Show:
Stars
Sun
Mixed Ch. 2 Questions
Galaxies
Universe
100
The Color of a Star depends on its: a. Size b. Temperature c. Shape d. Magnitude
Answer: b. Temperature
100
What layer of the sun are sunspots found?
Answer: photosphere
100
Distance that light travels in one year (Approximately 9.5 Trillion Kilometers)
Answer: Light Year
100
Scientists classify galaxies by: a. Size b. Shape c. Age d. Color
Answer: b. Shape
100
Scientists and astronomers believe that the universe will: a. end someday b. expand forever c. eventually shrink d. expand and shrink on a regular basis
Answer: b. Expand Forever
200
The color red represents the color of the __________ stars in the universe
Answer: Coolest
200
What part of the sun rotates the fastest?
Answer: The equator
200
Which of the following shows the sequence of a star's life cycle from its earliest stage to its latest stage? a. white dwarf, main sequence, red giant b. main sequence, red giant, white dwarf c. red giant, white dwarf, main sequence d. main sequence, white dwarf, red giant
Answer: b. Main Sequence, Red Giant, White Dwarf
200
what binds a galaxy together? a. stars b. gravity c. a neutron star d. a globular cluster
Answer: b. gravity
200
According to the Big Bang Theory the universe is about: a. 470 Billion Years Old b. 500 Billion Years Old c. 4.7 Billion Years Old d. 13.7 Billion Years Old
Answer: d. 13.7 Billion Years Old
300
Which of the following statements is true of stars: a. The sun has the greatest apparent magnitude of all stars. b. A star does not change its size or temperature during its life. c. The shortest stage in a star's life cycle is the main sequence. d. When a star dies, none of its material returns to space.
Answer: a. The sun has the greatest apparent magnitude of all stars.
300
What causes solar flares?
Answer: the magnetic disturbance in the area near a sunspot
300
A gigantic explosion in which a massive star collapses and throws its outer layers into space is known as:______________.
Answer: Supernova
300
Scientists think the Milky Way probably is: a. An Irregular Galaxy b. An Elliptical Galaxy c. A Good Brand for Chocolate d. A Spiral Galaxy
Answer: d. A Spiral Galaxy
300
What is larger than a galaxy?
Answer: the universe
400
Light or electromagnetic radiation ranges from long wavelengths to shorter wavelengths and is called the _____.
Answer: Electromagnetic Spectrum
400
What is the measurement unit for the size of stars called?
Answer: solar radius
400
Name of clouds of dust and gas in space that carry tons of energy and they are usually the places where new stars are born: ______________.
Answer: Nebula / Nebulae
400
Many galaxies carry these huge objects, so massive that even light cannot escape. These objects are known as: __________________
Answer: Black Holes
400
Which of the following is most similar to the light year? a.gram b.second c.kilometer d.degrees Celcius
Answer: kilometer
500
The brightness of a star as seen from planet earth is known as: __________________.
Answer: Apparent Magnitude
500
Scientists have determined that the sun will continue to consume hydrogen in its core for another five billion years or so. After the hydrogen is consumed, what will be the primary fuel?
Answer: helium
500
If a star is 6 ly from Earth, how long does it take light from that star to reach Earth?
Answer: 6 years
500
Which of the following is the largest? a. A Main Sequence Star b. A Galaxy c. A Neutron Star d. A Planet
Answer: b. A Galaxy
500
Which of the following statements best describes the structure of the universe? a. Planetary systems are rare. b. Galaxies are spaced evenly apart. c. Objects in space are scattered at random. d. Densely concentrated in clusters with voids in between.
Answer: d. Densely concentrated in clusters with voids in between.