Astronomy Final
99 Questions I 61 Attempts I Created By kamica 1262 days agoAstronomy final exam study
Question Excerpt From Astronomy Final
| Q.1) | If you have a 100-watt light bulb, how much energy does it use each minute? |
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| Q.2) | If a material is highly opaque, then it |
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| Q.3) | When light reflects off an object, what is the relation between the angle of incidence and the angle of reflection? |
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| Q.4) | If a material is transparent, then it |
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| Q.5) | Grass (that is healthy) looks green because |
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| Q.6) | Everything looks red through a red filter because |
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| Q.7) | Which of the following cannot be described by a field? |
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| Q.8) | Our solar system is located in the center of the Milky Way Galaxy |
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| Q.9) | The solar system contains about 100 billion stars |
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| Q.10) | A typical supercluster contains no more than about 10,000 stars |
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| Q.11) | One light-year is about 10 trillion kilometers |
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| Q.12) | In the grapefruit model of the solar system, it would take a few minutes to walk from the Sun to the inner edge of the Kufper Belt (Pluto) |
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| Q.13) | The observable universe is the same size today as it was a few billion years ago. |
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| Q.14) | The Milky Way is moving further away from most other galaxies in the universe |
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| Q.15) | No galaxies existed before the Big Bang |
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| Q.16) | Voyager 2 should reach the nearest stars (besides the Sun) in about 500 years |
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| Q.17) | Earth is always precisely 1 AU from the sun. |
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| Q.18) | What do we mean when we say that the universe is expanding? |
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| Q.19) | The age of the universe is |
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| Q.20) | How are galaxies important to our existence? |
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| Q.21) | Earth is made mostly of metals and rocks. Where did this material come from? |
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| Q.22) | What is nuclear fusion? |
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| Q.23) | What is the meaning of the word cosmos? |
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| Q.24) | Which of the following has your "address" in the correct order? |
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| Q.25) | About where is our solar system within the Milky Way Galaxy? |
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| Q.26) | Roughly how many stars are in the Milky Way Galaxy? |
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| Q.27) | Modern telescopes are capable of seeing bright galaxies up to about |
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| Q.28) | Suppose we imagine the Sun to be about the size of a grapefruit. How big of an area would the orbits of the nine planets of the solar system cover? |
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| Q.29) | In South Africa, it's usually quite warm around the time of the winter solstice and quite cool around the time of the summer solstice |
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| Q.30) | Columbus was the first person to discover that Earth is round |
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| Q.31) | You can find the tilt of Earth's axis by measuring the angle between your horizon and the North Star |
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| Q.32) | The Milky Way can be seen only from the Northern Hemisphere |
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| Q.33) | The seasons on Earth are caused by its elliptical orbit from the Sun |
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| Q.34) | At midnight it is sometimes possible to observe the crescent Moon on the meridian |
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| Q.35) | It is possible to see the third-quarter Moon near the western horizon at sunrise |
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| Q.36) | It is possible to see the full Moon rising just before sunrise |
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| Q.37) | If you lived on the Moon, you'd see full Earth when we see new Moon. |
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| Q.38) | It is possible to view the Moon in first-quarter phase the day after a total lunar eclipse |
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| Q.39) | The Moon and the Sun are approximately the same angular size |
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| Q.40) | A solar eclipse occurs only when the Moon is new |
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| Q.41) | A lunar eclipse occurs only when the Moon is new |
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| Q.42) | Speed and velocity are the same thing |
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| Q.43) | The Moon is constantly falling toward Earth |
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| Q.44) | If you are driving at 30 miles per hour and increase your speed to 60 miles per hour, you quadruple your kinetic energy |
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| Q.45) | If you double the mass of fusion material in a hydrogen bomb, you quadruple the amount of energy generated |
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| Q.46) | When energy is converted from one form to another, a tiny amount is inevitably lost |
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| Q.47) | Kepler deduced his laws of planetary motion once Newton had published his universal law gravitation. |
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| Q.48) | The center of mass for Earth orbiting the Sun lies inside the Sun |
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| Q.49) | There is no gravity in space |
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| Q.50) | Doubling the distance between two objects halves the gravitational force between them |
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| Q.51) | The escape velocity from Earth is greater for larger rockets than for small ones |
