8th Q4 Revision Part 1 23

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Across
  1. 5. Bulkiest TVs
  2. 6. What produce microwaves in an oven?
  3. 8. The time it takes for a satellite to orbit the earth is called its __________.
  4. 9. When fossil fuel is used, a lot of ____________ energy escapes and can’t be recovered.
  5. 12. As the speed of the molecules in a fluid increases, the pressure decreases.
  6. 16. Communication, tracking , GPS
  7. 17. These TVs shows sharp image.
  8. 18. The thrust will be equal to ______, if a plane is moving at a constant speed.
Down
  1. 1. Birds get their ______ by flapping their wings.
  2. 2. Which code is consisting only of 0 and 1?
  3. 3. Which type of waves only react with water molecules in food?
  4. 4. Screen flickers in these TVs
  5. 7. Which was the first satellite launched?
  6. 10. Most airplane and bird wings are in the shape of an ______.
  7. 11. Thinnest TVs
  8. 13. force / area
  9. 14. objects reflect microwaves
  10. 15. These TVs uses LED backlights