Astro 7N Exam 1 - the mass of Earth and a radius the radius of Ea...

Astro 7N Exam 1

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Say that there were a planet X in our Solar System with a mass 1/4 the mass of Earth and a radius 1/2 the radius of Earth. How will the gravity on its surface compare to the surface gravity of Earth? - ANSWER-Surface gravity on planet X is the same as on Earth

What is the relationship between wavelength and frequency? - ANSWER-If the frequency increases the wavelength decreases

Which would have the longest day and the shortest year? -ANSWER- A planet that rotated slowly on its axis and orbited the Sun rapidly

The North Star is a star in the constellation of Ursa Minor, which lies just above the North pole of Earth. Which of the following is true? - ANSWER-Ursa Minor is not a Zodiac constellation

When does the New moon rise? -ANSWER-Sunrise

If a telescope in space is only 1/4 the diameter of a telescope on Earth, which of the following is true? -ANSWER-The larger telescope can observe objects fainter than the space telescope

A new planet orbits its star faster than the Earth orbits the Sun and it rotates more slowly than the Earth rotates. Which of the following is true? -ANSWER-The new planet has a shorter year than Earth and a longer day than Earth

Compared to ultraviolet radiation, X-rays have a wavelength that is ... - ANSWER-Shorter

From Earth, in which constellation might you find the planet Saturn? - ANSWER-Taurus

What are the best clouds for sunset pictures and why? -ANSWER- High/mid-level clouds, These draw out the colors of the sunset best

In this diagram, the moon is orbiting counter clockwise and the Earth is spinning counter clockwise. At what time will this moon phase rise?-ANSWER-Midnight

In the above picture, Spectrum A does not match Spectrum B. which of the following is true? -ANSWER-Spectrum A uses the wrong temperature

At approximately what time does the third quarter Moon rise? - ANSWER-midnight

A___telescope uses___to focus light -ANSWER-- refracting: lenses

- reflecting: mirrors

Which of the following types of light has the highest frequency? - ANSWER-Gamma rays

Object A has a temperature of 5000K while object B's temperature is 500K. Which object has its blackbody spectrum peak at a shorter wavelength? -ANSWER-Object A

Which phase is the moon in the diagram above? -ANSWER-Waning crescent

What color does a sunset cause scenery to take on before the sun sets, and right after the sun sets? -ANSWER-Golden before and blue after

What can cause a photograph to not have significane and for the viewer to lack interest? -ANSWER-No clear subject

Which factor(s) cause you to jump higher with Mars' gravity than Earth's gravity? -ANSWER-Mars is less massive than the Earth

The position the bird was placed in this image was guided by: -

ANSWER-the law of thirds

In the diagram above, what is happening in the box in the center? - ANSWER-Hydrogen gas is absorbing photons at specific wavelengths

Lower-energy radiation has..... -ANSWER-Longer wavelengths

The spectrum of an oxygen lamp looks different than the spectrum of a sodium lamp because..... -ANSWER-Each atom has a unique set of electron orbits

The spectrum of an oxygen lamp looks different than the spectrum of a sodium lamp because.... -ANSWER-Each atom has a unique set of electron orbits

Which planet has a temperature of 800 degrees Fahrenheit on the side facing the Sun and -290 degrees Fahrenheit on the side opposite the Sun? -ANSWER-Mercury

As the solar nebula collapsed, it became a disk because.... - ANSWER-The overall rotation of the nebula plus collisions between particles made the particles go in more or less the same direction

Could there be a place where it would never be day on Mercury? - ANSWER-There could be a crater that is always in shadow since there is water ice that survives

what object is shown in this image? -ANSWER-Titan

What color might the sky of a planet with an atmosphere around a star much cooler than the Sun be? -ANSWER-Red, a much cooler star has an intensity peak at redder wavelengths

Which of the following is NOT a characteristic jovian palnets? - ANSWER-They have a higher density than terrestrial planets.

Which planet looks the most like the Moon? -ANSWER-Mercury

Tidal heating on lo causes.... -ANSWER-sulfur volcanoes

Which of the following is NOT required in order to classify a Solar System object as a planet -ANSWER-It must be larger than all of the moons in the Solar System

What would happen if the ozone layer were completely destroyed - ANSWER-Ultraviolet radiation from the Sun would get through the atmosphere and cause damage to life

Which art movement influenced many modern astronomical artists, with an emphasis on large natural formations dwarfing any human elements in landscape scenes? -ANSWER-Hudson River School