SPACE

Question 1

What are constellation?

Answer 1

a group of stars forming a recognizable pattern that is traditionally named after its apparent form or identified with a mythological figure

Question 2

What are Celestials bodys?

Answer 2

objects in space such as the sun, moon, planets, and stars.

Question 3

What is a frame of reference?

Answer 3

a set of criteria or stated values in relation to which measurements or judgments can be made.

Question 4

What is azimuth?

Answer 4

the direction of a celestial object from the observer, expressed as the angular distance from the north or south point of the horizon to the point at which a vertical circle passing through the object intersects the horizon.

Question 5

What is Altitude?

Answer 5

height of an object or point in relation to sea level or ground level.

Question 6

What is an astrolabe?

Answer 6

an instrument formerly used to make astronomical measurements,

Question 7

What is a compass?

Answer 7

an instrument containing a magnetized pointer which shows the direction of magnetic north and bearings from it.

Question 8

What is Geocentric?

Answer 8

having or representing the earth as the center, as in former astronomical systems.

Question 9

What is a sun centered model?

Answer 9

a cosmological model in which the Sun is assumed to lie at or near a central point

Question 10

Who invented the telescope?

Answer 10

Galileo Galilei

Question 11

Whats the difference between refracting and reflecting?

Answer 11

Reflection is the act of light reflecting back when it hits a medium on a plane. Refraction is the process by which light shifts its path as it travels through a material, causing the light to bend.

Question 12

What is universal gravitation?

Answer 12

every particle in the universe attracts every other particle with a force directly proportional to the product of their masses and inversely proportional to the square of their distance.

Question 13

What is a spectroscope?

Answer 13

breaks the light from a single material into its component colors the way a prism splits white light into a rainbow

Question 14

What is diffraction grating?

Answer 14

a plate of glass or metal ruled with very close parallel lines, producing a spectrum by diffraction and interference of light.

Question 15

What is a spectral analysis?

Answer 15

the determination of the constitution or condition of bodies and substances by means of the spectra they produce

Question 16

What is the doppler effect?

Answer 16

an increase (or decrease) in the frequency of sound, light, or other waves as the source and observer move toward (or away from) each other.

Question 17

What is triangulation?

Answer 17

a method of measuring distance indirectly by creating an imaginary triangle between an observer and an object whose distance is to be estimated

Question 18

What are adaptive optics?

Answer 18

allows the corrected optical system to observe finer details of much fainter astronomical objects than is otherwise possible from the ground

Question 19

What is the parallax technique?

Answer 19

the displacement or change in the object’s apparent position when viewed from two different points of view.

Question 20

What are astronomical units?

Answer 20

a unit of measurement equal to 149.6 million kilometers, the mean distance from the center of the earth to the center of the sun.

Question 21

What are electromagnetic radiation?

Answer 21

a kind of radiation including visible light, radio waves, gamma rays, and X-rays, in which electric and magnetic fields vary simultaneously.

Question 22

What does CCD mean?

Answer 22

Charge
Coupled
Devices

Question 23

What is artificial satellite?

Answer 23

an object that people have made and launched into orbit using rockets.

Question 24

What does GPS mean?

Answer 24

an accurate worldwide navigational and surveying facility based on the reception of signals from an array of orbiting satellites.

Question 25

What is Microgravity?

Answer 25

very weak gravity, as in an orbiting spacecraft.

Question 26

How is a emission spectrum produced?

Answer 26

when glowing hot gas emits lines of different colors of light

Question 27

What kind of materials can radio waves penetrate?

Answer 27

wood, bricks, and concrete.

Question 28

In what frame of reference does a building seem to not move?

Answer 28

An inertial frame of reference

Question 29

What is the solar wind?

Answer 29

a flow of particles that comes off the sun at about one million miles per hour and travels throughout the entire solar system.

Question 30

How does the sun release energy?

Answer 30

Solar energy is created by nuclear fusion

Question 31

What year did the first moon landing happen in?

Answer 31

1969

Question 32

Name something engineers need to consider when building a space capsule?

Answer 32

oxygen, food, water, and rest

Question 33

What elements are in stars?

Answer 33

hydrogen and helium

Question 34

Why do rockets nowadays use liquid instead of solid fuel?

Answer 34

Major advantages of liquid propellant rockets are that they generally have higher specific impulses than solids, the thrust can be throttled, the system can be restarted as often as designed, and the flow of propellants can be monitored and regulated to precisely control the magnitude of the thrust.

Question 35

What is remote sensing?

Answer 35

the scanning of the earth by satellite or high-flying aircraft in order to obtain information about it.

Question 36

How is an absorption spectrum produced?

Answer 36

when light passes through a cold, dilute gas and atoms in the gas absorb at characteristic frequencies.

Question 37

What method do astronomer used to measure the distance to the nearest star?

Answer 37

Parallax Angle

Question 38

If a star is “Red shifted”, what can astronomers conclude about the star?

Answer 38

The star is further away.

Question 39

What shape are the orbits of the planets?

Answer 39

elliptical.

Question 40

When was the telescope made?

Answer 40

1608