8. Which of the following can not be detected by modern telescopes? A. radio waves B. heat waves (infrared) C. light waves D.

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1 7. Which is not an advantage of the Hubble Space Telescope? A. It is not effected by weather B. It is not effected by pollution C. It is not effected by light. D. It is closer to the stars 8. Which of the following can not be detected by modern telescopes? A. radio waves B. heat waves (infrared) C. light waves D. television waves 9. When several small radio telescopes are spread out over large distances and combined to achieve greater power it is called A. radio telescope B. infrared telescope C. interferometry D. intertelevision towers 10. Optical telescopes are called collectors A. radio wave B. infrared wave C. light wave D. television wave 11. Which of the following is not an advantage of using a radio telescope? A. They are not effected by weather B. They can operate in a school classroom C. They are not effected by light. D. They can be used to find the composition of the stars

2 Hwk #E6 Name: Date: 1. A is the name given to human-made, unmanned objects sent into space for the purpose of observing Earth. A. rocket B. satellite C. space station D. moon 2. The system that uses information from a network of 24 satellites circling our planet to locate accurate positions on Earth is called the A. Aurora System B. Locator Series C. Global Positioning System D. Earth Oriented Satellite 3. What is the fundamental law of physics on which the science of rocketry relies? A. opposites attract B. a negative force will repel C. for every action there is an equal and opposite reaction D. equal forces will always add together 4. What is one of the main problems affecting the hearts of astronauts who spend long periods of time in microgravity? A. They experience severe heartburn. B. Their excitement at space travel causes their hearts to beat faster. C. Their hearts shrink because astronauts don't need to work hard in space. D. The heart muscles shrink, because hearts don't have to work as hard in microgravity 5. If an astronaut is in space for a great length of time, why is it essential that he or she exercise regularly and strenuously? 6. List and describe three things a space suit must provide for an astronaut who is outside the spacecraft. 59

3 Use the following information to answer the next two questions 7. Telescopes that use only lenses to focus light are called A. solar B. infrared C. reflecting D. refracting 8. Reflecting telescopes don't use lenses to focus light. Instead they use large curved A. mirrors B. metal C. transparent glass D. crystals 9. Sketch and label the main parts of a reflecting telescope. 10. What are two advantages that the Hubble Space Telescope has over ground-based telescopes? 11. Describe two advantages that a radio telescope has over an optical telescope. 60

4 Use the following information to answer question 12. Objects in space produce a variety of information in the form of signals of varying wavelengths. Many of these are invisible to the unaided eye, but provide important information on the objects that produce the radiation. This radiation can come in a number of forms, including visible light, X-rays, infrared, radio, and gamma radiation. 12. The name we give for this range of radiation is the A. spectrum B. electromagnetic spectrum C. Zenith D. radioactive spectrum 13. Telescopes that monitor energy with the longest wavelengths and do not need visible light or clear skies to operate are called telescopes. A. reflecting B. refracting C. invisible D. radio 14. The technique for measuring distances based on the geometry of a triangle is called A. triangulation B. astrolabe C. calculus D. Doppler shift 15. What is the main reason we can see more stars with a telescope than with the unaided eye? A. People can't see at night when the stars are out. B. The human eye is not designed to focus at night. C. There are more things visible under the light of the Sun in the daytime. D. The unaided eye can't concentrate the small amounts of light coming from distant stars. 16. The Canadian-made robotic manipulator arm, Canadarm 1, designed for use on the space shuttle is used primarily for A. picture taking in space B. retrieving and repairing damaged satellites C. propulsion and maneuvering D. zero gravity studies in space 17. The new mobile manipulator arm designed specifically for the International Space Station is called A. the Canadian Robotic Arm B. the Flying Elbow C. Anik Il D. Canadarm What advantage does the newly designed manipulator arm have over the old design? A. It is shorter. B. It can be controlled from inside a spacecraft. C. It can reach around corners and move around the International Space Station. D. It has a robotic "hand" at the end of the arm. 19. Canada launched a satellite in 1972 making it the 1st nation to use a satellite for... A. GPS locator beacons B. finding natural resources C. broadcasting television signals D. military use 61

