Class 6A Chemistry Stage 7: Unit 9&10

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Across
  1. 2. Unit of measurement of energy
  2. 6. An object in space that has 1/6 th the gravity as earth.
  3. 8. Type of energy stored by a battery.
  4. 10. Largest natural source of thermal energy for Earth.
  5. 12. When you push a box on the floor _______ force is applied in the opposite direction of motion.
  6. 13. Forms of energy that transfers are heat, sound and ______ energy.
  7. 15. _________ supplies energy to aircrafts as fuel.
  8. 16. Type of Energy used for cooking food on a gas stove.
  9. 17. When a boy is jumping on a trampoline _______ energy from trampoline is converted to gravitational potential energy.
  10. 19. A thunder during a rain carries light and ______ energy.
  11. 21. When a wind turbine rotates it converts _________ energy to electrical energy that eventually powers our homes.
  12. 22. A glowing light bulb emits _______ and light energy.
Down
  1. 1. ___________ wood creates heat energy and light energy.
  2. 3. When water stored in a dam flows downwards it converts gravitational potential energy to ____________ energy to run millwheel.
  3. 4. ___________ is a device used to measure force
  4. 5. Force responsible for holding us on surface of earth is called ________.
  5. 7. For a safe flight of a parachute, the balancing force against air resistance is _______ force.
  6. 9. Energy is _________ when it changes from one form to another. Same amount of energy present before transformation is found after the transformation of an energy form.
  7. 11. When you are cycling by pushing the pedals you are converting mechanical energy into ________ energy so that you can move forward.
  8. 14. Airplanes are designed to have a ________ shape to withstand air resistance.
  9. 18. Force applied by the floor on a jumping child when she touches the floor is called ________ force.
  10. 20. Force exerted by 5 kg object on a weighing scale is _______ N.