Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
31 Cards in this Set
- Front
- Back
|
Spectroscopy |
The study of spectra spectrum produced by light |
|
|
Spectroscope |
A device that when a beam of light passes through it, it produces a focused spectrum |
|
|
Doppler Effect |
An increase/decrease in the of sound, light or other waves as the source or observer moves towards/away from each other. The effect causes a sudden change in pitch or a red/blue shift. |
|
|
Red Shift |
Lines of an object's spectrum are slightly moved to the red side. This means it is moving away from you. |
|
|
Blue Shift |
The lines of an object's spectrum are slightly shifted to the blue side. This means it is moving towards you. |
|
|
Electromagnetic Spectrum |
Is the spectrum of all electromagnetic radiation.(listed least to greatest) 1. Radio Waves 2. Microwaves 3. Infrared Radiation 4. Visible Light 5. Ultraviolet Light 6. X-rays 7. Gamma Rays |
|
|
Remote Sensing |
Taking measurements of Earth from space |
|
|
Uses of Remote Sensing |
- To show healthy vs. unhealthy vegetation - Water pollution can be imaged - Erosion can be tracked - Land use in cities can be observed - Weather can be tracked - Clear-cut/burned forests can be mapped to show rates of degradation |
|
|
Geocentric Model |
Or Earth-Centred model States Earth is the centre of the universe and everything rotates around Earth. |
|
|
Heliocentric Model |
Or Sun-Centred Model States that the sun is the centre of the universe and all the planets rotate on their axis and around the Sun. |
|
|
How Does A Rocket Work? |
The rocket burns fuel which creates exhaust that propels the rocket upward. A stage of the rocket contains fuel and when that fuel burns off the rocket drops that stage so it is lighter. Because it is lighter it will the have a higher range. |
|
|
How do they handle water on the International Space Station? |
They get water on the space station from distilled water from their crewmates breath |
|
|
Space Junk |
Space Junk is leftover pieces of rockets, satellites, ect floating around in space. |
|
|
Gravitational Assist |
A method of acceleration which enables a spacecraft to change speed by using the gravity of a planet. We use it to propel the rocket upward faster at any time. |
|
|
What are stars made of? |
Hydrogen |
|
|
Why was the space shuttle such an important discovery? |
The space shuttle was the first re-usable rocket |
|
|
The higher a satellite is the |
more area it covers |
|
|
GPS |
24 satellites you to see three |
|
|
Triangulation |
Measure the distance to stars indirectly (The bigger the baseline the more accurate the measurement) |
|
|
Telescopes: Mirror vs. Lenses |
Mirrors: reflect Lenses: refract |
|
|
Azimuth |
The angle measured clockwise from north |
|
|
Altitude |
The angle of the star is the angle above the horizon |
|
|
Frame of Reference |
A set of axes of any kind that is used to describe the positions or motions of things. |
|
|
The Inner Planets Are? |
1. Mercury 2, Venus 3. Earth 4. Mars They have a terrestrial composition, rotate slow and revolve fast and are small. |
|
|
The outer planets are? |
1. Jupiter 2. Saturn 3. Uranus 4. Neptune They have a gaseous composition, are large, revolve slow but rotate fast. |
|
|
Constellation |
Groupings of stars that form patterns, which appears like objects and are given names |
|
|
Nebula |
A cloud of dust and gas in space leftover from the birth of a star or a suprnova. |
|
|
Galaxy |
A system of stars, together with dust and gas held together by gravitational attraction. |
|
|
Solar System |
The collection of 8 planets and their moons in rotaion around the sun. Together with smaller bodies |
|
|
Star |
A fixed luminous point in the sky that is a large, remote incandescent source |
|
|
Planet |
A celestrial body moving in an elliptical around a star |
