Answers created by chandramohanPanakkal

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• What is the circumference of the sun in millimeters?
  
• What is the Copernican Theory?
  
• Why was the National Aeronautics and Space Administration (NASA) created?
  
• A generator produce 100kwatt power at a potential difference of 10 KV the power transmitted through cable of total resistance 5 ohm how much power dissipated in the cables?
  
• How do you convert 240 miles per hour to feet per second?
  
• The length of telescope is 100cm and magnification is 9 the focal length of objective and eyepiece is ? answer is 90cmamd 10cm but how?
  
• What is the precise definition of a parsec?
  
• Why do scientists think Earth's core contains iron?
  
• Find the average velocity of a car which travels 360 km in 6 hours, show in m/s and km/h ?
  
• Approximately how many moons are there in the solar system that are larger than Pluto?
  
• How many moons does the sun have?
  
• What determines whether a star will eventually become a white dwarf or explode in a super nova?
  
• An object in satellite orbiting around the earth is weightless due to?
  
• How does a black hole form?
  
• How much power is produced if a voltage of #6 V# is applied to a circuit with a resistance of #42 Omega#?
  
• How do the sun and stars move?
  
• What are the lunar mare?
  
• What the distance to the next galaxy ?
  
• What is the difference between the rotation of the earth and that of the moon?
  
• Why are supernovas hard to spot in our own galaxy?
  
• How are fossil fuels used to make energy?
  
• What is the group of constellations the Sun appears to travel through in the sky?
  
• How are electric power and electrical energy related?
  
• What is a standard candle?
  
• How are fossil fuels used to generate electricity?
  
• What is Jupiter's perihelion and aphelion?
  
• What is the difference between the Big Bang theory and the Steady State theory?
  
• How is balance between the differen objects in the solar system?
  
• How far away is the center of our galaxy from the sun?
  
• What are planetary motions?
  
• What are nebulae?
  
• How does the moon's gravity differ from earth's?
  
• How do binoculars work?
  
• What is the distance from earth to sun in astronomical units?
  
• Which planets are smaller than earth?
  
• What method do scientists use to tell how far a galaxy is?
  
• Is Mars the only planet that has had a rover landed on it?
  
• How can heat cause motion in a liquid?
  
• Does solar energy need to be used right away?
  
• How has the Hubble Space Telescope helped humankind?
  
• What does the universe expanding mean?
  
• How does the Hubble Space Telescope work?
  
• How do telescopes work?
  
• Which of the planets occasionally have their poles pointed almost directly at the Sun?
  
• How is it possible that the Sun side of the moon is always facing us?
  
• How would I find the distance of a star in parsecs and light years if parallax is known? For example, Sirius, the brightest star in the sky, has a parallax of 0.379 arcsec. What is its distance in parsecs? In light years?
  
• What affect does gravity have on stars?
  
• How does a reflecting telescope work?
  
• How do space probes send images to earth?
  
• What is the actual source of earth's magnetic field?
  
• Who first theorized that the earth revolved around the sun?
  
• What triggers nuclear fusion in stars?
  
• When latitude increase what does the intensity of the solar system do?
  
• What is the name of the nearest constellations of the Earth?
  
• What uses sound waves to locate objects underwater?
  
• How many minutes does it take light from the sun to reach Earth?
  
• If it takes over a Million years for light to reach the suns outer levels how long does it take to reach earth?
  
• What is transformer?
  
• How are radio teles different from a keck telescopes?
  
• What is the difference in life cycles of a star that starts with a nebula and forms a black hole when in dies compared to a star that ends as a black dwarf?
  
• What is a black hole in space?
  
• Why is the voltage across a bulb the same as the battery in a series circuit?
  
• Is your body expanding according to Hubble's Law? Is the Earth expandable?
  
• When the earth was made, how was water was formed?
  
• How is solar energy beneficial for the environment?
  
• What electromagnetic waves have the longest wavelengths?
  
• What astronomical cycle causes climate changes?
  
• How can plastic reduce food waste?
  
• You are watching a meteor shower. You notice that some of the "falling stars" are green, and others are blue. What does this tell you about the meteors that are involved in the storm?
  
• Why are Supernovas important to life on earth?
  
• What are the planetary motions?
  
• How does mass and volume relate to matter?
  
• Why is it that in a rainy day a weak wind was able cause a coconut tree to fall ?
  
• What is the current composition of the atmosphere?
  
• What revolutions occur in the sun-earth-moon system?
  
• What is the smallest known planet in the Solar System? How much smaller is it than earth?
  
• What is cosmological redshift?
  
• How many constellations are in the Zodiac?
  
• How does the energy produced in the core of the sun reach the surface?
  
• What is dense matter?
  
• What force acts between all objects all the time?
  
• Where did fossil fuels originally get their energy from?
  
• What are differences between parallel and series circuit .?
  
• How many suns can fit in our galaxy?
  
• What indirect evidence do geologists use to study the structure of the earth?
  
• How does warmer temperatures affect takeoffs?
  
• How do we detect other galaxies?
  
• How much bigger is the diameter of Jupiter compared to the Earth's?
  
• Why is betelgeuse considered a red giant?
  
• Why are black holes invisible?
  
• Can you create electricity with a magnet?
  
• What kind of a star goes “nova” (not supernova)?
  
• Which bodies of water does the Nile River originates in?
  
• Where do we find white dwarfs on the H–R diagram?
  
• When does the atmosphere gets heated up? a.early morning b.mid day c.at 2:00 pm d.late evening
  
• A boy makes a ruler with graduations in cm in it. To what accuracy this ruler can measure? How can this accuracy be increased?
  
• Which is longer on Venus, one day or one year?
  
• Why does the speed of earth's rotation not affect us?
  
• Why is Pluto's orbit different compared to other planets?
  
• How is a planetary nebula formed?
  
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