Reading...
Play button
Play button
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;
14 Cards in this Set
- Front
- Back
- 3rd side (hint)
|
Astronomy
|
study of space and all the objects in it
|
I love astronomy.
|
|
|
Solar System
|
Sun and all the bodies that orbit it.
|
I love the solar system.
|
|
|
Galaxy
|
Huge collaction of stars, gas, and dust that travels together in space
|
Our solar system exists in the Milky Way Galaxy.
|
|
|
Refracting telescope
|
Telescope that uses convex lenses to produce an enlarged image
|
Refracting telescopes are old technology
|
|
|
Convex lens
|
Lens that is thicker in the middle than it is at the edges
|
Convex lenses are weird.
|
|
|
Reflecting telescope
|
A telescope that uses a concave mirror to collect light.
|
Reflective telescopes are old.
|
|
|
Concave mirror
|
Mirror that curves inward
|
Concave lenses are weird too.
|
|
|
Radio telescope
|
telescope that can receive radio waves from suorces in space
|
A radio telescope can find stars during the day or when there are clouds.
|
|
|
Light-year
|
unit of measurement equal to about 10 trillion km
|
Light-year is far away.
|
|
|
Parallax
|
The apparent change in position of distant objects when seen from two different places.
|
A parallax occors all the time at night.
|
|
|
Astronomical unit
|
unit of measurement based on the Sun`s distance from Earth
|
We can use astronomical units to measure distances in space, especially planets.
|
|
|
Thrust
|
forward force produced in a rocket engine
|
The thrust of a rocket is deadly, it will kill you if you are to close.
|
|
|
Satellite |
natural or artificial object orbiting a body in space
|
There are 24 Satellites orbiting Earth that have G.P.S.
|
|
|
Orbit |
Curved path of one object around another object in space
|
The Moon is the only natural object that orbits the Earth.
|
