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WorksheetsSc E 5 2
Total questions: 21
Worksheet time: 16mins
The points labeled on the chart below represent the approximate size of Earth, the Milky Way, the Moon, and the Sun. The approximate size of the Solar System is also shown.
Which point on the chart best represents the approximate size of the Sun?
W
X
Y
Z
Which statement is true regarding measuring distances in space?
An astronomical unit (AU) is larger than a light year.
The time taken for light to travel through our Solar System is longer than that for light to travel through the Milky Way.
The Earth is one astronomical unit (AU) from the Sun.
All of the terrestrial planets are more than one astronomical unit (AU) from the Sun.
The sun is much larger than the moon. However, as viewed from Earth, the sun and moon appear to be the same size. Why do the sun and moon appear to be the same size when viewed from Earth?
The moon is much hotter than the sun.
The moon is much denser than the sun.
The moon is much brighter than the sun.
The moon is much closer to Earth than the sun.
Gloria is at the observatory and is examining a newly discovered star through a powerful telescope. She wants to find out how bright the star actually is. What information does she need to calculate the absolute magnitude of a star?
Color and temperature of the star
Color and composition of the star
Apparent magnitude and distance from Earth of the star
Color and distance from Earth of the star
The diameter of Saturn is nearly ten times that of Earth. However, the density of Saturn is much less than that of Earth. What is the reason for this?
Earth is father from the sun than Saturn.
Saturn has a ring system.
Earth is hotter than Saturn.
Saturn is a gaseous planet.
Jill is creating a scale model of the Solar System. She uses a basketball to represent the Sun. Which of the following should she use to most accurately represent the size of Earth?
Tennis ball
Ping pong ball
Marble
Grain of sand
In 1995, the Hubble Space Telescope photographed a tiny spot in the sky for a period of ten days; 342 exposures were placed together to create an image known as the Hubble Deep Field. Although the sample is tiny, it is representative of the universe, which looks similar in all directions. The image below shows a collection of billions of stars. The Hubble Deep Field shows at least 3,000 groups of these stars.
Moon
Galaxy
Universe
Solar system
One physical property of a star is apparent magnitude. Which of the following is used in determining the apparent magnitude of a star?
The constellation the star is in.
The distance the star is from Earth.
The number of times the star rotates.
The number of prominences the star makes.
An astronomer uses a telescope to observe a star. She observes that the color of this star is similar to the color of the sun. Therefore, she infers that the star and the sun have similar sizes and surface temperature. Using this information, what can the astronomer conclude about the star?
The star is a white dwarf.
The star is medium sized.
The star is hotter than most other stars in our galaxy.
The star is brighter than most other stars in our galaxy.
The Sun's energy and composition is provided by which of the following?
The burning of fossil fuels within the Sun.
Solar power that produces electricity in the Sun.
The Sun's magnetic field.
The fusion of hydrogen into helium.
Our solar system consists of eight planets. Each planet is classified as either a terrestrial planet or a gas giant planet. Which is a difference between these two types of planets?
Terrestrial planets are larger than gas giant planets.
Gas giant planets are denser than terrestrial planets.
Terrestrial planets have thinner atmospheres than gas giant planets.
Gas giant planets have rocker crusts than terrestrial planets.
Linda examined the sizes of several different stars. She listed them in order from smallest to largest. Which of the following stars would Linda list first?
Polaris, 30 solar radii
Aldebaran, 44.2 solar radii
Sirius B,. 0.008 solar radius
Barnard's Star, 0.15 solar radius
Space exploration has advanced our knowledge of the universe.
Which space journey would take the longest.
A journey from Earth to the sun.
A journey from Earth to the moon.
A journey from Earth to a star in the constellation Centaurus.
A journey from Earth to the farthest planet in our solar system.
Natasha examined a table that lists the characteristics of four stars.
Which star would appear the dimmest from Earth's surface?
Star A
Star B
Star C
Star D
The graph show the relationship between absolute magnitude and the color in stars.
Which of the following conclusion can be drawn based on the graph.
Absolute magnitude is not related to the color of a star.
Blue stars are farther from Earth than red stars.
Blue stars are generally more luminous than red stars.
A blue star will appear brighter from Earth's surface than a red star.
Which of the following statements best relates a star's color to its surface temperature?
A blue star has a relatively low temperature.
A red star has a relatively high temperature.
A blue-white star has a relatively low temperature.
A yellow star has a relatively low temperature.
The table summarizes the number of stars in some star systems and gives examples of each type.
A scientist examines a star system that is made up of two pairs of stars. What type of system is the scientist examining?
Single
Binary
Triple
Quadruple
Which of the following pairs of terms directly relates to the actual brightness of a star?
Absolute magnitude and luminosity.
Apparent magnitude and luminosity.
Size and luminosity.
Absolute magnitude and apparent magnitude.
Which of the following units is used to express the size of stars?
Kilometer
Light-year
Solar Radius
Astronomical unit
The sun is made up of different elements. Which element makes up more than 70 percent of the sun?
Carbon
Helium
Hydrogen
Oxygen
Which of these processes is defined as the joining of two atomic nuclei to create a new nucleus?
Nuclear fission
Nuclear fusion
Particle radiation
Nuclear radiation
