GHY 1010 Quiz 2

On average, solar maximums occur every ________. Select one: a. 32 years b. 365 days c. 182 days d. 11 years e. 300 years

d. 11 years

Our Solar System is embedded in the ________ of the Milky Way. Select one: a. Scutum-Centaurus Arm b. Perseus Arm c. Cygnus X complex d. Orion Spur of the Sagittarius Arm e. Vela Molecular Ridge

d. Orion Spur of the Sagittarius Arm

Solar radiation that is intercept by Earth is called Select one: a. insolation. b. thermopause. c. thermal infrared radiation. d. solar constant. e. solar wind.

a. insolation.

The Sun's declination migrates through ________ of latitude annually. Select one: a. 30 degrees b. 23.5 degrees c. 47 degrees d. 90 degrees e. 66.5 degrees

c. 47 degrees

The Tropic of Cancer refers to Select one: a. 0 degrees latitude when the Sun crosses the equator. b. the location of the subsolar point on or around December 21. c. the parallel that occurs at 23.5 degrees South. d. the parallel that is the farthest northern location of the subsolar point during the year. e. the location of the subsolar point on or around September 22.

d. the parallel that is the farthest northern location of the subsolar point during the year.

As viewed from the equator, Earth's rotation is described as Select one: a. east to west. b. north to south. c. counterclockwise. d. west to east. e. clockwise.

d. west to east.

One June 21st, the Sun's declination is at Select one: a. the Tropic of Capricorn (23.5 degrees S). b. the Tropic of Cancer (23.5 degrees N). c. the equator. d. the Arctic Circle. e. the Antarctic Circle.

b. the Tropic of Cancer (23.5 degrees N).

On the September Equinox Select one: a. the subsolar point is at the Tropic of Cancer (23.5 degrees S). b. the sun rises at the South Pole and will remain over the horizon for the next six months. c. the Arctic Circle is completely within the circle of illumination and experiences 24 hours of daylength. d. all latitudes on Earth except the equator experiences unequal daylengths. e. the Northern Hemisphere's spring officially begins.

b. the sun rises at the South Pole and will remain over the horizon for the next six months.

The electromagnetic spectrum encompasses Select one: a. all possible wavelengths of electromagnetic energy. b. only radiant energy within the visible light wavelength range. c. thermal infrared through radiowaves only. d. those wavelengths of electromagnetic energy greater than 3.00 μm. e. those wavelengths of electromagnetic energy smaller than 0.01 μm.

a. all possible wavelengths of electromagnetic energy.

Which of the following is not one of the reasons for Earth's seasonality? Select one: a. the moon's rotation around Earth b. Earth's sphericity c. Earth's daily rotation on its axis d. Earth's axial tilt e. rotation of Earth around the Sun

a. the moon's rotation around Earth

The solar constant is measured at Select one: a. the thermopause. b. the edge of the Sun's atmosphere. c. Earth's surface. d. the Sun's surface. e. sea level.

a. the thermopause.

Which is true of the June solstice? Select one: a. The subsolar point is at the Tropic of Capricorn (23.5 degrees N). b. The Arctic Circle is completely within the circle of illumination. c. The South Pole experiences 24 hours of daylight. d. The Antarctic Circle is completely within the circle of illumination. e. The subsolar point is at the equator.

b. The Arctic Circle is completely within the circle of illumination.

Earth's orbit around the Sun Select one: a. is perfectly circular. b. is elliptical. c. has been constant since the birth of the Solar System. d. results in a constant distance from the Sun throughout the year. e. takes approximately the same amount of time as the orbit of other planets around the Sun.

b. is elliptical.

Most of the processes in our biosphere are fueled by Select one: a. energy derived from inside Earth. b. radiant energy from the Sun. c. tidal action of the Oceans and large lakes. d. the moon. e. utilities and oil companies.

b. radiant energy from the Sun.

The dominant wavelength emitted by Earth is Select one: a. visible light. b. X-ray radiation. c. infrared. d. gamma radiation. e. microwave.

c. infrared.

The Southern Hemisphere's summer solstice occurs Select one: a. on or around June 21. b. when the subsolar point is at the Tropic of Cancer. c. on or around December 21. d. at the same time as the Northern Hemisphere's summer solstice. e. during the Northern Hemisphere's equinox.

c. on or around December 21.

The subsolar point occurs Select one: a. only within a few degrees north or south of the equator. b. at all latitudes at least once throughout the year. c. only at lower latitudes between the Tropics (23.5 degrees N/S). d. at all latitudes between 60 degrees N and S. e. primarily in the Northern Hemisphere to 33.5 degrees N.

c. only at lower latitudes between the Tropics (23.5 degrees N/S).

Averaged daily net radiation flows measured at the top of the atmosphere by the Earth Radiation Budget Experiment are Select one: a. lowest in the midlatitudes (40 degrees to 60 degrees N/S). b. equal at all latitudes. c. positive at lower latitudes. d. negative at lower latitudes e. highest in the midlatitudes (40 degrees to 60 degrees N/S).

c. positive at lower latitudes.

A surface disturbance on the Sun's surface caused by magnetic storms is called a(n) Select one: a. magnetic cyclone. b. aurora. c. solar wind. d. sunspot. e. electromagnetic spectrum.

d. sunspot.

The plane of Earth's orbit about the Sun is called Select one: a. the great circle. b. perihelion. c. aphelion. d. the subsolar point. e. the plane of the ecliptic.

e. the plane of the ecliptic.