WorksheetsUnit 6 Test Light & Sound
Total questions: 18
Worksheet time: 2hrs 30mins
Which term means “a disturbance that transmits energy”?
wave
volume
vibration
frequency
If you were observing light shining on a rough piece of granite, which term would you accurately use to describe how it reacts to light?
opaque
reflected
transparent
translucent
If you were observing a computer screen that showed sound waves, which term would you accurately use to identify the number of vibrations that occur during a unit of time?
sound
volume
wavelength
frequency
You observe that light bends as it passes into a different form of matter. Which word describes what has happened?
reflection
refraction
diffraction
magnification
If you were observing a computer screen that showed light waves, what would you look for in order to measure wavelength?
the height of the wave
the distance between two high points
the length of the wave
how fast a high point moves
Which sentence explains accurately what happens when you direct light waves at an angle into mirror?
Light waves strike the surface of the mirror and are reflected in many directions.
Light waves strike the surface of the mirror and are reflected in one new direction.
Some light waves pass through the mirror while some light waves are reflected in a new direction.
Light waves strike the surface of the mirror, changing speed and bending slightly as they move in a new direction.
Which of the following gives the information you would include if you made a chart to examine the electromagnetic spectrum?
various human uses of radio waves
the colors of the rainbow organized from red to violet
a range of light waves arranged by wavelengths and frequencies
numerous objects and devices organized by the decibel level of the sounds they make
Which statement accurately describes how sounds can change as they travel through different states of matter?
Different kinds of matter can change the volume of a sound, but not its pitch and clarity.
Different kinds of matter cannot change a sound’s characteristics.
Different kinds of matter cannot change the volume or pitch of a sound.
Different kinds of matter can change a sound’s volume, pitch, and clarity.
Which of the following is an accurate statement that can be demonstrated about reflection?
A mirror absorbs as well as reflects light waves.
A prism is used to reflect all of the colors of light.
Reflection can occur whether light is present or not.
An image can be reflected by a solid surface or a liquid surface.
What is necessary for sound to travel from a radio to your ears?
air
water
any solid or gas
particles to vibrate
If you did an experimental test to explain the rates at which sound waves travel, which results would be accurate?
Sound waves move through three states of matter at the same rate.
Sound waves move faster through gases than they do through liquids.
Sound waves move faster through liquids than they do through gases.
Sound waves move faster through liquids than they do through solids.
Which sentence expresses the idea demonstrated by the illustration below?
Light waves can travel in curved lines.
Visible light travels at high speed.
Light waves travel in straight lines in all directions.
Visible light is one small part of the electromagnetic spectrum.
Which pair of terms is related to the way we see different colors?
diffraction and lens
reflection and absorption
material and refraction
magnification and focus
Why would you need a ruler to make a realistic diagram to demonstrate the way a mirror reflects light?
Measuring light waves requires precision.
It is impossible to measure light without a ruler.
Showing the path of light waves requires straight lines.
Tools of measurement are needed to analyze any aspect of light.
Study the picture of a drum below. The dots represent molecules of air or other matter. Which of the following describes the subject of the illustration?
the frequency of a drum’s sound
wavelengths produced by a drum
compression waves produced by a drum
a drum’s sound traveling in three states of matter
What makes laser light different from light from a bulb?
A laser beam contains only short radio waves.
A laser beam contains all of the wavelengths of visible light.
A laser beam shines in all directions and contains infrared rays.
A laser beam contains a single wavelength and is focused in one direction.
Why would a mirror that reflected light in a crooked line be undesirable for collecting image data?
The image would be without color.
The mirror would change the image.
The image would be hard to see.
The crooked lines would be visible and would distract the viewer.
Which of the following statements expresses the information in the diagram?
Mirrors reflect light in more than one direction.
The original angle and the reflected angle of light are equal.
Some light is absorbed by mirrors and other reflective surfaces.
The reflected image seen by the eye is exactly the same as the object itself.
