1.
A) because they never run out of energy B) because they use radio waves, which do not pass freely through Earth's atmosphere due to unpredictable weather C) because they use radios to help various telescope's computers communicate with each other D) because they use radio waves, which pass freely through Earth's atmosphere in any weather condition 2.
Hubble Space Telescope ?A) It is a reflecting telescope, and there was a problem with the mirror. B) It is a refracting telescope, and there was problem with the lens. C) It is a reflecting telescope, and there was a problem with the lens. D) It is a refracting telescope, and there was a problem with the mirror. 3.
A) They don't need air. B) They can gather lots data. C) They are retrievable. D) They are inexpensive. 4.
A) Is the Moon habitable? B) Does water exist in the craters of the Moon's poles? C) Can we harvest soil from the Moon? D) Does the Moon have an atmosphere? 5.
A) 2020 B) It's operational now. C) 2005 D) 2000 6.
A) International Space Station B) Skylab C) Mir D) Soyuz 7.
A) all answers are correct B) gathering scientific data C) transmitting radio and television signals D) gathering pictures of Earth's surface 8.
A) Project Apollo B) Project Gemini C) Project Surveyor D) Project Mercury 9.
A) to develop advanced technology that will let NASA send smart spacecraft into the solar system B) to develop technology that will create more jobs on Earth C) to create technology faster than other nations D) to create satellites to spy on other nations 10.
A) China B) Soviet Union C) United States D) Japan 11.
A) A reflecting telescope uses a convex lens to magnify an image, and a refracting telescope uses a mirror. B) There is no difference. C) A refracting telescope uses a mirror, and a reflecting telescope uses a concave lens to magnify an image. D) A refracting telescope uses a convex lens to magnify an image, and a reflecting telescope uses a mirror. 12.
A) their uses B) the type of fuel they use C) the way they are designed D) the parts of space they explore 13.
A) the number of times a wave vibrates per unit of time B) the number of times a wave moves per unit of sound C) the distance waves travel in a certain amount of time D) the distance a line travels in a certain amount of time 14.
A) Mars Climate Orbiter and Polar Lander B) Mars Global Surveyor and Polar Lander C) Sojourner and Pathfinder D) Mars Climate Orbiter and Pathfinder 15.
A) because sound waves can't travel in space, far from Earth B) because sound waves can't travel through empty space C) because there's no such thing as sound in space D) because outer space alters the astronaut's hearing 16.
Galileo explore before it was crushed by its atmosphere?A) Uranus B) Mars C) Saturn D) Jupiter 17.
A) thermal B) conduction C) convection D) radiation 18.
A) It would be cheaper to make, so it would cost less. B) Many countries would chip in, so it would cost less. C) It would be more accurate, bring back more data, and it would be more cost effective. D) It would be reusable, so it would cost less. 19.
A) travel out of the solar system B) be retrieved C) gather data D) go into orbit 20.
Cassini is __________.A) Saturn B) Uranus C) Pluto D) Jupiter
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