0
What is a apparent change in pitch of a sound caused by the motion of the object making the sound?
Wiki User
∙ 8y ago
This is an example of the Doppler effect.
Sound is composed of waves.
A particular vibration produces a sound wave with a particular wavelength.
When the sound source moves towards a listener the waves are "bunched up". That results in a shorter observed wavelength and thus a higher frequency.
When the sound source moves away the opposite happens. The frequency of the sound waves decreases.
Wiki User
∙ 10y ago
Wiki User
∙ 8y agoThe Doppler Effect. A sound source moving toward you has an apparent pitch higher than it really is, as the sound waves are compressed by it coming toward you. A sound source moving away has a lower pitch.
The classic example is the sound of a train's horn; high pitched as it is coming closer, and an abrupt shift as it passes and begins to move away. The amount of the change in pitch is directly proportional to the radial velocity.
Wiki User
∙ 12y agoDoppler effect.
Wiki User
∙ 15y agoDoppler shift, or Doppler effect
Add your answer:
Earn +20 pts
A detected apparent change in the pitch caused by the motion of a sound source or of an observer is called?
The Doppler effect.The Doppler effect.The Doppler effect.The Doppler effect.
What makes the satellite's motion change direction?
The change in direction of motion of a satellite is caused by the gravitational field of the planet of which it is a satellite.
Is the change in motion a object always caused by a force?
yes
When will an object change its state of motion?
An object changes its state of motion when it accelerates or decelerates, usually caused by a force.
How do equations of motion change for an object moving in uniform motion?
The "equations of motion" are statements that describe motion. They would not be of much use if the very thing they're used to describe caused them to change. I'll say they don't.
What is a parallax error?
Parallax, more accurately motion parallax, is the change of angular position of two observations of a single object relative to each other as seen by an observer, caused by the motion of the observer. Simply put, it is the apparent shift of an object against a fixed background that is caused by a change in the observer's position.
A detected apparent change in the pitch caused by the motion of a sound source or of an observer is called?
The Doppler effect.The Doppler effect.The Doppler effect.The Doppler effect.
What caused change in motion of an object?
Force.
What is the line that the sun traces across the celestial sphere?
The "ecliptic". In truth, the Sun doesn't move; the apparent motion of the Sun across the sky is caused by the Earth spinning, and the apparent motion of the Sun across the "celestial sphere" is caused by the Earth orbiting the Sun. But the plane of the Earth's orbit around the Sun is what causes the apparent motion of the Sun across the celestial sphere, so the "ecliptic" is actually the plane of the Earth's orbit.
Any change in motion is caused by?
Energy applied to it.
What makes the satellite's motion change direction?
The change in direction of motion of a satellite is caused by the gravitational field of the planet of which it is a satellite.
Is the change in motion a object always caused by a force?
yes
What is a star's apparent shift in motion called?
Motion parallax.
When will an object change its state of motion?
An object changes its state of motion when it accelerates or decelerates, usually caused by a force.
What is Mercury's apparent motion?
mercurys motion can be like any other planets motion
Why there are seasons and the apparent motion of the stars and sun?
The seasons are due to axial tilts of planets and the apparent motion of stars and sun on the celestial sphere is due to diurnal motion.
Why does the size of the shadow change in a day?
Because the sun's change in apparent motion across the sky results in a change in the angle of the shadow that is cast.