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| Q.52) | Tidal friction caused by Earth's stretching from the Moon's gravity is gradually slowing down the rotation of Earth |
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| Q.53) | The Moon is slowly moving away from Earth |
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| Q.54) | Which of the following is an example in which you are traveling at constant speed but not at constant velocity? |
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| Q.55) | What is the acceleration of gravity of Earth? |
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| Q.56) | If you drop a rock from a great height, about how fast will it be falling after 5 seconds, neglecting air resistance? |
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| Q.57) | Momentum is defined as |
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| Q.58) | If an object's velocity is doubled, the momentum is |
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| Q.59) | As long as an object is not gaining or losing mass, a net force on the object will cause a change in |
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| Q.60) | If you mass is 60kg on Earth, what would your mass be on the Moon? |
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| Q.61) | In which of the following cases would you feel weightless? |
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| Q.62) | You are standing on a scale in an elevator. Suddenly you notice your weight decreases. What do you conclude? |
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| Q.63) | What would happen if the Space Shuttle were launched with a speed greater than Earth's escape velocity? |
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| Q.64) | Suppose an object is moving in a straight line at 50mi/hr. According to newton's first law of motion, the object will |
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| Q.65) | Which of the following statements is not one of Newton's laws of motion? |
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| Q.66) | Newton's second law of motion tells us that the net force applied to an object equals its |
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| Q.67) | How does the Space Shuttle take off? |
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| Q.68) | The movement of a pool ball, after being struck by a cue, is an example of |
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| Q.69) | The fact that the Voyager spacecraft continue to speed out of the solar system, even though its rockets have no fuel, is an example of |
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| Q.70) | Energy and power are different words for the same thing |
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| Q.71) | Process of science: I am doing science when I already know the answer to my scientific question and I am searching for evidence in the natural world strictly to support what I know |
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| Q.72) | Grass is green because it absorbs green light, reflecting all other colors |
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| Q.73) | The shorter the wavelength of light, the higher its frequency |
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| Q.74) | The greater the wavelength of light, the greater its energy |
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| Q.75) | X rays, because they have more energy, travel through space faster than visible light |
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| Q.76) | X rays are always more intense than radio waves |
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| Q.77) | You are currently emitting electromagnetic waves |
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| Q.78) | There are more atoms in a glass of water than stars in the observable universe |
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| Q.79) | Atomic nuclei consist of photons and electrons |
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| Q.80) | Electrons orbit an atomic nucleus like planets orbit the Sun |
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| Q.81) | The atomic nuclei of the same element always have the same number of protons |
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| Q.82) | The atomic nuclei of the same elements always have the same number of neutrons |
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| Q.83) | The energy levels for electrons vary from one element to another |
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| Q.84) | The energy levels of an element and its ion are the same |
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| Q.85) | Lines of a particular element appear at the same wavelength in both emission and absorption line spectra |
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| Q.86) | Any object moving relative to Earth will have a Doppler shift |
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| Q.87) | Emission lines from different ionization states of the same element appear in the same place in the spectrum |
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| Q.88) | We see each other in the classroom right now because we |
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| Q.89) | Without telescopes or other aid, we can look up and see the Moon in the night sky because it |
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| Q.90) | How many atoms fit across the period at the end of this sentence? |
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| Q.91) | The frequency of a wave is |
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| Q.92) | The wavelength of a wave is |
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| Q.93) | How are wavelength, frequency, and energy related for photons of light? |
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| Q.94) | From lowest energy to highest energy, which of the following correctly orders the different categories of electromagnetic radiation? |
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| Q.95) | From shortest to longest wavelength, which of the following correctly orders the different categories of electromagnetic radiation? |
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| Q.96) | Which of the following statements about X rays and radio waves is not true? |
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| Q.97) | Which of the following statements about X rays and radio waves is not true? |
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| Q.98) | Which is hotter? |
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| Q.99) | What would happen inside the sun if a slight rise in core temperature led to a rapid rise in fusion energy? |
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