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Force and Fan Carts Quiz

Quiz by Romano, Ellen

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12 questions
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  • Q1
    If a fan cart with the fan set to High has a speed of 31.0 cm per second after 5 seconds, what could the cart's speed be at the same time if the fan speed is set to Medium?
    31.0 cm per second
    5.0 cm per second
    40.0 cm per second
    10.9 cm per second
    30s
  • Q2
    What is necessary for a moving object to change its speed?
    for a moving object to keep moving at the same speed and direction
    to maintain the same speed
    for a moving object to change its speed
    to remain at rest
    30s
  • Q3
    If Rebecca measures the speed of her fan cart and it reaches 20 cm per second at 10 seconds, what speed will it reach at 12 seconds?
    18 cm per second
    22 cm per second
    30 cm per second
    24 cm per second
    30s
  • Q4
    What happens to a fan cart moving on a frictionless surface when the fan force is changed from High to Low?
    The cart will stop
    The cart will move backward
    The cart will continue to speed up, but not as quickly as before.
    The cart will slow down
    30s
  • Q5
    What could explain a speed-versus-time bar graph showing no change in speed after the 8-second mark for a fan cart?
    The cart was pushed from behind
    The track was frictionless, and the fan was changed from High to Off after 8 seconds.
    The fan speed was increased
    There was a constant external force
    30s
  • Q6
    What occurs to the fan cart if it is placed on a surface with high friction?
    The cart will speed up indefinitely
    The cart will move faster than on a frictionless surface
    The cart will not move at all
    The cart will slow down more quickly than on a frictionless surface
    30s
  • Q7
    What is the role of friction in the fan cart experiment?
    Friction speeds the cart up
    Friction changes the direction of the cart
    Friction has no effect
    Friction slows the cart down
    30s
  • Q8
    What does the bar graph indicate if the speed remains constant after 8 seconds?
    The surface was made of wood
    The cart never moved
    The track was frictionless, and the fan was changed from High to Off after 8 seconds
    The fan was always off
    30s
  • Q9
    What is needed for a moving object to change its speed?
    Force is needed for a moving object to change its speed
    Force is only needed for motionless objects to start moving
    Force is needed for a moving object to keep moving at the same speed and direction
    Force is required to maintain constant speed
    30s
  • Q10
    If Rebecca's fan cart reaches a speed of 20 cm per second at 10 seconds, what speed will it be at 12 seconds?
    20 cm per second
    22 cm per second
    26 cm per second
    24 cm per second
    30s
  • Q11
    What happens when the fan force is changed from High to Low on a frictionless surface?
    The cart will move backward
    The cart will continue to speed up, but not as quickly as before
    The cart will slow down
    The cart will stop immediately
    30s
  • Q12
    What is force?
    A push or pull on an object
    The energy stored in an object
    The amount of matter in an object
    The temperature of an object
    30s

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