ASTR 1101 Midterm 1

A hypothesis is an idea that is

Before you can scientifically test a hypothesis, you must use the hypothesis to develop a

If you have a stuffy nose, a fever, chills, and body aches and a doctor treats you for the flu rather than four separate diseases that account for each of your symptoms, this is an application of

If the radius of circle B is 5 times the radius of circle A, then the ratio of the area of circle B to that of circle A is

Right ascension is a measure of a star's location on the celestial sphere that is most similar to which measurement of location on Earth?

The point directly below your feet is called the

A friend takes a time-lapse picture of the sky, as shown in the figure below. What direction must your friend have been facing when the picture was taken?

Assume you are observing the night sky from a typical city in the United States with a latitude of +40. Using the figure below, which constellation of the zodiac would be nearest to the meridian at 6 P.M. in mid-September?

The day with the smallest number of daylight hours over the course of the year for a person living in the Northern Hemisphere is the

If Earth's axis were tilted by 5 instead of its actual tilt, how would the seasons be different than they are currently?

If you are above the arctic circle, the majority of the stars in your sky are

If you see a full Moon tonight, approximately how long would you have to wait to see the next full Moon?

During which lunar phase do solar eclipses occur?

If you are lucky enough to see a total solar eclipse, you must be standing in the

A superior planet is one that is

Based on the figure below, an inferior planet would have its greatest angular separation from the Sun and would therefore be most easily visible at

If the synodic period of Mars is observed from Earth to be 2.1 years, what is the sidereal period of Mars?

If the Sun is located at one focus of Earth's elliptical orbit, what is at the other focus?

The time it takes a planet to complete one full orbital revolution is commonly known as its

The average distance between a planet and the Sun is given by the ________ of its elliptical orbit.

Which of the following is true about a comet that is on an elliptical orbit around the Sun?

Kepler's third law says that a comet with a period of 160 years will have a semimajor axis of

The force of gravity that an object has is directly proportional to its

Tidal forces can affect a. moons. b. galaxies. c. planets. d. satellites.

The distance between Earth and the Moon is increasing because of

If the wavelength of a beam of light were to double, how would that affect its frequency?

A red photon has a wavelength of 650 nm. An ultraviolet photon has a wavelength of 250 nm. The energy of an ultraviolet photon is ________ the energy of a red photon.

When an electron moves from a higher energy level in an atom to a lower energy level,

What does it mean to say that an object is in thermal equilibrium?

At what temperature does water freeze?