Space Exploration Flashcards

Question

What's Spectral Analysis?

Answer 1

Studying the light that passes through gasses, some colors are absorbed creating dark lines in a spectroscope.

Answer 2

My Very Easy Method Just Speeds Up Naming Planets. (Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto)

Answer 3

The electromagnetic spectrum is all the types of energy waves that travel through space. Visible light is just a small part of the spectrum — it’s the light we can see with our eyes. Longer - Lower energy Shorter - Higher energy From Low to High energy - Radio waves, Microwaves, Infrared, Visible Spectrum, Ultraviolet, Xray, Gamma Rays.

Answer 4

A Telescope that uses a correcting lens and a primary mirror. Pro - Much higher resolution Con - Expensive and high maintenance.

Answer 5

A massive ball of gas which produces its own energy through Nuclear fusion.

Answer 6

A large cloud of gas and dust in space, where new stars may form. Stars form from nebulae due to gravity pulling the gas and dust together. That stars are born in nebulae and sometimes die and return their material to space, forming new nebulae.

Answer 7

The early stage in the life cycle of a star, before nuclear fusion begins. Forms when gravity pulls gas and dust together in a nebula. As more material collects, the pressure and temperature increase. Eventually, if it's hot enough, nuclear fusion starts, and the protostar becomes a main sequence star (like our Sun).

Answer 8

Means "between the stars." Interstellar space: the space between stars in a galaxy. Interstellar matter: the gas and dust found in that space, including the material that forms nebulae.

Answer 9

A group of stars that form a pattern in the sky, often named after animals, objects, or mythological characters. Ancient cultures used constellations for navigation and calendars. The stars in a constellation only appear close together, they are often very far apart in space.

Answer 10

Smaller, recognizable patterns of stars that are a part of a constellation or made up of stars from multiple constellations. Ex. The Big Dipper is a Asterism because its a part of the bigger constellation Ursa Major.

Answer 11

Constellation - Official, named group of stars (88 total) Asterism - Informal star pattern, part of one or more constellations

Answer 12

A huge collection of stars, gas, dust, and dark matter, all held together by gravity.

Answer 13

A large, round object that: Orbits a star (like the Sun), Is spherical due to its own gravity, Has cleared its orbit of other debris. And they do not produce their own light – they reflect light from the Sun.

Answer 14

A small object made of ice, dust, and rock that orbits the Sun.

Answer 15

A rocky object that orbits the Sun, usually found between Mars and Jupiter in the asteroid belt. Smaller than planets, but larger than meteoroids.

Answer 16

The bright streak of light you see in the sky when a meteoroid (a small rock or particle from space) enters Earth’s atmosphere and burns up.

Answer 17

A space rock (meteoroid) that survives passing through Earth’s atmosphere and lands on the Earth’s surface.

Answer 18

Meteoroid - Small rock or particle in space, Orbiting in space (outside Earth),Travels through space. Meteor - The streak of light (Shooting star), Inside Earths atmosphere, Meteoroid burns up due to friction. Meteorite - Space rock that hits Earth, On Earth’s surface, Survives atmosphere and lands on Earth

Answer 19

A small rock or particle that is floating in space. It’s smaller than an asteroid but bigger than space dust.

Answer 20

A point or object used to observe and describe the motion of something else. Motion is relative — something can appear to be moving or stationary depending on the frame of reference. Ex. If you’re sitting in a car and look outside, the trees seem to move. But from the trees’ frame of reference, you (in the car) are moving.

Answer 21

Natural objects in space. Ex. Stars, Planets, Moons, Asteroids, Comets, Nebulae, Galaxies

Answer 22

The old model of the solar system that places Earth at the center, with the Sun, Moon, planets, and stars revolving around it.

Answer 23

An optical telescope helps us see far-away things in space, like stars and planets. It uses lenses or mirrors to make the objects look bigger and brighter. We use them because some space objects are too far or too faint to see with just our eyes. There are two main types: -Refracting telescopes use lenses. -Reflecting telescopes use mirrors.

Answer 24

A telescope that orbits outside Earth’s atmosphere in space. Because it’s in space, it can take clearer pictures of stars, planets, and galaxies without the atmosphere blocking or blurring the view. It uses visible light and other types of light (like ultraviolet and infrared) to study space.

