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6 Sci Ch 14 notes
6 Sci Ch 14 notes - Exporing Space
| Question | Answer |
|---|---|
| Carry energy through space & matter | electromagnetic waves |
| this type of radiation includes radio waves, visible light, gamma rays, x rays, ultraviolet light, infrared waves and microwaves | electromagnetic radiation |
| electromagnetic radiation arranged by wavelength | electromagnetic spectrum |
| forms of electromagnetic radiation differ in their ____? | frequency |
| the number of wave crests that pass a given point per unit of time. | frequency |
| The shorter the wavelength, the higher the frequency? (true or false) | true |
| All electromagnetic waves travel a the speed of ____ or 300,000 km/s ? | light |
| uses light to produce magnified images | Optical telescopes |
| which telescopes have convex lenses? | refracting |
| which telescopes use concave mirror? | reflecting |
| Optical telescopes are often located in buildings called_____, which often have roofs that can be opened for viewing. | observatories |
| The Hubble Space Telescope is located where? | outside earth's atmosphere |
| In the Hubble Space telescope a mistake was made in shaping the largest? | mirror |
| Once the mistaken shaped mirror was repaired in 1999, the Hubble Space Telescope sent back images of a large cluster of ____? | galaxies |
| computer helps correct poor images (adaptive or active optics) | active optics |
| laser relays information to computer to adjust telescope's mirror and make images clearer (adaptive or active optics) | adaptive optics |
| which telescope studies radio waves that travel through space? | radio |
| Because radio waves pass freely through Earth's atmosphere, radio telescopes are usually useful ____ hours a day. | 24 |
| Scientists use information from radio waves to detect objects in space, map the ____ and look for signs of life on other planets. | universe |
| Early space _____ allowed astronomers to study space in ways not possible using telescopes. | missions |
| special motors that don't require air are called? | rockets |
| which rockets can not be stopped once they are ignited? | solid-propellant |
| which rockets can be reignited after they are shut down? | liquid-propellant |
| any object that revolves around another object in an orbit. | satellite |
| curved path | orbit |
| In 1957 the former Soviet Union launched it's first artificial satellite called? | Sputnik |
| How many communication, scientific and weather satellites orbit the Earth today? | thousands |
| What gathers information and transmits information back to earth? | probe |
| Voyager 1 and Voyager 2 are exploring space beyond the ____? | solar system |
| Which was the first space probe to travel through an asteroid belt | Pioneer 10 |
| Which probe was launched in 1989 and studied Jupiter along with it's two moons, Europa & Io. | Galileo |
| Galileo gathered information about Jupiter's composition, temperature & pressure (true or false) | true |
| Studies of Europa indicated a possible ocean of ____ and the possible presence of life on Jupiter. | water |
| The US began a race for the ____ in the 1960's? | moon |
| First Step in the program to reach the Moon began with Project _____? | Mercury |
| In 1961,_____ became the first US citizen in space. | Alan Shepard |
| In 1962, _____ became the first US citizen to orbit the Earth. | John Glenn |
| The Second step in the Moon race involved Project ___? | Gemini |
| During Project Gemini, teams of astronauts met and connected with what? | orbiting spacecraft |
| Project Gemini also studied the effects of space travel on _____? | humans |
| Unoccupied space ____ also studied the Moon during Projects Mercury and Gemini. | probes |
| The final step in the US program to reach the Moon is called Project ____? | Apollo |
| On July 20, 1969, ____ landed on the Moon's surface, and Neil Armstrong and Edwin Aldrin became the first two people to set foot on the Moon. | Apollo II |
| How many lunar landings resulted from Project Apollo, which ended in 1972. | 6 |
| reusable spacecraft for transporting people, satellites, and other materials to and from space. | space shuttle |
| space shuttles are launched standing on ___? | end |
| space shuttles glide back to earth like an ___? | airplane |
| permanent places in space for humans to live and work | space station |
| US _____ orbited Earth from 1973-1979 | Skylab |
| At the Skylab, crews performed experiments and collected data on the effects of living in _____? | space |
| Skylab eventually abandoned, fell out of ___ and burned up as it entered Earth's atmosphere. | space/orbit |
| Former Soviet Union ____ housed one cosmonaut for more than one year at a time. | Mir |
| Crew from the former Soviet Union and American crews worked (separate or together) aboard the Mir. (True or false) | together |
| Crews from the former Soviet Union spent (more or less) time aboard Mir than crews from any other country. | more |
Created by:
pkabbes