Exam Review
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| The charge on an electron, which is one of the prime constituents of an atom, is | Correct Answer: negative.
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| About how many extra electrons would be present on a charged object having an accumulated charge of one (1) couloommmb? | Correct Answer: 6.3 x 10^18
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| When electrical power losses in a circuit are calculated, we can use the relationship I^2R,which is also often referred to as the | Correct Answer: joule heat.
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| The kilowatt-hour is a unit used for which of the following? | Correct Answer: electrical work
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| Electrical elements that are connected in a circuit so that the same current must pass through each one in turn are said to be connected in | Correct Answer: series.
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| A circuit breaker or a fuse is placed in an electrical circuit to | Correct Answer: protect a circuit from carrying too much current.
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| The north pole of a stationary magnet will be attracted to | Correct Answer: a magnetic south pole.
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| Magnetic field lines | Correct Answer: always make complete loops through and around magnets.
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| Moving electric charges create | Correct Answer: electrical resonances.
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| Which of the following would not be considered an asset in providing electrical safety for power tool uses? | Correct Answer: a nongrounded metal case on the tool.
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| The ecliptic is | Correct Answer: the apparent path followed by the Sun on the celestial sphere.
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| Which of the following is a terrestrial planet? | Correct Answer: Mercury
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| What is the name of the largest moon of Neptune? | Correct Answer: Triton
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| Which of the following planets has the highest surface temperature? | Correct Answer: Mercury
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| One of the planets that revolves around the Sun seems to have characteristics that more closely resemble an asteroid than the other planets. Which planet is this? | Correct Answer: Pluto
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| The time interval between two successive conjunctions (either inferior or superior) of a planet with the Sun as observed from Earth is known as the planet's | Correct Answer: synodic period.
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| An ancient theory that Earth was the center of the solar system (or universe)is referred to as the | Correct Answer: geocentric theory.
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| Where is most of the mass of our solar system concentrated? | Correct Answer: in the Sun
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| About how long does the condensation theory suggest that it took for our solar system to form? | Correct Answer: about 100 million y
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| What does statistical analysis suggest about the existance of other planetary systems in the universe? | Correct Answer: It shows that there is a good probability that many exist.
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| One cycle of the precession of Earth's axis of rotation with respect to the fixed stars takes about | Correct Answer: 26,000 years.
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| The prime meridian for determining longitude on Earth's surface has been chosen to run through | Correct Answer: Greenwich, England.
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| The point directly above the head of any observer on Earth's surface is called his or her | Correct Answer: zenith.
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| The month is based on | Correct Answer: the periodic phases of the Moon.
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| The arrangement of streets in a town that run North-South and East-West sets up what type of system? | Correct Answer: a Cartesin coordinate system
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| The angular distance north or south of Earth's equator is a measure of | Correct Answer: latitude
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| A new standard time zone begins as you travel around Earth's equator every | Correct Answer: 15 degrees
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| A line on the surface of Earth where the longitude is always the same is referred to as | Correct Answer: a meridian.
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| The noontime Sun will be directly over the equator of Earth on which day or days of the year? | Correct Answer: the fall and spring equinoxes
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| During what season or seasons of the year will the Sun have a declination of 23.5 degrees North? | Correct Answer: Summer
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| The diameter of Earth's Moon is | Correct Answer: a little over one-fourth the diameter of Earth.
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| Large and small bowl-shaped depressions in the surface of the Moon that are believed to have been caused by impacts of objects from space are called | Correct Answer: craters.
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| The youngest rocks that have been found on the lunar surface suggest that volcanoes on the Moon | Correct Answer: have been inactive for over 3.1 billion years.
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| What is the relationship between the Moon's plane of revolution around Earth and the ecliptic plane on which Earth revolves around the Sun? | Correct Answer: The Moon's plane of rotation is tilted by +/- 5 degrees with respect to the ecliptic.
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| The closest point of approach between the Moon and Earth is called | Correct Answer: perigee.
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| The phase of the Moon that occurs between its first-quarter and full phases is known as | Correct Answer: the waxing gibbous phase.
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| The last-quarter moon will appear on any observer's overhead meridian at | Correct Answer: 6 A.M. local solar time.
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| During what season of the year will the full moon be highest in the sky for an observer in the northern United States? | Correct Answer: winter
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| Where must the Moon be with respect to Earth when a solar eclipse is taking place? | Correct Answer: between Earth and the Sun.
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| The Moon's gravitational attraction affects Earth's oceans by causing | Correct Answer: two high and two low tides daily.
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| The Sun rotates on its own internal axis with a period of about | Correct Answer: 25 days
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| The thin, red, outer layer of the Sun's surface that can be seen only for a few seconds during a solar eclipse is called the | Correct Answer: chromosphere.
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| The measurement of angular distance north or south of the celestial equator on a celestial sphere is referred fo as | Correct Answer: declinaiton.
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| Which of the following units of distance is the largest? | Correct Answer: the parsec.
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| The brightness of a star as seen from Earth is referred to as the star's | Correct Answer: apparent magnitude.
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| A very large star whose surface temperature is several thousand degrees cooler than that of the Sun's photosphere is referred to as | Correct Answer: a red giant.
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| A rapidly rotating neutron star that has been detected on Earth by observing its regular bursts of radio emission is known as | Correct Answer: a pulsar.
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| The mass of a black hole is believed to be concentrated in a very small central region referred to as | Correct Answer: a singularity.
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| Hubble's law expresses a relationship between the distance from Earth to a galaxy and that galaxy's | Correct Answer: radial velocity.
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| We believe that quasars are very distant objects because astronomers have been able to measure their | Correct Answer: large red shifts
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Created by:
malrey3