51 questions
A mechanical wave starts with a disturbance in matter.
True
False
Particles of matter actually travel along with a mechanical wave
True
False
Transverse waves travel only through solid matter
True
False
Earthquakes cause longitudinal waves
True
False
In a surface wave, particles of the medium move only up and down
True
False
Ocean waves crash on shore when the bottoms of the waves slow down due to friction.
True
False
All waves transfer energy from one place to another
True
False
All mechanical waves are either transverse or longitudinal waves
True
False
Some waves do not require a medium.
True
False
A source of energy is needed to start a mechanical wave
True
False
Types of mechanical waves include
longitudinal waves
transverse waves
surface waves
The medium of a mechanical wave can be a
gas
solid
liquid
any of the above
The crests of a transverse wave are like the
crests of a primary wave
troughs of a longitudinal wave
rarefactions of a secondary wave
compressions of a longitudinal wave
Examples of mechanical waves include all of the following except
ocean waves
sound waves
waves in a rope
electromagnetic waves
Waves that an earthquake sends through rocks underground include
tsunami waves
transverse waves
longitudinal waves
two of the above
Which of the following statements about ocean waves is true?
They travel on the surface of the water
They travel deep underwater
They are secondary waves
They are primary waves
You generate a longitudinal wave when you
shake a spring up and down
shake a rope up and down
push and pull a spring
The less compressed particles of matter become in a longitudinal wave, the greater the wave’s amplitude.
True
False
The distance between two adjacent compressions of a longitudinal wave is its wavelength
True
False
The frequency of a wave is the same as the frequency of the vibrations that caused the wave.
True
False
Wave speed measures the same thing as wave frequency.
True
False
Wavelength equals wave speed multiplied by wave frequency.
True
False
The resting position of particles in a longitudinal wave is where the particles are most spread out.
True
False
A wave caused by a disturbance with greater energy has greater amplitude.
True
False
If you know the speed and wavelength of a wave, you can calculate its frequency.
True
False
Waves generally travel most slowly in gases.
True
False
A wave with a higher frequency always has a greater speed than a wave with a lower frequency.
True
False
Measures of wave size include
wavelength
wave amplitude
wave frequency
two of the above
The amplitude of a transverse wave is the distance between
two adjacent crests
two adjacent troughs
a crest and a trough
a crest and the resting position
What is the speed of a wave that has a wavelength of 0.5 meters and a frequency of 2 waves per second?
14 m/s
1 m/s
4 m/s
10 m/s
Wave amplitude depends on
wavelength
wave speed
wave energy
wave frequency
wave energy of the original disturbance
When one wave passes a fixed point every second, the frequency of the waves is
0.1 Hz
1 Hz.
10 Hz.
Assume that a wave has a fixed speed. If the frequency of the wave increases, its wavelength
increases
decreases
does not change
may or may not change
The speed of waves depends on their
wavelength
frequency
medium
all of the above
Reflection occurs only with sound waves.
True
False
All reflected waves appear to be standing still.
True
False
The angle of incidence is always greater than the angle of reflection.
True
False
Diffraction is more pronounced with sound waves than light waves.
True
False
Wave interference occurs whenever waves enter a new medium.
True
False
Wave interference occurs only when a wave is reflected.
True
False
Light waves refract when they pass from air to water.
True
False
Interference occurs only when the crests of one wave overlap with the troughs of another wave
True
False
A standing wave occurs when a wave is reflected straight back from an obstacle.
True
False
Wave interference always changes the speed of a wave.
True
False
Ways that waves may interact with matter include
diffraction
destructive interference
constructive interference
Reflected waves differ from the original waves before they were reflected in their
speed
direction
frequency
wavelength
Refraction occurs because waves
cannot travel through an obstacle such as a wall.
travel at different speeds in different media.
interfere with their reflected waves
If the length of an obstacle is greater than the wavelength of a wave, you would expect to see
no diffraction
very little diffraction
a lot of diffraction
wave interference
A standing wave is a wave that
is not moving
has an upright direction
is taller than other waves
appears to be standing still.
A standing wave occurs because of a combination of
incidence and reflection
refraction and diffraction
refraction and interference
constructive and destructive interference
Which statement about destructive interference is true?
It occurs when waves pass through each other
It results in a wave with a higher frequency
It occurs when waves interact with matter
It always produces a standing wave