C165 3 Questions with CORRECT Answers
Question:
What accurately describes a sound wave?
Answer:
It is both the motion of particles and a disturbance away from the source of
sound. It is a disturbance that moves through a medium away from the source of
sound. It is a transverse wave. It is the motion of particles of the medium away
from the source of sound. It is a disturbance that moves through a medium away
from the source of sound.
Question:
What is the best description of frequency?
Answer:
Number of oscillations per second Measure of how compressed or expanded the medium
becomes Number of oscillations per second
Question:
In an old cowboy movie, a cowboy presses his ear to the ground, listening for the
sound of approaching horse hooves. Why does the cowboy listen through the ground
and not the air?
Answer:
Sound waves travel faster through the ground. Sound waves are affected by
temperature. Sound waves are louder through the air. Sound waves travel faster
through the ground.
Question:
Which statement about light is correct?
Answer:
Light is not a wave. Light travels more slowly than sound in air. Light travels
faster than sound.
Question:
Which frequency does a shorter wavelength correspond to at constant speed?
Answer:
Higher frequency Lower frequency Higher frequency
, Question:
While listening to someone playing a piano, you observe that he hits a key gently.
Moments later, he hits the same key again but much harder this time. In the second
case
Answer:
both loudness and pitch stay the same. the loudness has increased, but the pitch
has stayed the same.
Question:
Which statement describes amplitude?
Answer:
Amplitude is the distance between the equilibrium and trough. Amplitude is the
distance between two adjacent crests. Amplitude is the distance between the crest
and the trough. Amplitude is the distance between the equilibrium and trough.
Question:
What are radio waves commonly used for?
Answer:
Medical equipment Disease treatment Communication Communication
Question:
Why do warm objects, such as humans and warmblooded animals, stand out on thermal
images against cooler backgrounds?
Answer:
Infrared radiation X-rays Visible light Infrared radiation
Question:
Which property of a sound wave determines its loudness?
Answer:
Wavelength Amplitude Frequency Amplitude
Question:
Which property of a sound wave determines pitch?
Answer:
Amplitude Frequency Wavelength Frequency
Question:
What accurately describes a sound wave?
Answer:
It is both the motion of particles and a disturbance away from the source of
sound. It is a disturbance that moves through a medium away from the source of
sound. It is a transverse wave. It is the motion of particles of the medium away
from the source of sound. It is a disturbance that moves through a medium away
from the source of sound.
Question:
What is the best description of frequency?
Answer:
Number of oscillations per second Measure of how compressed or expanded the medium
becomes Number of oscillations per second
Question:
In an old cowboy movie, a cowboy presses his ear to the ground, listening for the
sound of approaching horse hooves. Why does the cowboy listen through the ground
and not the air?
Answer:
Sound waves travel faster through the ground. Sound waves are affected by
temperature. Sound waves are louder through the air. Sound waves travel faster
through the ground.
Question:
Which statement about light is correct?
Answer:
Light is not a wave. Light travels more slowly than sound in air. Light travels
faster than sound.
Question:
Which frequency does a shorter wavelength correspond to at constant speed?
Answer:
Higher frequency Lower frequency Higher frequency
, Question:
While listening to someone playing a piano, you observe that he hits a key gently.
Moments later, he hits the same key again but much harder this time. In the second
case
Answer:
both loudness and pitch stay the same. the loudness has increased, but the pitch
has stayed the same.
Question:
Which statement describes amplitude?
Answer:
Amplitude is the distance between the equilibrium and trough. Amplitude is the
distance between two adjacent crests. Amplitude is the distance between the crest
and the trough. Amplitude is the distance between the equilibrium and trough.
Question:
What are radio waves commonly used for?
Answer:
Medical equipment Disease treatment Communication Communication
Question:
Why do warm objects, such as humans and warmblooded animals, stand out on thermal
images against cooler backgrounds?
Answer:
Infrared radiation X-rays Visible light Infrared radiation
Question:
Which property of a sound wave determines its loudness?
Answer:
Wavelength Amplitude Frequency Amplitude
Question:
Which property of a sound wave determines pitch?
Answer:
Amplitude Frequency Wavelength Frequency
