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WorksheetsWaves 6 weeks Exam
Total questions: 89
Worksheet time: 22hrs 15mins
In the illustration, the light ray striking the object is-
The diagram shows a series of wave fronts approaching an opening in a barrier. Point P is located on the opposite side of the barrier. The wave fronts reach point P as a result of
resonance
refraction
reflection
diffraction
When 2 waves meet and create a bigger wave
Constructive Interference
Destructive Interference
When two waves meet and create a smaller wave
Constructive
Destructive
What will be the result after these two waves overlap?
A taller wave
A shorter wave
A wave with no amplitude
3 waves
Two wave pulses with equal positive amplitudes travel on a cord approaching each other. What is the result of the oscillations when the pulses reach the same point?
It is constructive interference with twice the amplitude
It is destructive interference with zero amplitude
It is constructive interference with slightly greater amplitude
It is constructive interference with the negative amplitude
The standing wave is produced
The sonar device on a fishing boat uses underwater sound to locate fish. Would you expect sonar to be a longitudinal or a transverse wave?
Longitudinal
Transverse
Surface
Electromagnetic
Letter A is the
wavelength
crest
compression
amplitude
What letter represents the amplitude?
D
B
E
C
A tennis coach paces back and forth along the sideline 10 times in 2 minutes (convert) . The frequency of her pacing is (a) Hz (3 decimal places)
If the crest of an ocean wave moves a distance of 20 meters in 10 seconds, then the speed of the ocean wave is?
10 m/s
2 m/s
5 m/s
0 m/s
Why is it that we can see the Moon?
it is luminous
it is illuminous
it is in space
it is close to the Earth
Which of the following electromagnetic waves travels the fastest?
gamma rays
radio waves
ultraviolet waves
they all travel the same speed
As one approaches (gets closer) to a light bulb, the brightness of the bulb....
Increases (brighter)
Decreases
Stays the same
Changes in some unknown way
A student stands 10 feet away from a light bulb. The student walks toward the light bulb to a 5 feet distance. Which is true? Intensity = 1 / d2
The bulb appears 2x's brighter
The bulb appears 4x's brighter
The bulb appears 5x's brighter
The bulb appears 25x's brighter
Standing waves are created by
Two identical waves reflecting off each other
Two identical waves being diffracted together
Two identical waves move through each other in opposite directions
Two identical waves are diffracted from two identical sources
Amplitude affects which characteristic of sound waves?
frequency
pitch
loudness
wave speed
The number of cycles that are completed per second is called the ________ and is measured in _________.
frequency, Hertz
wavelength, meters
amplitude, meters
period, seconds
A wave has a speed of 24 m/s and a wavelength of 0.04 m. What is the frequency of the wave?
600 Hz
600 m/s
0.096 Hz
0.04 Hz
Light travels in a _________ path.
circular
straight
curved
Objects that can be seen due to light reflecting from them are called
Luminous flux
Luminous sources
Illumminate sources
Power sources
Objects that absorb and reflect light but do not transmit it are
transparent
translucent
opaque
luminous
The picture shows which type of reflection?
Specular Reflection
Optical Reflection
Diffuse Reflection
Scatter Reflection
The angle between the incident ray and the normal. (X on the diagram) is called the:
Angle of Optic Sight
Angle of Reflection
Angle of Incidence
Angle of Normal
The angle between the reflected ray and the normal (labelled Y on the diagram) is called the:
Angle of Incidence
Angle of Reflection
Angle of Normal
Angle of Optic Sight
An imaginary line that is drawn at a right angle (90 degrees) to a mirror (Green line) is called the:
Reflected Ray
Normal
Incident Ray
Perpendicular Ray
When light reflects off of a completely smooth surface it is called:
Diffuse Reflection
Optical Reflection
Smooth Reflection
Specular Reflection
An object that gives off it's own light is called?
luminous
illuminated
electricity
Planck's Paradox
Refraction occurs due to _____________
the change in the wave's speed when it enters a new medium
the wave bouncing off a boundary
the change in the wave's frequency when it enters a new medium
the wave bending around a barrier
The law of reflection states that
the angle of reflection is equal to the angle of incidence
the angle of reflection is greater than the angle of incidence
the image is laterally inverted
the image must be upright and the same size as the object
How are we able to see the color white?
