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Y5 Forces and Motion

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  • Why does a crumpled peice of paper land before a flat sheet of paper
    Because there is less air resistance (luftmotstånd)
  • What type of energy does the skateboarder have at K?
    Potential Energy
  • If two forces are moving in opposite directions what are they called?
    Counterforces
  • In the image, what force is acting in arrow A
    Gravity
  • If these kids are pulling with the same amount of force what will happen?
    They wont move
  • When the earth travels around the sun this is an example of which force?
    Centripetal force
  • What will NOT change if you go to the Moon: weight (Vikt) or mass (massa)?
    Mass (massa)
  • A type of friction that happens when air pushes against a moving object and makes it slow down
    Air resistance
  • What direction will the ball move if they both kick the ball at the same time?
    Left (towards the yellow team player)
  • What 2 things can increase friction?
    More weight and a rougher surface. (mer vikt och en grövre yta)
  • The force of an object is measured in ....
    N (Newtons!)
  • What has the least friction: a snowboard on a snowyhill or a runner on the road
    The snowboarder
  • (Pick a force): The bike with thick tires slows down faster than the bike with thin tires
    Friction (or air resistance)
  • (Pick a force) The man leans forward on his bike to go faster.
    Air resistance
  • Does an object with more mass (vikt) needs more force or less force to be moved?
    More force
  • What type of energy does a ball have when you kick it?
    Kinetic Energy
  • (Push or Pull): Pressing the gas pedal in a car
    Push
  • If two forces are equal and work in opposite directions what are they called?
    Balanced Forces
  • What force pulls a human back to earth when we jump?
    Gravity
  • Give an example of a force and a counter force:
    Answers may vary (example: gravity and air resistance)