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PIMSO 2023 - Science - Primary 3 - National Round Question 17

PIMSO Science · PIMSO 2023 - Science - Primary 3 - National Round

Question 17

What kind of force prevents you from flying off of the ground?
  1. gravitational force of the earth
  2. gravitational force of the sun
  3. friction force on the ground
  4. normal force
  5. no force is necessary to keep myself on the ground