Forces

12345678910111213
Across
  1. 4. Shaped to reduce resistance to motion from air or water.
  2. 5. The unit of force, symbol N.
  3. 7. The amount of matter (stuff) a thing is made up of.
  4. 8. Forces acting on an object that are the same size but act in opposite directions.
  5. 10. The force on an object moving through the air that causes it to slow down (also known as drag).
  6. 12. The force acting on an object moving through air or water that causes it to slow down.
  7. 13. The force of the Earth on an object due to its mass.
Down
  1. 1. The force on an object moving through water that causes it to slow down (also known as drag).
  2. 2. A unit of mass, symbol kg.
  3. 3. The force that resists movement because of contact between surfaces.
  4. 6. A force that acts when an object is in contact with a surface, air, or water.
  5. 9. A substance that reduces friction between surfaces when they rub together.
  6. 11. The force acting between two charged objects.