Topic 4-6
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What is electromagnetic energy
The energy carried by waves that comes from things like light bulbs, sun and radios
What is radio waves
Invisible waves in the air that carry signals for tv, wifi, and radios
What are adaptive optics
Computers that sense when earths atmosphere moves and then adjusts to make a clear picture
What is interferometry
A technology that combines images from others telescopes to create a better image
What’s triangulation
A method of measuring distance by creating an imaginary triangle between the observer and object
Who’s Robert Goddard
A guys they successfully launched a rocket with liquid fuel
What’s an astronomical unit
A type of measurement to measure our solar system
What’s a gravitational assist
A way for a space craft to gain extra speed by using gravity from a plannet
What is low earth orbit
A satellite used for phone calls because it’s lower to the ground
Geosynchronous orbit
Geosynchronous orbits are satellites that are further away from earth and stay in one spot
What are some issues that astronomers have with earth based telescopes?
Because of the motion of the earths atmosphere stars light refracts randomly which makes it hard to get a clear picture of the stars
What plannets are terrestrial
Mercury Mars Earth Venus
What planets are gassis
Jupiter Saturn Uranus Neptune Pluto