© Erin Kathryn 2016 - Mr. Long's Classroom · 2018-09-10 · History of the Telescope 15. When was the first refractor telescope invented? ___ _ 16. ___ made some improvements

$Page 1: © Erin Kathryn 2016 - Mr. Long's Classroom · 2018-09-10 · History of the Telescope 15. When was the first refractor telescope invented? _____ _____ 16. _____ made some improvements$
© Erin Kathryn 2016

Name: ___________________________________ Date: ____________

Telescopes Internet Scavenger Hunt WebQuest

Directions: Click on the link below to answer the following questions. http://www.ducksters.com/science/physics/telescopes.php

A __________________ is an instrument used to see objects that are far away. Telescopes are often used to view __________________________ ____________ . Some of the same optical technology that is used in telescopes is also used to make ________________________________.

Important properties of Telescopes

1. The two most important properties of a telescope are: • _____________________________________ • _____________________________________

2. Light gathering ability - The better a telescope can gather _________, the better you will be able to see _______________________________ _____________________ . This feature is usually determined by the size of the _______________________ of the telescope. The larger the aperture, the more light the telescope can gather.

3. Magnification - The ______________________ of a telescope describes how much _________________ the telescope can make objects appear.

Lenses and Mirrors

4. There are ____________ main types of telescopes.

5. One type uses lenses to _______________ the image. Telescopes that use lenses are called ___________________________________.


http://www.ducksters.com/science/physics/telescopes.php

6. The other type uses mirrors to _______________________________ __________. These telescopes are called ________________________ _________________.

Refracting Telescopes

7. __________________________________ use lenses to ___________ the light to a specific focal point such that the object will be magnified to the viewer.

8. The basic refracting telescope has __________________________.

9. The first lens is called the __________________ lens. This lens is a ________________ lens that bends the incoming light rays to a ________________________ within the telescope.

10. The second lens is called the _____________________. This lens takes the light from the focal point and ________________ it out across the retina of your eye. This makes the object ______________________ ____________________ than it really is.

Reflecting Telescopes

11. ___________________ telescopes use __________________ instead of lenses to focus the light.

12. A _______________________________ is used to gather light and reflect it back to a focal point.

13. In order to get the _______________ out of the telescope, another mirror is used to direct the light ________________________________.

14. Who designed the original reflecting telescope?

__________________________________________________________

__________________________________________________________


History of the Telescope

15. When was the first refractor telescope invented?

__________________________________________________________

__________________________________________________________

16. ________________ made some improvements and first used the telescope for ___________________.

17. The _____________________ was further improved by astronomer Johannes Kepler around 1611. Kepler used a ______________________ _________________________________. Although this made the image appear ___________________________, it improved the usability of the telescope.

The hubble Space Telescope

18. One of the most famous telescopes in the world today is the ____________________________________________.

19. This telescope was put into orbit around the ______________ in _________________ by the ______________________________.

20. Being outside the Earth's atmosphere allows the Hubble to view outer space without ______________________________________. This has enabled it to take some amazing pictures of ________________ _________________________________________.

Fun facts About Telescopes

21. Name 3 fun facts about telescopes. • ___________________________________________________

___________________________________________________ • ___________________________________________________

___________________________________________________ • ___________________________________________________

___________________________________________________


22. Look at the two illustrations above. What differences do you see?

23. The dusty old telescope on Mr. Long’s desk…what type of telescope is it? How do you know?

Documents

© Erin Kathryn 2016 - Mr. Long's Classroom · 2018-09-10 · History of the Telescope 15. When was the first refractor telescope invented? _____ _____ 16. _____ made some improvements

© Erin Kathryn 2016 - Mr. Long's Classroom · 2018-09-10 · History of the Telescope 15. When was the first refractor telescope invented? ___ _ 16. ___ made some improvements