Quiz
Full Science Test Practice Quiz 1
Fragen in diesem Quiz (28)
1Gravity is.....
- AThe force that pulls objects to one another.
- BThe force of power.
- CThe fore that exerts pressure.
2Check all the steps to the life of a star the size of a sun in order.
- AThey start in a nebula a giant cloud of dust and gas.
- BThe gases and dust begin to clump and heat up until they begin to perform nuclear fusion. (Called a protostar)
- CWhen the nuclear fusion has started, the star is known as a main sequence star and if its the size of the sun or less, it can live anywhere from 10 billion to trillions of years.
- DAfter the star has used up all the hydrogen and other fuels, it begins to swell into a red giant. If larger than the sun, they will become a red supergiant.
- EOuter layers of the star drift away, then the core shrinks to become a a small, hot, dense white dwarf stars.
- FWhite dwarf eventually cools and fades.
3Describe in order, the formation of the solar system.
- AAt first, the gas that was in the atmosphere was blown away by the solar winds. Then they began to clump and collide to form the Gas Giants.
- BThen, the heavy materials which are still close to the sun began to clump and collide to form the Terrestrial Planets.
- CThe rest of the matter became asteroids, comets, and moons.
4The Terrestrial Planets are made out of the heavier materials in our solar system, and can be called the Inner Planets.
- ARichtig
- BFalsch
5The Gas Giants are not made of gas. They cannot be called the Outer Planets.
- ARichtig
- BFalsch
6Why are some planets made out of gas, and others of solid material?
- AThe Gas Giants were made because of the solar winds blowing all the gas outwards.
- BThe solid material stayed near the sun to create the Terrestrial Planets.
7What is the main evidence that leads to us assuming the universe expanding?
- AThe Red Shift
- BThe Blue Spread
- CThe Yellow Space
8Violet has the _______ wavelength.
- ALongest
- BShortest
- C4th Longest
9Red has the ________ wavelength.
- ALongest
- BShortest
- C3rd Longest
10The Red Shift explains that because we can see a shade of red in other galaxies, it indicates that the galaxy is moving farther away, which also indicates that the universe is expanding.
- ARichtig
- BFalsch
11Explain the Big Bang Theory.
- AIt starts with all the matter in one small, extremely compact, hot (100 million degrees C) ball.
- BAt some point, all this matter exploded, and begun to spread.
- CThen, after four minutes, the matter began to cool and form subatomic particles(neutrons, protons, electrons).
- DAfter about a billion years, some galaxies began to form.
12Cosmology is the study of the changes and the origins of the universe.
- ARichtig
- BFalsch
13What are the differences between spacecraft and aircraft.
- ASpacecraft usually fly 200 km or more above the Earth's surface, aircraft usually only fly above 20 km.
- BAircraft engines require oxygen in the air, spacecraft engines do not.
- CA piloted spacecraft requires its own fuel and oxygen, while an aircraft only needs fuels.
- DSpacecraft must travel much, much faster.
14What evidence suggest that planets in other solar systems exist?
- AMany stars that we have seen, seem to have planets about the same distance away from a star as our planets.
- BHubble Space Telescope has detected other planetary systems being formed.
- CThe first direct evidence of solid matter existing anywhere other than the sun was found in a large cloud of tiny particles in orbit around the star Vega.
15Why do aircraft engines need oxygen.
- AThey use oxygen to burn fuel.
- BThey use oxygen to fly farther.
16Why can't aircraft fly very far into Earth's atmosphere?
- ALack of oxygen farther in the Earth's atmosphere.
- BPilots are afraid of heights.
17Why are the wings and rotors curved?
- AWhen the wings are curved, low pressure air is pushed to the top and high pressure air is on the bottom, keeping the aircraft aloft.
- BIt helps it fly.
18What two forces must balance out for an object to orbit the Earth?
- AGravity and Thrust
- BPull and Push
19Outer Space begins at about 150 km above the Earth's surface.
- ARichtig
- BFalsch
20Describe the different types of spacecraft and give examples of each. Give advantages and disadvantages of each. What do spacecraft have to carry with them?
- AThere high- Earth orbit and low-Earth orbit spacecraft, as well as piloted and unpiloted. The advantages to a low- Earth orbit satellite is that it can remote sense/make observations from a distance, but it would be very difficult to use for TV communication due to the fact that the receivers would have to track the satellite as it moved across the sky.
- BHigh- Earth orbit satellites can be used for this type of communication, but would have a harder time seeing the natural disasters and occurrences.
- CPiloted spacecraft allow man to actually venture space, but can be dangerous and won't go as far.
- DUnpiloted spacecraft allow us to go farther and not worry about endangering human life or packing food and oxygen.
21Payload is any spacecraft or cargo launched into space.
- ARichtig
- BFalsch
22Launchers launch payloads.
- ARichtig
- BFalsch
23The force that causes an object to move is called thrust.
- ARichtig
- BFalsch
24Examples of a payload.
- AThe ISS
- BApollo
- CRADARSAT
25Examples of launchers,
- ARocket Engines
- BStuff
26A low-Earth orbit is between 200-1000 km high.
- ARichtig
- BFalsch
27A high Earth orbit is higher than 36000 km.
- ARichtig
- BFalsch
28A geosynchronous orbit satellite uses high earth orbit, while RADARSAT uses low earth orbit.
- ARichtig
- BFalsch
Informationen
- Beschreibung
- Science 9, New Brunswick
- Autor
- shafkatahmed24
- Sprache
- English
- Aufrufe
- 53
- Schlagwörter
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