All colors except red are absorbed
All colors are absorbed
All colors are reflected
All colors except red are reflected
A blue dish appears blue because it
absorbs blue light
absorbs white light
reflects white light
reflects blue light
Which of the following represents a diverging light rays?
It is difficult to see the roadway from a car on a rainy night because the road surface
that is normally a diffuse reflector when dry becomes a mirror surface when wet.
absorbs the light more when wet.
is obscured by the rain itself.
scatters light in all directions.
Which word means to bend light rays toward each other?
Converging light
Diverging light
Virtual Light
Real Light
A dentist uses a small dental mirror to help magnify teeth in your mouth. What type of mirror is this?
a convex mirror
a concave mirror
a plane mirror
a concave lens
The speed of light in a vacuum, that can be used to determine distance of objects in space
three hundred million meters per second
three hundred thousand meters per second
three hundred meters per second
three meters per second
The intensity of light can increase if
the distance from the light source gets larger
The distance from the light source gets smaller
it does not change, it is always the same
the distance stays the same, but the height changes
When a light ray vibrates at the same frequency as an objects natural frequency what occurs?
Resonance
Reflection
Refraction
Retraction
The production of light with a specific pattern of oscillation.
reflection
polarization
refraction
diffraction
A polarizer is used to:
reduce intensity of light
produce polarized light
increase intensity of light
produce unpolarized light
light waves can be polarized as they are:
transverse
of high frequency
longitudinal
reflected
Approximately how much light is blocked by two polarizing filters that are perpendicular to each other?
0%
50%
75%
100%
Approximately how much light is blocked by two polarizing filters that are parallel to each other?
0%
50%
75%
100%
What's polarization of waves?
Restriction of the direction of oscillation of a transverse wave to only one plane.
Restriction of the direction of oscillation of a longitudinal wave to only one plane.
Restriction of the direction of oscillation of a transverse wave to just two planes.
Restriction of the direction of oscillation of a wave into positive and negative fields
What is the difference between light that is polarized and light that is not?
polarized light vibrates along multiple planes; unpolarized light vibrates along a single plane
there is no difference
polarized light vibrates along a single plane; unpolarized light vibrates along multiple planes
What does a wave carry from place to place?
energy
matter
people
transverse
longitudinal
surface
electromagnetic
transverse
longitudinal
surface
electromagnetic
matter
The point at which a medium would be at rest, if there were no disturbance is
amplitude
The type of wave in which the medium moves at a right angle, perpendicular, to the wave motion is
seismic
resonance
resonance
resonance
A wave that completes 7 cycles in 4 seconds would have a frequency of?
2.33 Hz
1.75 Hz
28 Hz
.57 Hz
A wave has a period of 10 s and a wavelength of 2 m, what is the velocity/speed of the wave?
20 m/s
.2 m/s
5 m/s
4 m/s
Two sound waves are traveling through air on has a frequency of 380 Hz and the other has a frequency of 180 Hz, which is traveling slower?
380 Hz
180 Hz
the same speed
not enough information
The diagram represents a rope along which two pulses of equal amplitude, A=4 m, approach point P.
As the two pulses pass through point P, what is the maximum vertical displacement of the rope at point P?
8 m
2 m
4 m
0 m
1 m
What type of interference do noise cancelling headphones use?
constructive Interference
destructive Interference
doppler effect
resonance
amplitude is measured in?
meters
seconds
ml
Hz
pressure
A sound wave traveling at 343 m/s has a frequency of 262 Hz. What is the wave length?
1.31 m
81 m
124,509 m
.76 m
Waht is the speed of sound in space?
0 m/s
343 m/s
1500 m/s
767 m/s
A police siren is traveling away from you at 29 m/s blaring the siren at 411 HZ. Which of the following frequencies of sound would most likely be heard?
450 Hz
411 Hz
382 Hz
10,000 Hz
10 Hz
Look at the picture. What property allows Jack to hear Jill on the other side of the door?
Reflection
Refraction
Diffraction
