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 stars, planets, and other obkects in space
|
Scientists look at a lot of astronomy
|
|
|
Solar system
|
Sun and all the bodies that orbit it. |
Earth is a part of the solar system
|
|
|
Galaxy
|
Huge collection of stars, gas, and dust that travels together through space
|
Our solar system exists in the Milky Way Galaxy.
|
|
|
Refracting telescope
|
Telescope that uses convex lenses to produce an enlarged image
|
Galilieo used a refracting telescope
|
|
|
Convex lens
|
Lens that is thicker in the middle than it is at the edges
|
Convex lenses are in refracting telescopes
|
|
|
Reflecting telescope
|
A telescope that uses a concave mirror to collect light.
|
Has a concave mirrior
|
|
|
Concave mirror
|
Mirror that curves inward
|
Concave mirriors are in reflectiong telescopes
|
|
|
Radio Telescope
|
Telescope that can receive radio waves from sources in space
|
A radio telescope can find stars during the day or when there are clouds.
|
|
|
Light-year
|
UNit of measurment equal to about 10 trillion km
|
We live light years away from other galakys
|
|
|
Parallax
|
The apparent change in position of distant objects when seen from two different places.
|
Astronmers can use parallex to find the distant of stars
|
|
|
Astronomical unit
|
Unit of measurement based on the suns distance from earth and equal to about 150 million km
|
We can use astronomical units to measure distances in space, especially planets.
|
|
|
Thrust
|
Forward force produced in a rocket engine
|
The mor thrust the higher and faster the spaceship will go
|
|
|
Satellite
|
Natural or artificial object orbiting a body in space |
The curved path of the objects is its orbit
|
|
|
Orbit |
Curved path of one object aroun another object in space |
|
