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  1. Abu mota

    Biology Paper 61 ANSWERS ARE HERE!!!!!

    yes i did
  2. Abu mota

    Biology Paper 61 ANSWERS ARE HERE!!!!!

    for the benedicts one there is a range of colours from green to yellow if weak and if strong from orange to red.
  3. Abu mota

    Biology Paper 61 ANSWERS ARE HERE!!!!!

    i dont understand what do u mean but for the mesophyll i labelled the black part in the middle.
  4. Abu mota

    Biology Paper 61 ANSWERS ARE HERE!!!!!

    for the variation one im not really sure but ur answer makes sense to me :) and for the osmosis one, this is my opinion as they are comparing results which means that the difference will be the same if they used the same length for both but longer and longer time
  5. Abu mota

    Biology Paper 61 ANSWERS ARE HERE!!!!!

    i think that time period want really matter nor length srry because length and time affects both so if it was 5 minutes both will be affected the same and if it was 10 minutes both will be affected the same, and also length as long as they have the same length it doesnt affect the results.
  6. Abu mota

    Biology Paper 61 ANSWERS ARE HERE!!!!!

    i wrote continuous variation for the last one :cautious:
  7. Abu mota

    Biology Paper 61 ANSWERS ARE HERE!!!!!

    i dont think a stop watch is right as it was 10 minutes, stop watch is only used for short time intervals, also he was just comparing the difference between distilled water and salt solution so we dont need various range of salt solutions concentrations. in my opinion, the right answers are try...
  8. Abu mota

    IGCSE Physics Paper 1 Variant 1

    The collision of the bullet with the pendulum is an example of an inelastic collision, in which momentum, but not kinetic energy, is conserved. (Some of the kinetic energy of the bullet goes into "forcing" its way into the pendulum, and ultimately ends up as heat energy or stored strain energy...
  9. Abu mota

    IGCSE Physics Paper 1 Variant 1

    http://www.physicsclassroom.com/class/waves/u10l0c.cfm read that bro what causes the bob to turn is the tension of the spring which means strain energy.
  10. Abu mota

    IGCSE Physics Paper 1 Variant 1

    it is strain energy not gravitational potential energy because gravitational potential energy cant be converted directly into gravitational potential energy it has to be converted into kinetic energy which was already mentioned in the question, and what causes the turning motion in the pendulum...
  11. Abu mota

    IGCSE Physics Paper 1 Variant 1

    what about the pendulum one? was it strain energy?
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