Please read pages 128 - 131 Define rockets Beginning, important dates, and important people/country, and how they work. - PowerPoint PPT Presentation

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Please read pages 128 - 131 Define rockets Beginning, important dates, and important people/country, and how they work.

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Title: ROCKET SCIENCE Author: Campisi Family Last modified by: support Created Date: 11/25/2001 11:29:36 PM Document presentation format: On-screen Show – PowerPoint PPT presentation

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Title: Please read pages 128 - 131 Define rockets Beginning, important dates, and important people/country, and how they work.


1
Please read pages 128 - 131 Define
rocketsBeginning, important dates, and
important people/country, and how they work.
Work
2
  • Use the words and/or phrases on the next page, to
    complete your notes. We will check it together
    during discussion.

3
Please read pages 128 - 131 Use Word bank to
complete notes
  • Chinese
  • Father of Rocket Theory
  • Action
  • Suborbital velocity
  • Rocket experiments
  • Father of modern Rocketry
  • Thrust
  • Orbital velocity
  • Machines that use escaping gases to move
  • National Aeronautics and Space Administration
  • For every action there is an equal and opposite
    reaction
  • Rockets
  • Third Law of Motion
  • Fireworks and weapons
  • Reaction
  • Robert Goddard
  • Escape velocity

4
Beginning of Rocket Science
  • Rockets are machines that use escaping gas to
    move
  • Tsiolkovsky (1900) Russian HS teacher
  • Inspired by Jules Verne (science fiction
    writer)
  • Explained how rockets work
  • Known as Father of Rocket Theory

5
Robert Goddard (1915 -1941) American Physicist
  • Conducted rocket experiments
  • Arose attention of US military during WWII
  • Known as Father of Modern Rocketry

6
  • First Rockets invented by Chinese over 800 years
    ago.
  • Used for fire works and weapons.
  • Germans developed rocket bombs during WWII

7
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8
  • At end of WWII US rocket research took off
  • Cold War, US was frightened that Soviet Union
    would be superior to us in the arms race.
  • NASA was formed July 29, 1958 (National
    Aeronautics and Space Administration)

9
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10
  • Rockets work on a simple principle known as
  • Newtons Third Law of Motion
  • For every action there is an equal and
    opposite reaction.

11
  • EXAMPLE Fill a balloon with air and let it go.
  • Action - air rushing backward from balloon.
  • Reaction - balloon moves forward

12
Rocket Engines
  • Thrust is the force that pushes the rocket
    forward
  • Fuel is burned inside a rocket engine (solid or
    liquid)
  • Fuel burns, gasses expand, pressure is created
    inside engine.

13
Rocket Engines
  • Action gas pushes downward
  • Reaction rocket moves upward

14
Reaction
Oxygen Fuel Fuel burned here
Action
Hot Gases
15
  • Oxygen is needed to burn fuel
  • No Oxygen in space. Rocket must carry its own
    supply.
  • In space rockets move without fuel
  • Fuel only needed to change direction

16
  • Orbital velocity (8km/s) speed direction a
    rocket must have to orbit the earth
  • Suborbital (less than 8km/s) can fall back to
    earth
  • Escape velocity (11km/s) speed direction a
    rocket must travel to break a planets
    gravitational pull
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