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If the distance between us and a star is doubled the apparent brightness is decreased by a factor of four true or false?
True. The apparent brightness of a star is inversely proportional to the square of the distance between the star and the observer. So if the distance is doubled, the apparent brightness will decrease by a factor of four.
The diffence in brightness between two stars is related to the?
Their distance away from you and their intrinsic luminosity.
What is the relationship between a planet's distance from the sun and the planet's period of revolution?
The relationship between the planet's SPEED and its distance from the Sun is given by Kepler's Third Law.From there, it is fairly easy to derive a relationship between the period of revolution, and the distance.
Why are pulsating variable stars useful for finding distances to globular clusters?
It really depends on the type of star, but for certain star types, there is a relationship between the period and the absolute brightness, so if the period is observed, the absolute brightness can be deduced. Yes. It seems like this question is about the Cepheid variables.
How is the brightness of a Cepheid star calculated by knowing the period?
The brightness of a Cepheid star is determined by its period-luminosity relationship, which is a relationship between the star's variability period and its intrinsic luminosity. By measuring the period of a Cepheid star, astronomers can use the period-luminosity relationship to calculate its luminosity, and from there determine its apparent brightness as observed from Earth.
What physics quantities do the kinematic equations describe the relationship between?
The kinematic equations describe the relationship between distance, time, initial velocity, final velocity, and acceleration in physics.
Describe the relationship between a planets distance from the Sun and the length ofa a season on that planet?
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What is the relationship between wavelength and hue, and how does it compare to the relationship between brightness and which other attribute?
The relationship between wavelength and hue is that shorter wavelengths correspond to cooler colors like blue and longer wavelengths correspond to warmer colors like red. This relationship is similar to the relationship between brightness and intensity, where higher brightness levels correspond to higher intensity levels.
Describe the relationship between the variable of time distance and speed?
Time = (distance) divided by (speed) Distance = (speed) multiplied by (time) Speed = (distance) divided by (time)
How do we measure the distance between stellars?
With maths and light brightness.... Distance between two points...
How can cepheids be utilized to calculate distance accurately?
Cepheids are bright, pulsating stars that have a predictable relationship between their brightness and their pulsation period. By measuring the period of a cepheid's pulsation and comparing it to its observed brightness, astronomers can accurately determine the star's intrinsic brightness. This information can then be used to calculate the star's distance from Earth, as the apparent brightness of a star decreases with distance. This method, known as the period-luminosity relationship, allows astronomers to calculate distances to faraway galaxies and other celestial objects with high accuracy.
What is the relationship between intensity and brightness in the context of light perception?
The relationship between intensity and brightness in light perception is that intensity refers to the amount of light energy emitted or received, while brightness is the subjective perception of how intense the light appears to the human eye. In general, higher intensity light sources are perceived as brighter, but factors like distance and surrounding light levels can also affect brightness perception.
Describe the relationship between mass and weight?
Describe the relationship between mass and weight.
What is the Relationship Between Voltage And Brightness of the Bulb?
The relationship between voltage and brightness of a bulb is directly proportional. As voltage increases, the brightness of the bulb increases because higher voltage provides more energy for the bulb to emit light. Conversely, decreasing voltage reduces the brightness of the bulb.
What is the relationship between brightness and temperature shown within the main sequence?
As temperature increases the absolute brightness increases
How does the relationship between brightness and perception in lighting, as measured in lumens, demonstrate a logarithmic scale?
The relationship between brightness and perception in lighting, measured in lumens, demonstrates a logarithmic scale because our perception of brightness increases more slowly as the actual brightness increases. This means that doubling the lumens doesn't result in a perceived doubling of brightness.
If the distance between us and a star is doubled the apparent brightness is decreased by a factor of four true or false?
True. The apparent brightness of a star is inversely proportional to the square of the distance between the star and the observer. So if the distance is doubled, the apparent brightness will decrease by a factor of four.
