click below
click below
Normal Size Small Size show me how
Nativity- Space
Chapter 13 - Exploring Space
| Question | Answer |
|---|---|
| rocket | is a device that expels in one direction to move in the oppsite direction |
| thrust | the reaction force that propels a rocket forward |
| velocity | is speed in a given direction |
| orbital velocity | is the velocity a rocket must achieve to establish an orbit around Earth. |
| escape velocity | is the velocity a rocket must reach to fly beyond a plant's gravtational pull. |
| satellite | is an object that revolves around another object in space. |
| space station | is a large artificial satellite on which people can live and work for long periods. |
| space shuttle | is a spacecraft that can carry a crew into orbit,return to Earth, and then be reused for the same purpose. |
| space probe | is a spacecraft that carries scientific instruments that can collect data, but has no human crew. |
| rover | is a probe that is a small robot. |
| vacuum | is a place that is empty of all matter. |
| microgravity | is a feeling that you get when you are in orbit called weightlessness. |
| space spinoff | is an item that has uses on Earth but was originally developed for the use in space. |
| remote sensing | is a collection of information about earth and other objects in space without being in direct contact. |
| geostationary orbit | is a satellite that orbits Earth above the equator at the same rate as Earth rotates and thus stays over the same place on earth al the time. |
| How and where were rockets developed? | rocket tech. originated in china hundreds of years ago and gradually spread to other parts of the world |
| How does a rocket work? | a rocket moves forward when gases shooting out the back of the rocket push it in the opposite direction |
| Newton's ____________ law of motion demonstrates the motion of a rocket | 3rd; every force has an equal and opposite force or reaction |
| three types of rocket fuel | solid, liquid, ions |
| what is the main advantage of a multistage rocket? | the total weight of the rocket is greatly reduced as it rises |
| What was the space race? | it began in 1957 when the soviets launched Sputnik I into orbit |
| What does NASA stand for? | National Aeronautics and Space Administration |
| 1st human in space | Yuri Gagarin |
| Who was Wernher von Braun? | he was a german scientist who designed the V2 rocket used during WWII; after the war he came to america and helped our space program accopmlish lift off |
| 1st American in space | Alan Shepard |
| 1st american to orbit | John Glenn |
| What was the Apollo Program? | the american effort to land astronauts on the moon |
| date of first moon landing and astronauts aboard | July 20, 1969; Neil Armstrong and Buzz Aldrin |
| Where did the Eagle land on the moon? | Sea of Tranquility |
| What did scientists learn from analyzing moon rocks? | some rocks are the same minerals as on Earth; able to calculate ages of the rocks so when different parts of the moon were formed |
| roles of space shuttles | taking satellites into orbit, repairing satellites, and carrying astronauts and equiptment to and from space stations |
| roles of space stations | probides a place where long term observations and experiments can be carried out in space |
| common features in probes | power system, communication system, and scientific instruments to collect data and perform experiments |
| conditions in space different from on earth | near vacuum, microgravity, and extreme temperatures |
| examples of space spinoffs | velcro, bar codes, joysticks, cordless power tools, light weight metals... |
| uses of satellites | communications and collecting weather data |
| When was Sputnik I launched into orbit? | October 4, 1957 |