Answer 25

Also known as the Parallax technique. A way to find the distance to something far away using geometry. It involves measuring angles from two different points to the object. By knowing the distance between the two points and the angles, you can use math to calculate how far away the object is.

Answer 26

A vehicle that moves by pushing gases out the back very fast. This pushing creates a force called thrust, which moves the rocket forward. Rockets are used to launch spacecraft, satellites, and astronauts into space. Rockets work based on Newton’s Third Law: For every action, there is an equal and opposite reaction.

Answer 27

The speed at which gases are pushed out of a rocket’s engine. The faster the gases leave, the more thrust the rocket produces. Higher exhaust velocity means the rocket can go faster and more efficiently.

Answer 28

A rocket that has multiple parts (stages) stacked on top of each other. Each stage has its own engines and fuel. As the rocket uses up the fuel in one stage, that stage is dropped off to make the rocket lighter and shorter.

Answer 29

A rocket-powered weapon that is launched into the air and follows a curved, projectile path (called a ballistic trajectory) to its target. Unlike rockets that keep engines on, ballistic missiles only have powered flight at the beginning. Their path is mostly controlled by gravity once the engines stop.

Answer 30

Gravity is the force that pulls objects toward each other. On Earth, gravity pulls everything down toward the ground. It’s what keeps the planets orbiting the Sun and the Moon orbiting Earth.

Answer 31

When a spacecraft uses the gravity of a planet or moon to speed up or change direction without using extra fuel. The spacecraft flies close to the planet, and the planet’s gravity pulls it, giving it a boost.

Answer 32

A spacecraft designed to go to space and return to Earth so it can be used again. It looks like an airplane with wings but can also travel in space. They launch like rockets but land like planes on a runway. Space shuttles carry astronauts, satellites, and supplies to space stations.

Answer 33

A large spacecraft that orbits Earth and where astronauts live and work for long periods. It’s like a laboratory in space for doing science experiments.

Answer 34

A process that uses electricity to split a compound into its elements. For example, electricity can split water (H₂O) into hydrogen gas (H₂) and oxygen gas (O₂). It happens in a device called an electrolyzer with two electrodes: an anode and a cathode.

Answer 35

(One of Canadas contributions to space) A Canadian satellite launched in 1972. It was the first satellite in the world used just for telecommunications (TV, phone, etc.) in one country. It helped bring TV and phone signals to remote parts of Canada, like the North.

Answer 36

(One of Canadas contributions to space) (1989) -The Canadian Space Agency (CSA) was created to organize and lead Canada’s space research and technology.

Answer 37

(One of Canadas contributions to space) (1984) -He was the first Canadian astronaut in space.

Answer 38

(One of Canadas contributions to space) (1992) She was the first Canadian woman in space.

Answer 39

(One of Canadas contributions to space) (1981) A robotic arm built by Canada for the Space Shuttle and later used on the ISS.

Answer 40

Form in regions of space where there are huge accumulations of gas and dust called Nebulae. One particle attracts others (Gas and Dust) then they start spinning and get hotter, then it glows. This is a Protostar, the first stage in star formation. When it gets hot enough in the center (about 10 million °C), nuclear fusion starts. Once fusion begins, it officially becomes a main sequence star — like our Sun!

Answer 41

Red - Cold star (Old) Blue - Hot star (New)

Answer 42

Ability to distinguish one point from another - DETAIL

Answer 43

Continuous - Least useful for study. High energy "blurs" lines into a continuous spectrum. Absorption - Light energy is absorbed by the cooler gasses = black lines. Emission - Also called Bright Line Spectrum.

Answer 44

For every action there is an equal + opposite reaction.

Answer 45

Red shifted - Happens when an object in space is moving away from us Light waves get stretched, so they shift toward the red end of the spectrum Red = Receding (R and R!) Common in galaxies — it’s how we know the universe is expanding Blue shifted - Happens when an object is moving toward us Light waves get compressed, so they shift toward the blue end of the spectrum Seen in objects like stars or galaxies coming closer

Space Exploration Flashcards

(69 cards)