST explains the diagram?
The light refracted.
The light reflected.
The mirror absorbed the light.
The mirror scattered the light.
The MOST likely reason sound travels faster in salt water than in fresh water is that salt water
is more elastic.
absorbs heat faster.
has a higher density.
reflects sound better.
A beam of light is directed toward a tank filled with water. What causes the beam of light to change directions?
change in media
change in altitude
increase in pressure
increase in temperature
Rainbows are formed when light is refracted or bent by water droplets. Why is light refracted by water droplets?
Light speeds up when it enters the water.
Light slows down when it enters the water.
Light gets trapped by water inside the droplet.
Light gets different colors from water inside the droplet.
This is an example of light been -
Absorbed
Transmitted
Reflected
