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WorksheetsUnit 4 (SCIENCE)
Total questions: 35
Worksheet time: 18mins
What is true for ALL of the examples of electromagnetic waves?
They all move at the same speed in a vacuum.
They all have the same wavelength.
They all have the same frequency.
They all have the same energy.
Which of these waves CANNOT travel through the vacuum of space?
Microwaves
Radio Waves
Light Waves
Sound Waves
Which band is the smallest within the electromagnetic spectrum?
X Rays
Microwaves
Radio Waves
Visible Light
Sound waves
are particle waves.
travel through a medium.
are electromagnetic radiation.
can travel through outer space.
Assume the light wave directed at the paper is white light and the paper contains pigments that absorb the wavelengths of red-orange-yellow-green-blue-indigo-violet. What color will the paper appear to human eyes?
Black
Brown
Green
White
Nina’s measurements, shown in the table here, BEST represent a wave with
decreasing frequency.
increasing frequency.
increasing amplitude.
decreasing amplitude.
The distance shown in the diagram is known as the
amplitude.
crest.
trough.
wavelength.
All of the waves in the electromagnetic spectrum are _______ waves.
longitudinal
transverse
mechanical
compression
Why do we see lightning before we hear thunder?
The lightning forms before the thunder does.
Sound travels faster than light.
Light travels faster than sound.
The ears transmit information more slowly than the eyes.
How do sound waves move in air?
The wave particles diffract around a barrier.
The wave particles displace one another, with particles replacing each other.
The wave particles move via acceleration; that is, they increase speed.
The wave particles move in a curvilinear motion.
A source of sound is detected in the middle of a room. Which can account for a decrease in sound intensity for an observer?
a decrease in speed from the source
an increase in speed from the source
a decrease in the radius from the source
an increase in the radius from the source
What happens when light strikes a transparent object?
All of the light passes through the object.
All of the light is reflected by the object.
None of the light can pass through the object.
Some of the light passes through, and some of the light is reflected by the object.
How does an object look when it is viewed through a transparent object?
The object can not be seen.
The object can be seen clearly.
The object appears as a blurry shape.
The object is clear but the shape is distorted.
How does an object look when it is viewed through an opaque object?
The object can not be seen.
The object can be seen clearly.
The object appears as a blurry shape.
The object is clear but the shape is distorted.
What do a prism, a magnifying glass, a microscope, and eyeglasses ALL have in common?
They are opaque.
They refract light.
They reflect light.
They are translucent.
Light is a form of _________ that travels in waves. Visible light is represented on the diagram toward the middle of the Electromagnetic Spectrum.
Energy
Gas
Liquid
Matter
The image shown is known as the electromagnetic spectrum. The electromagnetic spectrum is a wide range of different forms of __________ that travel as waves.
Energy
Heat
Light
Sound
CD's and DVD's both are applications of light. Light is used to read the information on the disc. Which property of light is used in this technology?
Diffraction
Interference
Reflection
Refraction
Remote controls use invisible light of frequency just below the visible range. This part of the electromagnetic spectrum is called
Infrared
Microwaves
Ultraviolet
X-Rays
Two people each hold the end of a rope and create waves by moving their arms up and down. This wave is best classified as a transverse wave because ___________
both the rope particles and the wave are moving in the same direction.
the wave is moving up and down as the particles of the rope move horizontally.
the wave is moving horizontally as the particles of the rope move up and down.
the wave is moving in a parallel direction with the motion of the person's arms.
The speed of a note created by a flute will increase as the speed of sound increases. When a marching band goes outside on a cold day, what would you predict would happen to the note played on a flute?
It would decrease because the speed of sound and temperature are proportional.
It would increase because the speed of sound and temperature are proportional.
It would decrease because the speed of sound and temperature are inversely proportional.
It would increase because the speed of sound and temperature are inversely proportional.
A singer sings a note into a microphone. Which of the parts of the wave would be affected by the microphone and how?
D, the frequency would get higher.
C, the wavelength would get longer.
C and D, the amplitude and wavelength would increase.
A, B and D. The amplitude and crest would be higher, while the trough would be lower.
Wireless Internet is a way to send and receive Internet data over relatively short distances with low-power transmitters. What type of waves are transmitted for wifi?
Light
Radio
Seismic
Sound
Radio waves can be used to transmit information. What is an advantage of this method in computer technology?
Computers can run faster.
Computers can be wireless.
Computers can store more data.
Computers can be made smaller.
Looking at the wave diagram, which best describes the wave?
The period of the wave is decreasing.
The energy of the wave is decreasing.
The frequency of the wave is decreasing.
The wavelength of the wave is decreasing.
In the military, night vision goggles are used to pull off secret missions into areas that are very dangerous. For this reason, the soldiers try to infiltrate at night so they can't be seen. Thermal-imaging devices are often used as well to locate people on these highly secretive missions. What type of electromagnetic radiation is being utilized?
Radio waves
Gamma rays
Ultraviolet rays
Infrared rays
In order for you to see an object, which of these must happen?
Light reflected from the object's surface must enter your eyes.
The object must have a shadow, for your brain to interpret what it is.
Light must be absorbed by the object and then refracted back to your eyes.
Light travels from the object, back to the light source, and then to your eyes.
Examine the pattern of the wave shown. What is true about the amplitude and wavelength of the wave when the pattern changes?
Both the amplitude and wavelength of the wave increase.
Both the amplitude and wavelength of the wave decrease.
The amplitude of the wave increases while the wavelength decreases.
The amplitude of the wave decreases while the wavelength increases.
Which of these waves would have the greatest amount of energy?
A
B
Their energy is equal
There is not enough information
The harder you strike a drum, the greater the sound’s
Medium
Volume
Frequency
Pitch
All waves on the electromagnetic spectrum travel at the same speed in a vacuum. The speed of these waves in a vacuum is 3x108 m/s. As the wavelength of a wave doubles, how does the speed and frequency of the wave change?
The speed remains the same and the frequency is halved.
The frequency remains the same and the speed is halved.
The speed remains the same and the frequency is doubled.
The frequency remains the same and the speed is doubled.
Glasses, cameras, flashlights, binoculars, telescopes and peepholes are all made using __ lenses.
Concave
Convex
Compound
Converging
A __ lens is sometimes called a converging lens because it ___.
convex; makes parallel light rays curve outward or diverge.
concave; makes parallel light rays travel at a faster speed than before they encountered the lens.
convex; makes parallel light rays passing through it bend inward and meet (converge) at a spot just beyond the lens known as the focal point.
concave; makes parallel light rays passing through it bend inward and meet (converge) at a spot just beyond the lens known as the focal point.
What happens when light rays pass through a concave lens?
Parallel light rays pass through the lens and are refracted
inward.
Parallel light rays pass through the lens and are
refracted outward.
Perpendicular light rays pass through the lens are are refracted inward.
Perpendicular light rays pass through the lens are are refracted outward.
Refraction is the bending of light as it changes in speed and direction when entering a medium. After light enters the substances (medium) listed; in which order will light travel the slowest to fastest?
air, water, diamond, glass
air, water, glass, diamond
diamond, glass, water, air
diamond, water, glass , air
