WorksheetsWaves- Unit 3 End of Unit Test
Total questions: 10
Worksheet time: 12mins
Which object will change the direction of a beam of light without absorbing any of the light?
a mirror
a window
an object painted black
an object painted white
How does a mirror affect a beam of light that strikes it?
The mirror changes the direction of the light
The mirror absorbs the light
The mirror transmits the light, letting it pass through.
The mirror decreases the speed of light
An object absorbs all of the sunlight that strikes it.
How does the object appear when someone looks at it?
black
white
An object reflects and scatters all of the sunlight that strikes it.
How does the object appear when someone looks at it?
black
white
The basketball (a) most wavelengths of light that shine on it. However, it (b) wavelengths in the orange part of the (c) Some of this light enters the (d) and is perceived as orange.
The flower (a) most wavelengths of light that shine on it. However, it (b) wavelengths in the red part of the (c) Some of this light enters the (d) and is perceived as red.
Drag and drop the objects to correctly classify them as transparent, translucent, or opaque.
Transparent- (a) Translucent- (b) Opaque- (c)
Two friends are using mobile telephones to send text messages to each other.
How are the letters and other symbols carried between the two phones?
as an encoded message in radio waves
as low-energy sound waves through the air only
as a variety of sound waves through the air and telephone cables
as tiny packets of sound that travel between air molecules
How is digital information useful? Digital information is data that is represented by (a) Words, pictures, and sounds can all be (b) as digital information, and then either stored or (c) Then, the information can be (d) to restore it to its original form. All (e) rely on digital information.