5 20. The 1st Canadian to go into space was... A. Sir Edward Sabine B. Chris Hadfield C. Robert Thirsk D. Marc Garneau 21. Probably the most famous contribution to the space exploration program is the Canadarm. It was designed to be deployed and used on the shuttle missions and is a permanent part of the International Space Station. It made its debut in space on the shuttle Columbia in... A B C D Although neutral hydrogen (which makes up a large bulk of matter in space) emits no light, it does emit energy at a specific wavelength- Astronomers are able to map out this neutral hydrogen in our Milky Way galaxy by using these type of telescopes... A. radio telescopes B. infrared telescopes C. refracting telescopes D. reflecting telescopes 23. If you have a baseline and know the angles to an object - an unknown distance away - you can accurately determine its actual distance away by using this method... A. trigonometry B. interferometry C. triangulation D. base ten math 24. The type of telescope that uses mirror is a... A. reflecting B. refracting C. complex D. compound 25. All of the following are hazards of living in space, EXCEPT... A. cosmic rays and solar radiation B. Psychological challenges to confinement C. The body effects of microgravity D. Food consumption and exercise 26. Satellites are used for numerous purposes. A 'natural' satellite is any... A. thing flying into space from the Earth B. small body orbiting a larger body C. large object that is put into orbit with rockets D. object that communicates information back to Earth 27. GPS satellites enable you to find out your exact position on the Earth at any time. 24 GPS satellite are orbiting the Earth at all times. To use the GPS system you need to get a signal from... A. 2 of them B. 3 of them C. 4 of them D. 6 of them 28. Satellites transmit non-stop information for use in all of the following except A. communication B. navigation C. strength of earth quakes D. weather forecasting 29. Canadian Achievements in Space include: 1. 1st Female Astronaut 2. 1st Magnetic Observatory 3. 1St Canadian to walk in Space 4. 1st Canadian in Space Match each Canadian to their achievement Roberta Bondar Marc Garneau Sir Edward Sabine Chris Hadfield 62

6 30. Using the triangulation method, calculate (to the nearest tenth of a meter) the distance (in meters) across the river. Scale of drawing: 1cm = 15m The distance is 31. Which of the following coordinates correspond to a star that is in the northwest sector of the sky and about halfway up between the horizon and the point directly above the observer's head? A. an azimuth of 45 and altitude of 45 B. an azimuth of 315 and altitude of 45 C. an azimuth of 45 and altitude of 15 D. an azimuth of 315 and altitude of is a method of measuring distances to objects in space indirectly. A. triangulation B. Azimuth C. Zenith D. Telescopes 33. True or False (Make the false statements true) a) : Among the environmental hazards in space are cosmic rays, solar radiation, meteoroids, and temperature extremes. b) : One of the dangers of prolonged weightlessness in space is the contraction of bones due to increased pressure during walking and lifting c) : The Global Positioning System was designed to help astronomers track the position of satellites in space d) Refracting telescopes use a large mirror to gather and focus light. e) : Radio telescopes can give astronomers valuable information about stars and galaxies and are not affected by light levels or atmospheric conditions such as clouds or pollution 63

7 34. Using triangulation, determine the distance across a river if the Baseline used is 70 m and Angle A (on the right) is 50 and Angle B (on the left) is 65 a) Draw a diagram of the set-up. 1 cm = 10 m b) The distance across the river is M. 35. Indicate the location of the star in the illustration if the coordinates of the star are: Azimuth = 290, Altitude = 65 64

8 36. Find your position on the map using the table below Satellite Distance to GPS Receiver km km NORTHWEST TERRITORIES Pacific Ocean /~ kilometres 65