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| 1 | |
Suppose an extra-solar planet is discovered orbiting a nearby star. The planet is spherical, composed primarily of carbon dioxide (a gas), 10 times larger than Earth, and orbits its star at a distance comparable to 5 AU. What type of planet has been discovered? |
| | A) | Jovian |
| | B) | Terrestrial |
| | C) | Dwarf |
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| 2 | |
Suppose an extra-solar planet is discovered orbiting a nearby star. The planet is spherical, composed primarily of ice, the size of our moon, and orbits its star at a distance comparable to 20 AU. What type of planet has been discovered? |
| | A) | Jovian |
| | B) | Terrestrial |
| | C) | Dwarf |
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| 3 | |
Which answer best describes the conditions on Earth when it first formed? |
| | A) | solid, no oceans |
| | B) | molten, no oceans |
| | C) | solid, oceans, |
| | D) | molten, oceans |
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| 4 | |
How does excess heat from the Earth's early formation reach the surface? |
| | A) | conduction |
| | B) | convection |
| | C) | both a and b |
| | D) | neither a nor b |
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| 5 | |
What would happen to July temperatures in Australia if Earth's rotation axis increased to 25 degrees? |
| | A) | Average temperatures would decrease |
| | B) | Average temperature would increase |
| | C) | Average temperature would stay the same |
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| 6 | |
The moon has what type of obit? |
| | A) | Geocentric |
| | B) | Heliocentric |
| | C) | Neither |
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| 7 | |
Which of the following are pulsating stars used to determine the dimensions of the Universe? |
| | A) | Red dwarfs |
| | B) | Cepheid Variables |
| | C) | Supernovas |
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| 8 | |
What is the "Doppler effect?" |
| | A) | A change in the speed of light as the source moves relative to the observer |
| | B) | A change in the luminosity of light as the source moves relative to the observer |
| | C) | A change in the frequency of light as the source moves relative to the observer |
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| 9 | |
What causes the Sun's heat? |
| | A) | Energy release from nuclear fusion |
| | B) | Energy release from nuclear fission |
| | C) | Energy release from nuclear decay |
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| 10 | |
Which planets are likely to have the strongest gravitational fields? |
| | A) | Terrestrial or rocky |
| | B) | Jovian or gaseous |
| | C) | Dwarf planet |
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| 11 | |
Which planets have more moons? |
| | A) | Terrestrial planets |
| | B) | Jovian planets |
| | C) | Dwarf planets |
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| 12 | |
Which is the correct order for the first six planets in our solar system starting from the Sun? |
| | A) | Mercury, Mars, Earth, Venus, Saturn, Jupiter |
| | B) | Mercury, Venus, Mars, Earth, Jupiter, Saturn |
| | C) | Mercury, Venus, Earth, Mars, Jupiter, Saturn |
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| 13 | |
Why do we observe the Sun rising in the East and setting in the West? |
| | A) | Earth rotates on its axis |
| | B) | The Sun revolves around the Earth |
| | C) | Earth revolves around the Sun |
| | D) | The Sun rotates on its axis |
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| 14 | |
How do we define the length of a year on Earth? |
| | A) | A year is related to the revolution of the Sun around Earth |
| | B) | A year is related to the rotation of Earth on its axis |
| | C) | A year is related to the revolution of Earth around the Sun |
| | D) | A year is related to the rotation of the Sun on its axis |
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| 15 | |
Which of the following features is unique about Earth? |
| | A) | Earth is composed primarily of rocky material |
| | B) | Earth is in orbit around a star |
| | C) | Earth has an atmosphere |
| | D) | Earth has liquid water on its surface |
| | E) | Earth has a moon |
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| 16 | |
Why do the planets orbit the sun and not the Earth? |
| | A) | Earth is not close enough to the center to control the orbits of other planets |
| | B) | Earth is not small enough to produce the kind of energy needed to control the other planets |
| | C) | Earth is not massive enough to have the kind of gravitational force needed to keep planets in orbit around it |
| | D) | All of the above explain why the planets orbit the sun |
| | E) | None of the above explain why the planets orbit the sun |
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| 17 | |
__________ would have the largest number of days in its year because ______? |
| | A) | The Earth; it has water on it which slows it down. |
| | B) | Mercury; it moves very slowly because it so hot. |
| | C) | Neptune; it is farthest away from the sun, and therefore has farther to travel. |
| | D) | Jupiter; it is the largest planet which makes it move faster around the sun. |
| | E) | Venus; it has an atmosphere that is so thick it can hardly move through space. |
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