Thursday, April 21, 2011

What I know about forces and motion


What I know
  1. What goes up must come down
  2. Everything has its own gravitational pull
  3. The Earth uses gravity to keep the moon in orbit
  4. If there was no friction if we pushed a toy car across the floor it would keep going
  5. There is no gravity in space 
  6. Weight is made by gravity
  7. The moon has less gravity than the Earth
  8. Isaac Newton came up with the laws of motion

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