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Quiz 43a

Science & Technology

  1. 'Ag' is the chemical symbol for which precious metal? - Silver

  2. X-rays have a longer wavelength than microwaves. True or false? False

  3. Acetic acid is more commonly known as what? - Vinegar

  4. What do Mercury and Venus have in common? - They both have no moons

  5. Entomology is the study of what? - Insects

  6. The word 'BASIC' in computing terms means what? - Beginners All-Purpose Symbolic Instruction Code

  7. What name is given to number 1 followed by 100 zero's? - A googol

  8. Who was the inventor of the Ball-point pen? - Lazio Biro

  9. What is the Fahrenheit equivalent of minus 40 degrees Celsius? - Minus 40 degrees! They are the same.

  10. Percy Shaw invented a road safety device commonly known as what? - Cats Eyes

  11. In a petrol engine what component mixes fuel and air? - The carburettor

  12. K is the chemical symbol for what? - Potassium

  13. Litmus paper changes to what colour when dipped in acid? - Red

  14. Solid carbon dioxide is commonly known as what? - Dry ice

  15. Sn is the chemical symbol for which metal? - Tin

  16. Edwin Land invented which camera? - Polaroid camera

  17. Seismology is the study of what? - Earthquakes

  18. What actually is laughing gas? - Nitrous Oxide

  19. Fe is the chemical symbol for what metal? - Iron

  20. What is a photon? - A particle of light - "Under the photon theory of light, a photon is a discrete bundle (or quantum) of electromagnetic (or light) energy. Photons are always in motion and, in a vacuum, have a constant speed of light to all observers, at the vacuum speed of light (more commonly just called the speed of light) of c = 2.998 x 108 m/s" - source = http://physics.about.com/od/lightoptics/f/photon.htm. Hope this helps

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