Vocabulary 1
A _______ is a disturbance that transmits energy.
wave
___________ materials do not let light pass through them.
opaque
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?
a. reflected
b. transparent
c. opaque
d. translucent
c. opaque
Which of the following is an accurate statement that can be demonstrated about reflection?
a. A mirror absorbs as well as reflects light waves.
b. An image can be reflected by a solid surface or a liquid surface.
c. A prism is used to reflect all the colors of light.
d. Reflection can occur whether light is present or not.
b. An image can be reflected by a solid surface or a liquid surface.
If you were observing a computer screen that showed sound waves, which term would you use to identify the number of vibrations that occur during a unit of time?
a. volume
b. sound
c. wavelength
d. frequency
d. frequency
The loudness of a sound is its __________.
volume
Materials that let light pass through them are _____________________.
transparent
You observe that light bends as it passes into a different form of matter. What word describes what has happened?
a. diffraction
b. magnification
c. reflection
d. refraction
d. refraction
Which pair of terms is related to the way we see different colors?
a. diffraction and lens
b. reflection and absorption
c. magnification and force
d. material and refraction
b. reflection and absorption
Which statement accurately describes how sounds can change as they travel through different states of matter?
a. Different kinds of matter cannot change a sound's characteristics.
b. Different kinds of matter can change a sounds volume, pitch, and clarity.
c. Different kinds of matter cannot change the volume or pitch of a sound.
b. Different kinds of matter can change a sounds volume, pitch, and clarity.
The highness or lowness of a sound is ___________.
pitch
__________materials both transmit some light and absorb some light.
translucent
If you were observing a computer screen that showed light waves, what would you look for in order to measure wavelength?
a. the height of the wave
b. the distance between two high points
c. the length of the wave
d. how fast a high point moves
b. the distance between two high points
What makes laser light different from light from a bulb?
a. A laser beam contains only short radio waves.
b. A laser beam contains a single wavelength and is focused in one direction.
c. A laser beam shines in all directions and contains infrared rays.
d. A laser beam contains all the wavelengths of visible light.
b. A laser beam contains a single wavelength and is focused in one direction.
Which is necessary for sound to travel from a radio to your ears?
a. air
b. water
c. any solid or gas
d. particles to vibrate
d. particles to vibrate
________ is the number of vibrations that occur during a unit of time.
frequency
The bouncing of light off an object is known as _________________.
reflection
Which sentence explains what happens when you direct light waves at an angle in a mirror?
a. Some light waves pass through the mirror while some are reflected in a new direction.
b. Light waves strike the surface of the mirror and are reflected in many directions.
c. Light waves strike the surface of the mirror, changing speed and bending slightly as they move in a new direction.
d. Light waves strike the surface of the mirror and are reflected in one new direction.
d. Light waves strike the surface of the mirror and are reflected in one new direction.
Why would a mirror that reflected light in a crooked line be undesirable for collecting image data?
a. The image would be without color.
b. The mirror would change the image.
c. The image would be hard to see.
d. The crooked lines would be visible and would distract the viewer.
b. The mirror would change the image.
If you did an experimental test to explain the rates at which sound waves travel, which results would be accurate?
a. Sound waves move through the three states of matter at the same rate.
b. Sound waves move faster through liquids than they do through solids.
c. Sound waves move faster through gases than they do through liquids.
d. Sound waves move faster through liquids than they do through gases.
d. Sound waves move faster through liquids than they do through gases.
_________ is a form of energy that can move through space.
light
The bending of light as it passes at an angle from one type of matter into another is called ______________________.
refraction
Which explanation for the use of concave and convex lenses in eyeglasses is best?
a. In all eyeglasses, both lenses work together to correct vision.
b. Different types of vision problems require one type of lens or the other.
c. Concave lenses are useful for spreading light waves.
d. Both lenses are different in shape but not in function.
b. Different types of vision problems require one type of lens or the other.
Why would you need a ruler to make a realistic diagram to demonstrate the way a mirror reflects light?
a. Showing the path of light waves requires straight lines.
b. Tools of measurement are needed to analyze any aspect of light.
c. It is impossible to measure light without a ruler.
d. Measuring light waves requires precision.
a. Showing the path of light waves requires straight lines.
While swimming underwater in a pool, George hears the honking of a truck's horn. What happened as the sound waves traveled from the horn to George's ears?
a. The waves sped up as they passed from the air to the water.
b. The waves did not change speed as they passed from air to water.
c. The waves stopped as they reached the water.
d. The waves slowed down as they passed from air to water.
a. The waves sped up as they passed from the air to the water.