2.1 getting there: technologies for space...
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Sci 9 2.1 Student Notesfilled in.notebook
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2.1 Getting There: Technologies for Space Transport pg. 408-417)
Challenges of Space Travel• going fast enough to break free of Earth's ____________ (at least __________ km/h).• develop reliable spacecraft that can withstand _____________, small celestial particles and extreme ________________.• keep equipment _____________ in space• transport people _________
Satellites circle the Earth and provide information for: ••••
Robotic space probes have visited all planets except ________.
UNIT E
Developing Rocket Boosters1. 400 BC escaping _________ propelled a model pigeon along a wire.
2. 1st century AD _____________ was used to make rocket propelled arrows.The first small satellite (__________) was launched by the Soviet Union.
The first living thing into space was a small ______. Human space travel was next. (______)
Parts of a Rocket1. _____________________________ rocket, engines, storage tanks, and fins.2. ________ may be liquid O2, gasoline, or liquid H2. This is ignited in a combustion chamber, the gases expand and leave as exhaust.3. _____________ materials for flight including crew cabins, food, air, water, and PEOPLE!
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Rockets continued...Law of Physics: For every action, there is an equal and ____________ reaction.
Example:A balloon with air contains a gas under pressure. When the gas is released, the balloon _________ in the opposite direction.
Reaction (movement)
Action (released gas)
The same movement or __________ is used in a rocket.
The Future of Space Technology1. ______________ engines that use _________ gas instead on chemical fuels.
Advantages Disadvantages• thrust lasts a _______ time• fuel amount is _____________ to one tenth.• in space, a little force over a long time results in a _______ vehicle.
• an extremely _______ thrust is produced
2. ________________ use the sun's emitted electromagnetic energy to cause ______________. The initial proposal is to create them as thin as plastic wrap and 400m2 to increase space travel ________.
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Types of Spacecraft• _____________ transport people and equipment. Must include an internal liveable atmosphere.• ___________________ instruments for robotic exploration.• ___________________ orbiting spacecraft with living and working space. Must include an internal liveable atmosphere.
Next StepsInterplanetary Journey start from the ________ or space station so that gravity would not be an issue.______________________________ (ISS): a joint project between _____ countries.It includes a permanent lab to study, build, and launch ___________.
The total work area is about the size of 3 average ________.
Other InformationThe Apollo Missions led to creating _________ duration space missions.
Further space development includes more space stations and creating ________________ space shuttles.QUESTIONS1. Which was the first country to launch an artificial satellite?
2. Describe the 3 basic parts of a rocket, and draw and label a sketch showing the parts. (see pg. 412).
3. Name 2 alternatives to rocket engines that scientists are studying and 1 advantage for each.
4. Explain what would happen if a rocket's payload were greater than the allowed percentage.
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5. What is the law of physics that propels a rocket forward?
6. Differentiate between a space station, a shuttle and a space probe.
7. What is a satellite and what kinds of information do they provide?
8. What is the only planet that has not yet been visited by a space probe?