Edit Game
Friction force
 Delete

Use commas to add multiple tags

 Private  Unlisted  Public




Delimiter between question and answer:

Tips:

  • No column headers.
  • Each line maps to a question.
  • If the delimiter is used in a question, the question should be surrounded by double quotes: "My, question","My, answer"
  • The first answer in the multiple choice question must be the correct answer.






 Save   7  Close
Parachutist opens the parachute on landing.
to increase surface area that increase air resistance , and slow down his motion to land safely.
It is a type of friction force that happens when a body moves through water.
Water resistance.
Air crafts are desighned in streamline shape.
To decrease the surface area , so the air resistance decrease, and the speed increase.
The fish has streamline shape.
To decrease the surface area, so the water resistance decreases.
It is a type of friction force that happens when a body moves through air.
Air resistance
Is it easier to ski on grass or snow ?, Why ?
To ski on snow , as the snow is smooth ,The friction force depends on the type of the material directly in contact with the base of the snow scooter.
The force between two surfaces in contact that acts in a direction opposite to the direction of motion and causes the object to slow down and stop.
Friction force.