1. Rockets and Satellites
EQ: How do rockets travel in space?

2. EQ: How do rockets travel in space?
How Rockets Work
A rocket moves forward when gas expelled from the rear of a rocket pushes it in the opposite direction
Basic law of physics
For every force, or action, there is an equal and opposite force or reaction.
EQ: How do rockets travel in space?

3. EQ: How do rockets travel in space?
Rockets in Space
A rocket moves forward when gases expelled from the rear of the rocket push it in the opposite direction
In a rocket, fuel is burned to make a hot gas
This hot gas is forced out of narrow nozzles in the back of the rocket, propelling the rocket forward
EQ: How do rockets travel in space?

4. Multistage Rockets
First rockets were developed by the Chinese in the year 1000
They used gunpowder for fuel
Gunpowder burned quickly – so there was not enough to get the rocket out of the atmosphere
Gunpowder is extremely explosive
EQ: How do rockets travel in space?

5. EQ: How do rockets travel in space?
Robert H. Goddard
American Scientist
In the 1920s he experimented with fuels and found a liquid fuel that provided continuous power
EQ: How do rockets travel in space?

6. Konstantin Tsiolkovsky
Russian Scientist
Developed a rocket that breaks apart as fuel is used
Once a stage uses up its fuel, the container drops off and the next stage ignites
EQ: How do rockets travel in space?

7. EQ: How do rockets travel in space?
Saturn V
Carried astronauts to the moon
Developed in 1950s and 1960s
Multistage rocket
EQ: How do rockets travel in space?

8. Artificial Satellites
October 4, 1957 – Soviet Union successfully launched a satellite into orbit around the earth
Satellite – a natural or artificial object that revolves around an object in space
The name of the satellite was Sputnik 1
EQ: How do rockets travel in space?

9. Yuri Gagarin First person in space Orbited earth on April 12, 1961
EQ: How do rockets travel in space?

10. Geosynchronous Orbits
Orbits that hold satellites that revolve around the earth at the same rate the Earth rotates
Used to relay tv signals and map weather patterns
NASA began development of new communication satellites in 1960, based on the hypothesis that geosynchronous satellites, which orbit Earth 22,300 miles (35,900 km) above the ground, offered the best location because the high orbit allowed the satellites' orbital speed to match the rotation speed of Earth and therefore remain essentially stable over the same spot.
EQ: How do rockets travel in space?

11. EQ: How do rockets travel in space?
Space Station
Large space satellite in which people live for long periods of time
International Space Station
Built by 16 countries
EQ: How do rockets travel in space?

12. Space Shuttle
Reusable space rocket used to “shuttle” back and forth between earth and space to launch astronauts and equipment into space
EQ: How do rockets travel in space?

13. Class Work and Homework
Fill In
What did I learn
Confused
Say
Read pages J 35 – J38
Review and Reinforce worksheet
EQ: How do rockets travel in space?